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Pfam 22.0 ::
Browse Families - P
Browse available alignments and models |
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Available sections: Numbers A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Top twenty families
| P | |||||||
| Name | acc number | #seed | #full | av. len | av. %id | structure | Description |
|---|---|---|---|---|---|---|---|
| P-II | PF00543 | 93 | 839 | 101 aa | 51% | 1pil | Nitrogen regulatory protein P-II |
| P-mevalo_kinase | PF04275 | 2 | 21 | 112 aa | 53% |   | Phosphomevalonate kinase |
| P120R | PF08062 | 6 | 23 | 21 aa | 45% |   | P120R (NUC006) repeat |
| P16-Arc | PF04699 | 10 | 80 | 141 aa | 42% |   | ARP2/3 complex 16 kDa subunit (p16-Arc) |
| P19Arf_N | PF07392 | 7 | 23 | 51 aa | 71% | 1hn3 | Cyclin-dependent kinase inhibitor 2a p19Arf N-terminus |
| P2 | PF07194 | 24 | 113 | 83 aa | 28% |   | P2 response regulator binding domain |
| P21-Arc | PF04062 | 5 | 66 | 171 aa | 43% |   | P21-ARC (ARP2/3 complex 21 kDa subunit) |
| p25-alpha | PF05517 | 5 | 55 | 139 aa | 38% |   | p25-alpha |
| P2X_receptor | PF00864 | 6 | 148 | 294 aa | 44% |   | ATP P2X receptor |
| P2_Phage_GpR | PF06891 | 7 | 42 | 129 aa | 43% |   | P2 phage tail completion protein R (GpR) |
| P30 | PF07390 | 2 | 5 | 224 aa | 99% |   | Mycoplasma P30 protein |
| P34-Arc | PF04045 | 5 | 69 | 209 aa | 45% |   | Arp2/3 complex, 34 kD subunit p34-Arc |
| P35 | PF02331 | 3 | 21 | 301 aa | 60% | 1p35 | Apoptosis preventing protein |
| P3A | PF08727 | 12 | 328 | 59 aa | 63% | 1ng7 | Poliovirus 3A protein like |
| p450 | PF00067 | 50 | 8703 | 295 aa | 20% | 2cpp | Cytochrome P450 |
| p47_phox_C | PF08944 | 17 | 23 | 57 aa | 55% |   | NADPH oxidase subunit p47Phox, C terminal domain |
| P4Ha_N | PF08336 | 28 | 121 | 124 aa | 30% |   | Prolyl 4-Hydroxylase alpha-subunit, N-terminal region |
| P53 | PF00870 | 7 | 205 | 150 aa | 62% | 1gzh | P53 DNA-binding domain |
| P53_TAD | PF08563 | 7 | 74 | 24 aa | 62% |   | P53 transactivation motif |
| P53_tetramer | PF07710 | 9 | 126 | 42 aa | 47% | 1olg | P53 tetramerisation motif |
| P68HR | PF08061 | 7 | 49 | 33 aa | 52% |   | P68HR (NUC004) repeat |
| PA | PF02225 | 139 | 975 | 99 aa | 19% | 1cx8 | PA domain |
| PA-IIL | PF07472 | 5 | 28 | 108 aa | 48% | 1uqx | Fucose-binding lectin II (PA-IIL) |
| PA-IL | PF07828 | 2 | 4 | 119 aa | 70% | 1l7l | PA-IL-like protein |
| PA14 | PF07691 | 34 | 249 | 137 aa | 17% |   | PA14 domain |
| PA26 | PF04636 | 4 | 56 | 358 aa | 53% |   | PA26 p53-induced protein (sestrin) |
| PA28_alpha | PF02251 | 4 | 64 | 62 aa | 45% | 1avo | Proteasome activator pa28 alpha subunit |
| PA28_beta | PF02252 | 4 | 85 | 134 aa | 49% | 1avo | Proteasome activator pa28 beta subunit |
| PaaA_PaaC | PF05138 | 6 | 209 | 276 aa | 32% | 1otk | Phenylacetic acid catabolic protein |
| PaaB | PF06243 | 7 | 94 | 87 aa | 58% |   | Phenylacetic acid degradation B |
| PAAD_DAPIN | PF02758 | 39 | 146 | 81 aa | 26% | 1pn5 | PAAD/DAPIN/Pyrin domain |
| PAAR_motif | PF05488 | 37 | 710 | 21 aa | 34% |   | PAAR motif |
| PaaX | PF07848 | 13 | 86 | 66 aa | 35% |   | PaaX-like protein |
| PaaX_C | PF08223 | 13 | 87 | 164 aa | 26% |   | PaaX-like protein C-terminal domain |
| PABP | PF00658 | 7 | 198 | 69 aa | 53% | 1ifw | Poly-adenylate binding protein, unique domain |
| Pacifastin_I | PF05375 | 17 | 54 | 38 aa | 40% | 1kgm | Pacifastin inhibitor (LCMII) |
| PAD | PF03068 | 7 | 45 | 365 aa | 51% |   | Protein-arginine deiminase (PAD) |
| PadR | PF03551 | 33 | 1051 | 78 aa | 27% |   | Transcriptional regulator PadR-like family |
| PADR1 | PF08063 | 9 | 43 | 53 aa | 47% |   | PADR1 (NUC008) domain |
| PAD_M | PF08527 | 7 | 41 | 136 aa | 45% | 1wd8 | Protein-arginine deiminase (PAD) middle domain |
| PAD_N | PF08526 | 7 | 41 | 106 aa | 39% | 1wd8 | Protein-arginine deiminase (PAD) N-terminal domain |
| PAD_porph | PF04371 | 22 | 246 | 330 aa | 34% |   | Porphyromonas-type peptidyl-arginine deiminase |
| PAE | PF03283 | 8 | 84 | 321 aa | 36% |   | Pectinacetylesterase |
| PAF-AH_p_II | PF03403 | 8 | 125 | 329 aa | 26% |   | Platelet-activating factor acetylhydrolase, plasma/intracellular isoform II |
| Paf1 | PF03985 | 5 | 51 | 314 aa | 36% |   | Paf1 |
| PagL | PF09411 | 53 | 125 | 134 aa | 24% |   | Lipid A 3-O-deacylase (PagL) |
| PagP | PF07017 | 4 | 38 | 145 aa | 60% |   | Antimicrobial peptide resistance and lipid A acylation protein PagP |
| PAH | PF02671 | 75 | 296 | 47 aa | 33% | 1g1e | Paired amphipathic helix repeat |
| Paired_CXXCH_1 | PF09699 | 184 | 378 | 40 aa | 35% |   | Doubled CXXCH motif (Paired_CXXCH_1) |
| PAL | PF00221 | 10 | 686 | 410 aa | 37% | 1b8f | Phenylalanine and histidine ammonia-lyase |
| Pal1 | PF08316 | 8 | 30 | 105 aa | 50% |   | Pal1 cell morphology protein |
| PalH | PF08733 | 11 | 28 | 361 aa | 29% |   | PalH/RIM21 |
| PalI | PF08739 | 26 | 43 | 152 aa | 29% |   | pH-response regulator, PalI / Rim9 |
| Palm_thioest | PF02089 | 2 | 114 | 242 aa | 37% | 1exw | Palmitoyl protein thioesterase |
| PALP | PF00291 | 92 | 4490 | 292 aa | 21% | 1tdj | Pyridoxal-phosphate dependent enzyme |
| Pam16 | PF03656 | 3 | 55 | 125 aa | 40% |   | Pam16 |
| Pam17 | PF08566 | 14 | 21 | 174 aa | 42% |   | Mitochondrial import protein Pam17 |
| PAM2 | PF07145 | 37 | 190 | 18 aa | 44% | 1jh4 | Ataxin-2 C-terminal region |
| Pantoate_ligase | PF02569 | 7 | 526 | 267 aa | 42% | 1iho | Pantoate-beta-alanine ligase |
| Pantoate_transf | PF02548 | 8 | 521 | 256 aa | 45% | 1oy0 | Ketopantoate hydroxymethyltransferase |
| PAN_1 | PF00024 | 99 | 588 | 81 aa | 17% | 1bht | PAN domain |
| PAN_2 | PF08276 | 106 | 576 | 64 aa | 47% |   | PAN-like domain |
| PAN_3 | PF08277 | 55 | 88 | 68 aa | 22% |   | PAN-like domain |
| PaO | PF08417 | 21 | 71 | 97 aa | 29% |   | Pheophorbide a oxygenase |
| PAP1 | PF08601 | 11 | 26 | 305 aa | 30% |   | Transcription factor PAP1 |
| PAP2 | PF01569 | 87 | 1907 | 121 aa | 21% | 1d2t | PAP2 superfamily |
| PAPA-1 | PF04795 | 5 | 35 | 84 aa | 37% |   | PAPA-1-like conserved region |
| PapB | PF03333 | 7 | 41 | 80 aa | 47% |   | Adhesin biosynthesis transcription regulatory protein |
| PapG_C | PF03628 | 3 | 29 | 107 aa | 80% |   | PapG chaperone-binding domain |
| PapG_N | PF03627 | 4 | 28 | 225 aa | 59% | 1j8s | PapG carbohydrate binding domain |
| Papilloma_E5 | PF03025 | 8 | 87 | 68 aa | 77% |   | Papillomavirus E5 |
| Papilloma_E5A | PF05776 | 5 | 10 | 91 aa | 69% |   | Papillomavirus E5A protein |
| Papo_T_antigen | PF02380 | 6 | 85 | 90 aa | 57% |   | T-antigen specific domain |
| PAPS_reduct | PF01507 | 27 | 958 | 192 aa | 27% | 1sur | Phosphoadenosine phosphosulfate reductase family |
| PAP_assoc | PF03828 | 29 | 207 | 62 aa | 29% |   | Poly(A) polymerase |
| PAP_central | PF04928 | 26 | 161 | 291 aa | 44% | 1f5a | Poly(A) polymerase central domain |
| Pap_E4 | PF02711 | 13 | 80 | 94 aa | 42% |   | E4 protein |
| PAP_fibrillin | PF04755 | 13 | 105 | 183 aa | 32% |   | PAP_fibrillin |
| PAP_PilO | PF06864 | 3 | 26 | 338 aa | 32% |   | Pilin accessory protein (PilO) |
| PAP_RNA-bind | PF04926 | 13 | 126 | 145 aa | 31% | 1f5a | Poly(A) polymerase predicted RNA binding domain |
| PAR1 | PF06521 | 5 | 7 | 184 aa | 55% |   | PAR1 protein |
| Paralemmin | PF03285 | 2 | 45 | 173 aa | 44% |   | Paralemmin |
| Paramecium_SA | PF01508 | 78 | 2280 | 62 aa | 26% |   | Paramecium surface antigen domain |
| Paramyxovirus_V | PF06641 | 2 | 16 | 248 aa | 62% |   | Paramyxovirus structural protein V |
| Paramyxo_C | PF01692 | 3 | 34 | 194 aa | 73% |   | Paramyxovirus non-structural protein c |
| Paramyxo_ncap | PF00973 | 9 | 1977 | 177 aa | 68% | 1fzk | Paramyxovirus nucleocapsid protein |
| Paramyxo_NS_C | PF02725 | 5 | 46 | 164 aa | 63% |   | Non-structural protein C |
| Paramyxo_P | PF01806 | 4 | 38 | 470 aa | 56% | 1ezj | Paramyxovirus P phosphoprotein |
| Paramyx_P_V | PF03210 | 5 | 171 | 311 aa | 41% |   | Paramyxovirus P/V phosphoprotein |
| Paramyx_RNA_pol | PF00946 | 21 | 479 | 811 aa | 26% |   | Paramyxovirus RNA dependent RNA polymerase |
| Parathyroid | PF01279 | 5 | 60 | 107 aa | 42% | 1zwg | Parathyroid hormone family |
| ParB | PF08775 | 22 | 39 | 122 aa | 37% |   | ParB family |
| ParBc | PF02195 | 51 | 1372 | 88 aa | 29% |   | ParB-like nuclease domain |
| ParBc_2 | PF08857 | 15 | 60 | 168 aa | 36% |   | Putative ParB-like nuclease |
| ParD | PF09386 | 4 | 9 | 78 aa | 78% |   | Antitoxin ParD |
| Pardaxin | PF07425 | 3 | 5 | 33 aa | 95% |   | Pardaxin |
| Parecho_VpG | PF06344 | 4 | 9 | 20 aa | 90% |   | Parechovirus Genome-linked protein |
| PaREP1 | PF05942 | 54 | 102 | 114 aa | 23% |   | Archaeal PaREP1/PaREP8 family |
| PaRep2a | PF07903 | 6 | 34 | 79 aa | 56% |   | PaRep2a protein |
| PaRep2b | PF07775 | 9 | 30 | 338 aa | 42% |   | PaRep2b protein |
| ParG | PF09274 | 3 | 6 | 67 aa | 52% | 1p94 | ParG |
| PARG_cat | PF05028 | 6 | 70 | 236 aa | 40% |   | Poly (ADP-ribose) glycohydrolase (PARG) |
| PARP | PF00644 | 29 | 278 | 172 aa | 26% | 1paw | Poly(ADP-ribose) polymerase catalytic domain |
| PARP_reg | PF02877 | 5 | 92 | 135 aa | 39% | 1paw | Poly(ADP-ribose) polymerase, regulatory domain |
| PARP_regulatory | PF01358 | 6 | 67 | 271 aa | 54% | 1v39 | Poly A polymerase regulatory subunit |
| Parvo_coat | PF00740 | 14 | 885 | 390 aa | 32% | 4dpv | Parvovirus coat protein VP2 |
| Parvo_coat_N | PF08398 | 11 | 460 | 61 aa | 59% |   | Parvovirus coat protein VP1 |
| Parvo_NS1 | PF01057 | 13 | 310 | 215 aa | 39% |   | Parvovirus non-structural protein NS1 |
| PAS | PF00989 | 49 | 6795 | 95 aa | 17% | 2phy | PAS fold |
| PASTA | PF03793 | 242 | 1473 | 60 aa | 22% | 1qme | PASTA domain |
| PAS_2 | PF08446 | 41 | 504 | 83 aa | 47% | 2phy | PAS fold |
| PAS_3 | PF08447 | 122 | 4843 | 89 aa | 19% | 2phy | PAS fold |
| PAS_4 | PF08448 | 49 | 4472 | 100 aa | 17% | 2phy | PAS fold |
| PAS_5 | PF07310 | 10 | 57 | 137 aa | 25% |   | PAS domain |
| PAS_6 | PF08348 | 37 | 192 | 116 aa | 33% |   | YheO-like PAS domain |
| Pas_Saposin | PF09016 | 3 | 9 | 75 aa | 73% |   | Pas factor saposin fold |
| Patatin | PF01734 | 56 | 1712 | 186 aa | 21% | 1oxw | Patatin-like phospholipase |
| Patched | PF02460 | 10 | 259 | 709 aa | 21% |   | Patched family |
| PAX | PF00292 | 6 | 561 | 111 aa | 70% | 1pdn | 'Paired box' domain |
| Paxillin | PF03535 | 2 | 17 | 194 aa | 66% |   | Paxillin family |
| PAXNEB | PF05625 | 7 | 51 | 329 aa | 31% |   | PAXNEB protein |
| PAZ | PF02170 | 58 | 390 | 138 aa | 20% | 1r4k | PAZ domain |
| PA_decarbox | PF05870 | 4 | 33 | 131 aa | 65% |   | Phenolic acid decarboxylase (PAD) |
| PB1 | PF00564 | 53 | 436 | 83 aa | 18% | 1ipg | PB1 domain |
| PBAN | PF05874 | 3 | 25 | 167 aa | 71% |   | Pheromone biosynthesis activating neuropeptide (PBAN) |
| PBC | PF03792 | 4 | 76 | 163 aa | 79% | 1lfu | PBC domain |
| PBCV_basic_adap | PF08789 | 9 | 14 | 38 aa | 40% |   | PBCV-specific basic adaptor domain |
| PBD | PF00786 | 49 | 387 | 53 aa | 33% | 1cee | P21-Rho-binding domain |
| PBP | PF01161 | 17 | 700 | 145 aa | 25% | 1beh | Phosphatidylethanolamine-binding protein |
| PBP5_C | PF07943 | 75 | 510 | 92 aa | 25% | 1hd8 | Penicillin-binding protein 5, C-terminal domain |
| PBP_dimer | PF03717 | 58 | 1726 | 161 aa | 24% | 1k25 | Penicillin-binding Protein dimerisation domain |
| PBP_GOBP | PF01395 | 72 | 601 | 118 aa | 17% | 1c3z | PBP/GOBP family |
| PBP_sp32 | PF07222 | 2 | 9 | 226 aa | 68% |   | Proacrosin binding protein sp32 |
| PBS_linker_poly | PF00427 | 23 | 268 | 136 aa | 38% |   | Phycobilisome Linker polypeptide |
| PC4 | PF02229 | 6 | 66 | 86 aa | 34% | 1pcf | Transcriptional Coactivator p15 (PC4) |
| PCAF_N | PF06466 | 4 | 26 | 245 aa | 56% |   | PCAF (P300/CBP-associated factor) N-terminal domain |
| Pcc1 | PF09341 | 16 | 46 | 74 aa | 31% |   | Transcription factor Pcc1 |
| PCEMA1 | PF07418 | 2 | 22 | 237 aa | 52% |   | Acidic phosphoprotein precursor PCEMA1 |
| PcF | PF09461 | 5 | 20 | 45 aa | 70% |   | Phytotoxin PcF protein |
| PCI | PF01399 | 77 | 930 | 106 aa | 17% |   | PCI domain |
| PCMT | PF01135 | 9 | 626 | 174 aa | 35% | 1dl5 | Protein-L-isoaspartate(D-aspartate) O-methyltransferase (PCMT) |
| PCNA_C | PF02747 | 12 | 223 | 116 aa | 37% | 1plq | Proliferating cell nuclear antigen, C-terminal domain |
| PCNA_N | PF00705 | 13 | 235 | 109 aa | 39% | 1plq | Proliferating cell nuclear antigen, N-terminal domain |
| PCP | PF02429 | 7 | 117 | 129 aa | 63% | 1ppr | Peridinin-chlorophyll A binding protein |
| PCP_red | PF08369 | 38 | 166 | 44 aa | 48% |   | Proto-chlorophyllide reductase 57 kD subunit |
| PcrB | PF01884 | 6 | 98 | 220 aa | 33% | 1viz | PcrB family |
| PCRF | PF03462 | 67 | 1170 | 112 aa | 38% | 1gqe | PCRF domain |
| PC_rep | PF01851 | 161 | 1339 | 33 aa | 20% |   | Proteasome/cyclosome repeat |
| PD-C2-AF1 | PF09310 | 2 | 13 | 219 aa | 66% |   | POU domain, class 2, associating factor 1 |
| PD40 | PF07676 | 142 | 3821 | 37 aa | 22% | 1crz | WD40-like Beta Propeller Repeat |
| PDCD2_C | PF04194 | 2 | 104 | 160 aa | 28% |   | Programmed cell death protein 2, C-terminal putative domain |
| PDCD9 | PF07147 | 5 | 18 | 432 aa | 40% |   | Mitochondrial 28S ribosomal protein S30 (PDCD9) |
| PDE6_gamma | PF04868 | 2 | 37 | 76 aa | 80% |   | Retinal cGMP phosphodiesterase, gamma subunit |
| PDE8 | PF08629 | 2 | 12 | 21 aa | 79% |   | PDE8 phosphodiesterase |
| PDEase_I | PF00233 | 8 | 535 | 232 aa | 32% | 1f0j | 3'5'-cyclic nucleotide phosphodiesterase |
| PDEase_II | PF02112 | 5 | 46 | 295 aa | 33% |   | cAMP phosphodiesterases class-II |
| PDEase_I_N | PF08499 | 6 | 57 | 58 aa | 66% |   | 3'5'-cyclic nucleotide phosphodiesterase N-terminal |
| PDGF | PF00341 | 3 | 211 | 73 aa | 40% | 1pdg | Platelet-derived growth factor (PDGF) |
| PDGF_N | PF04692 | 7 | 57 | 62 aa | 55% | 1pdg | Platelet-derived growth factor, N terminal region |
| PDH | PF02153 | 10 | 501 | 264 aa | 27% |   | Prephenate dehydrogenase |
| PDR_assoc | PF08370 | 38 | 57 | 65 aa | 42% |   | Plant PDR ABC transporter associated |
| PDR_CDR | PF06422 | 35 | 283 | 139 aa | 29% |   | CDR ABC transporter |
| PDT | PF00800 | 11 | 596 | 172 aa | 33% | 1ecm | Prephenate dehydratase |
| PduL | PF06130 | 26 | 168 | 76 aa | 32% |   | Propanediol utilisation protein PduL |
| PdxA | PF04166 | 16 | 429 | 295 aa | 38% | 1r8k | Pyridoxal phosphate biosynthetic protein PdxA |
| PdxJ | PF03740 | 9 | 343 | 234 aa | 47% | 1ixq | Pyridoxal phosphate biosynthesis protein PdxJ |
| PDZ | PF00595 | 58 | 5612 | 76 aa | 22% |   | PDZ domain (Also known as DHR or GLGF) |
| PE | PF00934 | 9 | 488 | 91 aa | 49% |   | PE family |
| PE-PPE | PF08237 | 6 | 126 | 222 aa | 31% |   | PE-PPE domain |
| Pea-VEAacid | PF08111 | 2 | 2 | 15 aa | 93% |   | Pea-VEAacid family |
| PEARLI-4 | PF05278 | 6 | 17 | 249 aa | 51% |   | Arabidopsis phospholipase-like protein (PEARLI 4) |
| Pecanex_C | PF05041 | 3 | 44 | 177 aa | 52% |   | Pecanex protein (C-terminus) |
| Pectate_lyase | PF03211 | 12 | 90 | 211 aa | 31% | 1ee6 | Pectate lyase |
| Pectate_lyase_2 | PF06917 | 2 | 20 | 502 aa | 50% |   | Periplasmic pectate lyase |
| Pectinesterase | PF01095 | 36 | 445 | 251 aa | 36% | 1qjv | Pectinesterase |
| Pec_lyase | PF09492 | 42 | 54 | 286 aa | 39% |   | Pectic acid lyase (pec_lyase) |
| Pec_lyase_C | PF00544 | 10 | 320 | 189 aa | 32% | 2pec | Pectate lyase |
| Pec_lyase_N | PF04431 | 8 | 35 | 47 aa | 47% |   | Pectate lyase, N terminus |
| Pedibin | PF08182 | 2 | 4 | 38 aa | 75% |   | Pedibin/Hym-346 family |
| PEGA | PF08308 | 32 | 220 | 65 aa | 26% |   | PEGA domain |
| PEGSRP | PF07623 | 6 | 15 | 26 aa | 75% |   | Protein of unknown function (DUF1584) |
| Pellino | PF04710 | 4 | 37 | 352 aa | 63% |   | Pellino |
| PemK | PF02452 | 11 | 319 | 103 aa | 29% | 1ne8 | PemK-like protein |
| PEMT | PF04191 | 4 | 49 | 173 aa | 51% |   | Phospholipid methyltransferase |
| Penaeidin | PF05927 | 4 | 41 | 73 aa | 69% | 1ueo | Penaeidin |
| Pencillinase_R | PF03965 | 48 | 375 | 111 aa | 24% | 1p6r | Penicillinase repressor |
| Penicil_amidase | PF01804 | 21 | 298 | 641 aa | 22% | 1pnk | Penicillin amidase |
| Pentapeptide | PF00805 | 95 | 3479 | 39 aa | 25% |   | Pentapeptide repeats (8 copies) |
| Pentapeptide_2 | PF01469 | 8 | 1573 | 35 aa | 40% |   | Pentapeptide repeats (8 copies) |
| Pentaxin | PF00354 | 9 | 164 | 187 aa | 34% | 1sac | Pentaxin family |
| PEP-utilisers_N | PF05524 | 44 | 657 | 123 aa | 27% | 3eza | PEP-utilising enzyme, N-terminal |
| PEP-utilizers | PF00391 | 84 | 1485 | 82 aa | 32% | 1dik | PEP-utilising enzyme, mobile domain |
| PEP-utilizers_C | PF02896 | 17 | 1235 | 288 aa | 33% | 1dik | PEP-utilising enzyme, TIM barrel domain |
| Pep3_Vps18 | PF05131 | 8 | 66 | 142 aa | 28% |   | Pep3/Vps18/deep orange family |
| PEPcase | PF00311 | 2 | 1018 | 485 aa | 41% | 1fiy | Phosphoenolpyruvate carboxylase |
| PEPCK | PF00821 | 9 | 653 | 306 aa | 60% | 1khf | Phosphoenolpyruvate carboxykinase |
| PEPCK_ATP | PF01293 | 11 | 332 | 446 aa | 48% | 1ayl | Phosphoenolpyruvate carboxykinase |
| Pepsin-I3 | PF06394 | 11 | 28 | 75 aa | 33% | 1f34 | Pepsin inhibitor-3-like repeated domain |
| PepSY | PF03413 | 209 | 847 | 65 aa | 16% | 1qf2 | Peptidase propeptide and YPEB domain |
| PepSY_TM | PF03929 | 216 | 1587 | 29 aa | 22% |   | PepSY-associated TM helix |
| Peptidase_A17 | PF05380 | 6 | 36 | 124 aa | 37% |   | Pao retrotransposon peptidase |
| Peptidase_A21 | PF03566 | 4 | 28 | 623 aa | 72% | 1ohf | Peptidase family A21 |
| Peptidase_A22B | PF04258 | 14 | 163 | 280 aa | 29% |   | Signal peptide peptidase |
| Peptidase_A24 | PF01478 | 105 | 703 | 108 aa | 24% |   | Type IV leader peptidase family |
| Peptidase_A25 | PF03418 | 2 | 44 | 318 aa | 50% | 1c8b | Germination protease |
| Peptidase_A3 | PF02160 | 6 | 31 | 183 aa | 44% |   | Cauliflower mosaic virus peptidase (A3) |
| Peptidase_A4 | PF01828 | 4 | 30 | 198 aa | 47% | 1s2b | Peptidase A4 family |
| Peptidase_A6 | PF01829 | 3 | 5 | 359 aa | 50% | 1nov | Peptidase A6 family |
| Peptidase_A8 | PF01252 | 11 | 614 | 151 aa | 32% |   | Signal peptidase (SPase) II |
| Peptidase_C1 | PF00112 | 158 | 2347 | 189 aa | 34% | 1aec | Papain family cysteine protease |
| Peptidase_C10 | PF01640 | 2 | 33 | 266 aa | 47% | 1dki | Peptidase C10 family |
| Peptidase_C11 | PF03415 | 7 | 35 | 331 aa | 25% |   | Clostripain family |
| Peptidase_C12 | PF01088 | 101 | 273 | 217 aa | 23% | 1uch | Ubiquitin carboxyl-terminal hydrolase, family 1 |
| Peptidase_C13 | PF01650 | 37 | 227 | 210 aa | 34% |   | Peptidase C13 family |
| Peptidase_C14 | PF00656 | 118 | 788 | 212 aa | 19% | 1ice | Caspase domain |
| Peptidase_C15 | PF01470 | 9 | 187 | 194 aa | 38% | 1aug | Pyroglutamyl peptidase |
| Peptidase_C16 | PF01831 | 2 | 47 | 231 aa | 71% |   | Peptidase C16 family |
| Peptidase_C1_2 | PF03051 | 13 | 155 | 396 aa | 40% | 1a6r | Peptidase C1-like family |
| Peptidase_C2 | PF00648 | 9 | 489 | 254 aa | 32% | 1dkv | Calpain family cysteine protease |
| Peptidase_C21 | PF05381 | 13 | 25 | 104 aa | 39% |   | Tymovirus endopeptidase |
| Peptidase_C23 | PF05379 | 12 | 72 | 86 aa | 44% |   | Carlavirus endopeptidase |
| Peptidase_C24 | PF03510 | 5 | 59 | 102 aa | 37% |   | 2C endopeptidase (C24) cysteine protease family |
| Peptidase_C25 | PF01364 | 2 | 26 | 287 aa | 41% | 1cvr | Peptidase family C25 |
| Peptidase_C25_C | PF03785 | 3 | 17 | 79 aa | 56% | 1cvr | Peptidase family C25, C terminal ig-like domain |
| Peptidase_C26 | PF07722 | 46 | 414 | 204 aa | 31% |   | Peptidase C26 |
| Peptidase_C27 | PF05407 | 5 | 41 | 166 aa | 98% |   | Rubella virus endopeptidase |
| Peptidase_C28 | PF05408 | 4 | 268 | 189 aa | 76% | 1qol | Foot-and-mouth virus L-proteinase |
| Peptidase_C3 | PF00548 | 20 | 1074 | 163 aa | 45% | 1hav | 3C cysteine protease (picornain 3C) |
| Peptidase_C30 | PF05409 | 5 | 172 | 276 aa | 56% | 1lvo | Coronavirus endopeptidase C30 |
| Peptidase_C31 | PF05410 | 3 | 55 | 105 aa | 90% |   | Porcine arterivirus-type cysteine proteinase alpha |
| Peptidase_C32 | PF05411 | 4 | 42 | 127 aa | 72% |   | Equine arteritis virus putative proteinase |
| Peptidase_C33 | PF05412 | 4 | 73 | 96 aa | 62% |   | Equine arterivirus Nsp2-type cysteine proteinase |
| Peptidase_C34 | PF05413 | 2 | 7 | 92 aa | 67% |   | Putative closterovirus papain-like endopeptidase |
| Peptidase_C36 | PF05415 | 2 | 3 | 104 aa | 88% |   | Beet necrotic yellow vein furovirus-type papain-like endopeptidase |
| Peptidase_C37 | PF05416 | 5 | 62 | 505 aa | 67% |   | Southampton virus-type processing peptidase |
| Peptidase_C39 | PF03412 | 36 | 493 | 127 aa | 23% |   | Peptidase C39 family |
| Peptidase_C4 | PF00863 | 39 | 598 | 222 aa | 56% | 1lvm | Peptidase family C4 |
| Peptidase_C41 | PF05417 | 4 | 97 | 142 aa | 77% |   | Hepatitis E cysteine protease |
| Peptidase_C42 | PF05533 | 8 | 93 | 73 aa | 64% |   | Beet yellows virus-type papain-like endopeptidase C42 |
| Peptidase_C47 | PF05543 | 4 | 29 | 175 aa | 68% | 1cv8 | Staphopain peptidase C47 |
| Peptidase_C48 | PF02902 | 27 | 672 | 132 aa | 29% | 1euv | Ulp1 protease family, C-terminal catalytic domain |
| Peptidase_C5 | PF00770 | 13 | 68 | 170 aa | 62% | 1avp | Adenovirus endoprotease |
| Peptidase_C50 | PF03568 | 20 | 70 | 348 aa | 24% |   | Peptidase family C50 |
| Peptidase_C53 | PF05550 | 5 | 394 | 156 aa | 76% |   | Pestivirus Npro endopeptidase C53 |
| Peptidase_C54 | PF03416 | 14 | 138 | 289 aa | 31% |   | Peptidase family C54 |
| Peptidase_C57 | PF03290 | 5 | 50 | 422 aa | 67% |   | Vaccinia virus I7 processing peptidase |
| Peptidase_C58 | PF03543 | 14 | 36 | 173 aa | 30% | 1ukf | Yersinia/Haemophilus virulence surface antigen |
| Peptidase_C6 | PF00851 | 19 | 512 | 409 aa | 51% |   | Helper component proteinase |
| Peptidase_C69 | PF03577 | 17 | 145 | 371 aa | 36% |   | Peptidase family C69 |
| Peptidase_C7 | PF01830 | 14 | 74 | 89 aa | 67% |   | Peptidase C7 family |
| Peptidase_C78 | PF07910 | 25 | 78 | 180 aa | 31% |   | Peptidase family C78 |
| Peptidase_C8 | PF03569 | 2 | 4 | 209 aa | 64% |   | Peptidase family C8 |
| Peptidase_C9 | PF01707 | 8 | 77 | 202 aa | 52% |   | Peptidase family C9 |
| Peptidase_M1 | PF01433 | 36 | 1225 | 355 aa | 25% | 1hs6 | Peptidase family M1 |
| Peptidase_M10 | PF00413 | 69 | 714 | 152 aa | 36% | 2srt | Matrixin |
| Peptidase_M10_C | PF08548 | 15 | 98 | 239 aa | 44% |   | Peptidase M10 serralysin C terminal |
| Peptidase_M11 | PF05548 | 6 | 18 | 309 aa | 30% |   | Gametolysin peptidase M11 |
| Peptidase_M13 | PF01431 | 24 | 503 | 192 aa | 36% | 1dmt | Peptidase family M13 |
| Peptidase_M13_N | PF05649 | 25 | 498 | 347 aa | 24% | 1dmt | Peptidase family M13 |
| Peptidase_M14 | PF00246 | 125 | 1013 | 239 aa | 21% | 1cbx | Zinc carboxypeptidase |
| Peptidase_M15 | PF01427 | 5 | 193 | 194 aa | 29% |   | D-ala-D-ala dipeptidase |
| Peptidase_M15_2 | PF05951 | 10 | 131 | 149 aa | 45% |   | Bacterial protein of unknown function (DUF882) |
| Peptidase_M15_3 | PF08291 | 19 | 90 | 106 aa | 27% |   | Peptidase M15 |
| Peptidase_M16 | PF00675 | 26 | 1719 | 130 aa | 23% | 1bgy | Insulinase (Peptidase family M16) |
| Peptidase_M16_C | PF05193 | 184 | 2353 | 172 aa | 16% | 1kb9 | Peptidase M16 inactive domain |
| Peptidase_M17 | PF00883 | 17 | 827 | 295 aa | 41% | 1lam | Cytosol aminopeptidase family, catalytic domain |
| Peptidase_M17_N | PF02789 | 103 | 556 | 122 aa | 22% | 1lam | Cytosol aminopeptidase family, N-terminal domain |
| Peptidase_M18 | PF02127 | 9 | 227 | 415 aa | 34% |   | Aminopeptidase I zinc metalloprotease (M18) |
| Peptidase_M19 | PF01244 | 51 | 370 | 312 aa | 27% | 1itq | Membrane dipeptidase (Peptidase family M19) |
| Peptidase_M2 | PF01401 | 6 | 157 | 478 aa | 40% |   | Angiotensin-converting enzyme |
| Peptidase_M20 | PF01546 | 373 | 3779 | 308 aa | 14% | 1cg2 | Peptidase family M20/M25/M40 |
| Peptidase_M22 | PF00814 | 114 | 1297 | 245 aa | 25% |   | Glycoprotease family |
| Peptidase_M23 | PF01551 | 278 | 2368 | 97 aa | 34% | 1qwy | Peptidase family M23 |
| Peptidase_M24 | PF00557 | 22 | 2749 | 221 aa | 24% | 1mat | metallopeptidase family M24 |
| Peptidase_M26_C | PF07580 | 7 | 28 | 691 aa | 51% |   | M26 IgA1-specific Metallo-endopeptidase C-terminal region |
| Peptidase_M26_N | PF05342 | 8 | 23 | 250 aa | 53% |   | M26 IgA1-specific Metallo-endopeptidase N-terminal region |
| Peptidase_M27 | PF01742 | 13 | 111 | 350 aa | 42% | 3bta | Clostridial neurotoxin zinc protease |
| Peptidase_M28 | PF04389 | 68 | 812 | 161 aa | 24% | 1de4 | Peptidase family M28 |
| Peptidase_M29 | PF02073 | 3 | 188 | 365 aa | 35% |   | Thermophilic metalloprotease (M29) |
| Peptidase_M3 | PF01432 | 29 | 1083 | 394 aa | 22% | 1i1i | Peptidase family M3 |
| Peptidase_M32 | PF02074 | 3 | 194 | 471 aa | 34% | 1ka4 | Carboxypeptidase Taq (M32) metallopeptidase |
| Peptidase_M35 | PF02102 | 4 | 54 | 326 aa | 33% | 1eb6 | Deuterolysin metalloprotease (M35) family |
| Peptidase_M36 | PF02128 | 2 | 70 | 332 aa | 51% |   | Fungalysin metallopeptidase (M36) |
| Peptidase_M3_N | PF08439 | 93 | 347 | 68 aa | 24% |   | Oligopeptidase F |
| Peptidase_M4 | PF01447 | 13 | 385 | 124 aa | 38% | 8tln | Thermolysin metallopeptidase, catalytic domain |
| Peptidase_M41 | PF01434 | 31 | 1163 | 194 aa | 38% | 1lv7 | Peptidase family M41 |
| Peptidase_M42 | PF05343 | 69 | 427 | 280 aa | 29% | 1vhe | M42 glutamyl aminopeptidase |
| Peptidase_M43 | PF05572 | 2 | 34 | 101 aa | 52% |   | Pregnancy-associated plasma protein-A |
| Peptidase_M44 | PF03410 | 3 | 42 | 595 aa | 65% |   | Protein G1 |
| Peptidase_M48 | PF01435 | 21 | 1633 | 176 aa | 23% |   | Peptidase family M48 |
| Peptidase_M49 | PF03571 | 3 | 89 | 514 aa | 42% |   | Peptidase family M49 |
| Peptidase_M4_C | PF02868 | 12 | 377 | 144 aa | 39% | 8tln | Thermolysin metallopeptidase, alpha-helical domain |
| Peptidase_M50 | PF02163 | 70 | 1204 | 280 aa | 21% |   | Peptidase family M50 |
| Peptidase_M55 | PF04951 | 5 | 68 | 261 aa | 37% | 1hi9 | D-aminopeptidase |
| Peptidase_M56 | PF05569 | 12 | 216 | 88 aa | 28% |   | BlaR1 peptidase M56 |
| Peptidase_M6 | PF05547 | 5 | 106 | 426 aa | 36% |   | Immune inhibitor A peptidase M6 |
| Peptidase_M61 | PF05299 | 10 | 167 | 119 aa | 39% |   | M61 glycyl aminopeptidase |
| Peptidase_M64 | PF09471 | 15 | 24 | 245 aa | 28% |   | IgA Peptidase M64 |
| Peptidase_M7 | PF02031 | 4 | 10 | 124 aa | 62% | 1kuh | Streptomyces extracellular neutral proteinase (M7) family |
| Peptidase_M74 | PF03411 | 3 | 82 | 244 aa | 47% |   | Penicillin-insensitive murein endopeptidase |
| Peptidase_M75 | PF09375 | 48 | 251 | 285 aa | 22% |   | Imelysin |
| Peptidase_M8 | PF01457 | 8 | 453 | 278 aa | 31% | 1lml | Leishmanolysin |
| Peptidase_M9 | PF01752 | 7 | 143 | 268 aa | 37% |   | Collagenase |
| Peptidase_M9_N | PF08453 | 20 | 131 | 148 aa | 33% |   | Peptidase family M9 N-terminal |
| Peptidase_S10 | PF00450 | 72 | 735 | 385 aa | 23% | 1whs | Serine carboxypeptidase |
| Peptidase_S11 | PF00768 | 12 | 1043 | 236 aa | 31% | 1skf | D-alanyl-D-alanine carboxypeptidase |
| Peptidase_S13 | PF02113 | 9 | 297 | 353 aa | 26% |   | D-Ala-D-Ala carboxypeptidase 3 (S13) family |
| Peptidase_S15 | PF02129 | 48 | 372 | 264 aa | 22% | 1l7q | X-Pro dipeptidyl-peptidase (S15 family) |
| Peptidase_S21 | PF00716 | 11 | 97 | 295 aa | 28% | 1cmv | Assemblin (Peptidase family S21) |
| Peptidase_S24 | PF00717 | 235 | 2357 | 74 aa | 24% | 1umu | Peptidase S24-like |
| Peptidase_S28 | PF05577 | 13 | 213 | 389 aa | 26% |   | Serine carboxypeptidase S28 |
| Peptidase_S29 | PF02907 | 9 | 2360 | 145 aa | 87% | 1a1r | Hepatitis C virus NS3 protease |
| Peptidase_S3 | PF00944 | 5 | 218 | 116 aa | 64% | 1kxf | Alphavirus core protein |
| Peptidase_S30 | PF01577 | 26 | 770 | 228 aa | 32% |   | Potyvirus P1 protease |
| Peptidase_S31 | PF05578 | 4 | 166 | 161 aa | 88% |   | Pestivirus NS3 polyprotein peptidase S31 |
| Peptidase_S32 | PF05579 | 6 | 60 | 338 aa | 67% | 1mbm | Equine arteritis virus serine endopeptidase S32 |
| Peptidase_S37 | PF05576 | 2 | 13 | 405 aa | 41% |   | PS-10 peptidase S37 |
| Peptidase_S39 | PF02122 | 5 | 210 | 294 aa | 42% |   | Putative replicase 1 (ORF2) |
| Peptidase_S41 | PF03572 | 146 | 1798 | 171 aa | 34% | 1k32 | Peptidase family S41 |
| Peptidase_S48 | PF03574 | 3 | 95 | 147 aa | 85% |   | Peptidase family S48 |
| Peptidase_S49 | PF01343 | 20 | 1015 | 138 aa | 27% |   | Peptidase family S49 |
| Peptidase_S49_N | PF08496 | 24 | 117 | 152 aa | 46% |   | Peptidase family S49 N-terminal |
| Peptidase_S51 | PF03575 | 24 | 191 | 154 aa | 25% | 1fy2 | Peptidase family S51 |
| Peptidase_S55 | PF05580 | 6 | 54 | 202 aa | 52% |   | SpoIVB peptidase S55 |
| Peptidase_S58 | PF03576 | 4 | 211 | 328 aa | 32% | 1b65 | Peptidase family S58 |
| Peptidase_S6 | PF02395 | 9 | 123 | 666 aa | 42% |   | Immunoglobulin A1 protease |
| Peptidase_S64 | PF08192 | 4 | 8 | 645 aa | 40% |   | Peptidase family S64 |
| Peptidase_S66 | PF02016 | 21 | 348 | 276 aa | 27% |   | LD-carboxypeptidase |
| Peptidase_S7 | PF00949 | 13 | 506 | 160 aa | 59% | 1bef | Peptidase S7, Flavivirus NS3 serine protease |
| Peptidase_S8 | PF00082 | 45 | 2706 | 280 aa | 23% | 1cse | Subtilase family |
| Peptidase_S9 | PF00326 | 70 | 1434 | 201 aa | 22% | 1qfs | Prolyl oligopeptidase family |
| Peptidase_S9_N | PF02897 | 30 | 456 | 393 aa | 21% | 1qfs | Prolyl oligopeptidase, N-terminal beta-propeller domain |
| Peptidase_U32 | PF01136 | 41 | 782 | 233 aa | 29% |   | Peptidase family U32 |
| Peptidase_U35 | PF04586 | 36 | 218 | 155 aa | 25% |   | Caudovirus prohead protease |
| Peptidase_U4 | PF03419 | 3 | 41 | 275 aa | 32% |   | Sporulation factor SpoIIGA |
| Peptidase_U57 | PF05582 | 7 | 41 | 271 aa | 48% |   | YabG peptidase U57 |
| Peptidase_U9 | PF03420 | 2 | 21 | 184 aa | 47% |   | Prohead core protein protease |
| Pept_tRNA_hydro | PF01195 | 10 | 609 | 180 aa | 38% | 2pth | Peptidyl-tRNA hydrolase |
| PepX_C | PF08530 | 64 | 343 | 237 aa | 18% |   | X-Pro dipeptidyl-peptidase C-terminal non-catalytic domain |
| PepX_N | PF09168 | 18 | 58 | 144 aa | 38% | 1lns | X-Prolyl dipeptidyl aminopeptidase PepX, N-terminal |
| Pep_deformylase | PF01327 | 14 | 934 | 156 aa | 35% | 1def | Polypeptide deformylase |
| Pep_M12B_propep | PF01562 | 37 | 474 | 138 aa | 28% | 1fvl | Reprolysin family propeptide |
| Per1 | PF04080 | 5 | 52 | 260 aa | 35% |   | Per1-like |
| PerB | PF06590 | 2 | 6 | 129 aa | 95% |   | PerB protein |
| PerC | PF06069 | 4 | 15 | 88 aa | 50% |   | PerC transcriptional activator |
| Pericardin_rpt | PF07054 | 5 | 157 | 32 aa | 62% |   | Pericardin like repeat |
| Perilipin | PF03036 | 8 | 84 | 297 aa | 34% |   | Perilipin family |
| Peripla_BP_1 | PF00532 | 6 | 3727 | 225 aa | 18% | 8abp | Periplasmic binding proteins and sugar binding domain of the LacI family |
| Peripla_BP_2 | PF01497 | 32 | 1696 | 215 aa | 18% | 1efd | Periplasmic binding protein |
| Periviscerokin | PF08259 | 3 | 49 | 11 aa | 76% |   | Periviscerokinin family |
| peroxidase | PF00141 | 295 | 1983 | 262 aa | 24% | 1hsr | Peroxidase |
| Peroxidase_2 | PF01328 | 2 | 41 | 88 aa | 48% | 1cpo | Peroxidase, family 2 |
| Peroxin-13_N | PF04088 | 5 | 39 | 153 aa | 36% |   | Peroxin 13, N-terminal |
| Peroxin-3 | PF04882 | 7 | 52 | 408 aa | 29% |   | Peroxin-3 |
| Pertactin | PF03212 | 8 | 449 | 113 aa | 45% | 1dab | Pertactin |
| Pertus-S4-tox | PF09275 | 2 | 3 | 110 aa | 99% | 1prt | Pertussis toxin S4 subunit |
| Pertus-S5-tox | PF09276 | 2 | 3 | 97 aa | 94% | 1prt | Pertussis toxin S5 subunit |
| Pertussis_S1 | PF02917 | 2 | 13 | 114 aa | 48% | 1bcp | Pertussis toxin, subunit 1 |
| Pertussis_S2S3 | PF02918 | 2 | 9 | 109 aa | 58% | 1bcp | Pertussis toxin, subunit 2 and 3, C-terminal domain |
| Pes-10 | PF07149 | 5 | 5 | 371 aa | 31% |   | Pes-10 |
| Pescadillo_N | PF06732 | 9 | 68 | 257 aa | 45% |   | Pescadillo N-terminus |
| PET | PF06297 | 11 | 132 | 101 aa | 47% |   | PET Domain |
| PET122 | PF05476 | 4 | 8 | 254 aa | 34% |   | PET122 |
| Pet127 | PF08634 | 11 | 28 | 260 aa | 46% |   | Mitochondrial protein Pet127 |
| Pet20 | PF08692 | 6 | 10 | 86 aa | 37% |   | Mitochondrial protein Pet20 |
| PetG | PF02529 | 6 | 129 | 36 aa | 77% |   | Cytochrome B6-F complex subunit 5 |
| PetL | PF05115 | 6 | 168 | 30 aa | 78% |   | Cytochrome B6-F complex subunit VI (PetL) |
| PetM | PF08041 | 14 | 45 | 34 aa | 46% |   | PetM family of cytochrome b6f complex subunit 7 |
| PetN | PF03742 | 8 | 310 | 28 aa | 85% |   | PetN |
| PEX-1N | PF09262 | 25 | 51 | 80 aa | 33% | 1wlf | Peroxisome biogenesis factor 1, N-terminal |
| PEX-2N | PF09263 | 2 | 8 | 86 aa | 62% | 1wlf | Peroxisome biogenesis factor 1, N-terminal |
| PEX11 | PF05648 | 12 | 91 | 219 aa | 23% |   | Peroxisomal biogenesis factor 11 (PEX11) |
| Pex14_N | PF04695 | 8 | 74 | 117 aa | 30% | 1n5z | Peroxisomal membrane anchor protein (Pex14p) conserved region |
| Pex16 | PF08610 | 11 | 48 | 325 aa | 26% |   | Peroxisomal membrane protein (Pex16) |
| Pex19 | PF04614 | 7 | 59 | 221 aa | 27% |   | Pex19 protein family |
| Pex24p | PF06398 | 8 | 60 | 317 aa | 23% |   | Integral peroxisomal membrane peroxin |
| Pex26 | PF07163 | 2 | 11 | 282 aa | 64% |   | Pex26 protein |
| Pex2_Pex12 | PF04757 | 18 | 158 | 220 aa | 16% |   | Pex2 / Pex12 amino terminal region |
| PFEMP | PF03011 | 41 | 226 | 144 aa | 28% |   | PFEMP DBL domain |
| Pfg27 | PF09216 | 2 | 5 | 176 aa | 70% | 1n81 | Pfg27 |
| PFK | PF00365 | 12 | 915 | 274 aa | 33% | 5pfk | Phosphofructokinase |
| PfkB | PF00294 | 67 | 3390 | 243 aa | 19% | 1rkd | pfkB family carbohydrate kinase |
| PFL | PF02901 | 11 | 360 | 583 aa | 34% | 3pfl | Pyruvate formate lyase |
| PFU | PF09070 | 30 | 61 | 107 aa | 40% |   | PFU (PLAA family ubiquitin binding) |
| PGA2 | PF07543 | 2 | 10 | 109 aa | 33% |   | Protein trafficking PGA2 |
| PGAM | PF00300 | 277 | 3047 | 151 aa | 23% | 3pgm | Phosphoglycerate mutase family |
| PGAMP | PF07644 | 4 | 5 | 34 aa | 49% |   | Planctomycete PGAMP |
| PGAP1 | PF07819 | 20 | 191 | 191 aa | 24% |   | PGAP1-like protein |
| PGA_cap | PF09587 | 142 | 240 | 245 aa | 27% |   | Bacterial capsule synthesis protein PGA_cap |
| PGI | PF00342 | 10 | 1360 | 337 aa | 37% | 1pgi | Phosphoglucose isomerase |
| PGK | PF00162 | 19 | 1011 | 362 aa | 45% | 3pgk | Phosphoglycerate kinase |
| PglZ | PF08665 | 16 | 67 | 174 aa | 23% |   | PglZ domain |
| PGM_PMM_I | PF02878 | 89 | 2302 | 123 aa | 29% | 3pmg | Phosphoglucomutase/phosphomannomutase, alpha/beta/alpha domain I |
| PGM_PMM_II | PF02879 | 16 | 2322 | 101 aa | 29% | 3pmg | Phosphoglucomutase/phosphomannomutase, alpha/beta/alpha domain II |
| PGM_PMM_III | PF02880 | 16 | 2199 | 109 aa | 23% | 3pmg | Phosphoglucomutase/phosphomannomutase, alpha/beta/alpha domain III |
| PGM_PMM_IV | PF00408 | 15 | 1633 | 64 aa | 28% | 3pmg | Phosphoglucomutase/phosphomannomutase, C-terminal domain |
| PgpA | PF04608 | 88 | 318 | 146 aa | 30% |   | Phosphatidylglycerophosphatase A |
| PG_binding_1 | PF01471 | 239 | 1731 | 57 aa | 25% | 1lbu | Putative peptidoglycan binding domain |
| PG_binding_2 | PF08823 | 9 | 23 | 65 aa | 29% |   | Putative peptidoglycan binding domain |
| PG_binding_3 | PF09374 | 20 | 88 | 72 aa | 31% |   | Predicted Peptidoglycan domain |
| PH | PF00169 | 144 | 3840 | 105 aa | 17% | 1dyn | PH domain |
| Ph1570 | PF09638 | 4 | 4 | 153 aa | 62% |   | Ph1570 protein |
| PhaC_N | PF07167 | 39 | 568 | 99 aa | 54% |   | Poly-beta-hydroxybutyrate polymerase (PhaC) N-terminus |
| Phage-Gp8 | PF09215 | 9 | 20 | 262 aa | 39% | 1n7z | Bacteriophage T4, Gp8 |
| Phage-MuB_C | PF09077 | 8 | 10 | 76 aa | 41% | 1f6v | Mu B transposition protein, C terminal |
| Phage-scaffold | PF09306 | 2 | 9 | 286 aa | 91% |   | Bacteriophage, scaffolding protein |
| Phage-tail_1 | PF09097 | 4 | 9 | 194 aa | 51% | 1k28 | Baseplate structural protein, domain 1 |
| Phage-tail_2 | PF09096 | 5 | 8 | 170 aa | 53% | 1k28 | Baseplate structural protein, domain 2 |
| PhageP22-tail | PF09251 | 2 | 15 | 384 aa | 79% | 1tyv | Salmonella phage P22 tailspike |
| Phageshock_PspD | PF09584 | 5 | 23 | 64 aa | 67% |   | Phage shock protein PspD (Phageshock_PspD) |
| Phageshock_PspG | PF09583 | 9 | 32 | 65 aa | 59% |   | Phage shock protein G (Phageshock_PspG) |
| Phage_1_1 | PF08200 | 5 | 14 | 42 aa | 58% |   | Bacteriophage 1.1 Protein |
| Phage_30_3 | PF08010 | 19 | 26 | 149 aa | 65% |   | Bacteriophage protein GP30.3 |
| Phage_30_8 | PF06019 | 2 | 15 | 110 aa | 91% |   | Phage GP30.8 protein |
| Phage_AlpA | PF05930 | 23 | 373 | 50 aa | 29% |   | Prophage CP4-57 regulatory protein (AlpA) |
| Phage_antitermQ | PF06530 | 4 | 64 | 123 aa | 46% |   | Phage antitermination protein Q |
| Phage_antiter_Q | PF06323 | 3 | 17 | 223 aa | 51% |   | Phage antitermination protein Q |
| Phage_attach | PF05354 | 3 | 21 | 114 aa | 65% | 1k0h | Phage Head-Tail Attachment |
| Phage_B | PF02304 | 3 | 50 | 117 aa | 56% | 1cd3 | Scaffold protein B |
| Phage_base_V | PF04717 | 8 | 105 | 97 aa | 37% |   | Phage-related baseplate assembly protein |
| Phage_BR0599 | PF09356 | 23 | 70 | 76 aa | 37% |   | Phage conserved hypothetical protein BR0599 |
| Phage_C1 | PF09593 | 27 | 172 | 115 aa | 46% |   | Phage_C1 protein |
| Phage_capsid | PF05065 | 25 | 245 | 269 aa | 20% |   | Phage capsid family |
| Phage_Capsid_P3 | PF09018 | 3 | 7 | 394 aa | 100% |   | P3 major capsid protein |
| Phage_cap_E | PF03864 | 2 | 28 | 331 aa | 54% |   | Phage major capsid protein E |
| Phage_cap_P2 | PF05125 | 5 | 79 | 324 aa | 48% |   | Phage major capsid protein, P2 family |
| Phage_CII | PF05269 | 3 | 47 | 80 aa | 45% |   | Bacteriophage CII protein |
| Phage_CI_repr | PF07022 | 14 | 69 | 61 aa | 27% |   | Bacteriophage CI repressor helix-turn-helix domain |
| Phage_coat | PF09063 | 2 | 2 | 127 aa | 96% | 1dwn | Phage PP7 coat protein |
| Phage_Coat_A | PF05357 | 3 | 7 | 67 aa | 45% | 1g3p | Phage Coat Protein A |
| Phage_Coat_B | PF05356 | 2 | 6 | 76 aa | 74% |   | Phage Coat protein B |
| Phage_Coat_Gp8 | PF05371 | 7 | 12 | 49 aa | 62% | 1fdm | Phage major coat protein, Gp8 |
| Phage_connector | PF05352 | 3 | 5 | 285 aa | 56% | 1jnb | Phage Connector (GP10) |
| Phage_CP76 | PF06892 | 4 | 18 | 161 aa | 45% |   | Phage regulatory protein CII (CP76) |
| Phage_CRI | PF05144 | 6 | 20 | 245 aa | 31% |   | Phage replication protein CRI |
| Phage_DNA_bind | PF02303 | 3 | 27 | 83 aa | 37% | 1gvp | Helix-destabilising protein |
| Phage_E | PF06158 | 8 | 49 | 85 aa | 45% |   | Phage tail protein E |
| Phage_endo_I | PF05367 | 2 | 18 | 136 aa | 62% | 1m0d | Phage endonuclease I |
| Phage_F | PF02305 | 7 | 58 | 433 aa | 62% | 2bpa | Capsid protein (F protein) |
| Phage_fiber | PF03335 | 38 | 243 | 13 aa | 36% |   | Phage tail fibre repeat |
| Phage_fiber_2 | PF03406 | 12 | 178 | 43 aa | 50% |   | Phage tail fibre repeat |
| Phage_fiber_C | PF06820 | 2 | 45 | 63 aa | 62% |   | Putative prophage tail fibre C-terminus |
| Phage_FRD3 | PF05798 | 3 | 24 | 75 aa | 79% |   | Bacteriophage FRD3 protein |
| Phage_G | PF02306 | 3 | 52 | 173 aa | 51% | 2bpa | Major spike protein (G protein) |
| Phage_Gp111 | PF07410 | 2 | 7 | 105 aa | 74% |   | Streptococcus thermophilus bacteriophage Gp111 protein |
| Phage_Gp15 | PF06854 | 3 | 18 | 177 aa | 51% |   | Bacteriophage Gp15 protein |
| Phage_Gp19 | PF09355 | 8 | 22 | 116 aa | 40% |   | Phage protein Gp19/Gp15/Gp42 |
| Phage_GP20 | PF06810 | 5 | 36 | 150 aa | 33% |   | Phage minor structural protein GP20 |
| Phage_GPA | PF05840 | 8 | 64 | 180 aa | 43% |   | Bacteriophage replication gene A protein (GPA) |
| Phage_GPD | PF05954 | 12 | 117 | 296 aa | 31% |   | Phage late control gene D protein (GPD) |
| Phage_GPL | PF05926 | 9 | 75 | 136 aa | 42% |   | Phage head completion protein (GPL) |
| Phage_GPO | PF05929 | 5 | 78 | 258 aa | 47% |   | Phage capsid scaffolding protein (GPO) |
| Phage_HK97_TLTM | PF06120 | 2 | 11 | 278 aa | 74% |   | Tail length tape measure protein |
| Phage_holin | PF04688 | 11 | 56 | 45 aa | 40% |   | Phage lysis protein, holin |
| Phage_holin_1 | PF04531 | 8 | 81 | 79 aa | 48% |   | Bacteriophage holin |
| Phage_holin_2 | PF04550 | 2 | 12 | 91 aa | 61% |   | Phage holin family 2 |
| Phage_holin_3 | PF05106 | 5 | 47 | 97 aa | 38% |   | Phage holin family (Lysis protein S) |
| Phage_holin_4 | PF05105 | 13 | 94 | 123 aa | 29% |   | Holin family |
| Phage_holin_5 | PF06946 | 2 | 8 | 92 aa | 97% |   | Phage holin |
| Phage_H_T_join | PF05521 | 4 | 17 | 108 aa | 37% |   | Phage head-tail joining protein |
| Phage_integrase | PF00589 | 35 | 5890 | 153 aa | 20% | 1crx | Phage integrase family |
| Phage_integr_N | PF02899 | 38 | 1600 | 82 aa | 23% | 3crx | Phage integrase, N-terminal SAM-like domain |
| Phage_integ_N | PF09003 | 10 | 42 | 76 aa | 39% |   | Bacteriophage lambda integrase, N-terminal domain |
| Phage_Lacto_M3 | PF07066 | 2 | 23 | 136 aa | 47% |   | Lactococcus phage M3 protein |
| Phage_lambda_P | PF06992 | 2 | 41 | 213 aa | 43% |   | Replication protein P |
| Phage_lambd_GpG | PF06894 | 7 | 28 | 135 aa | 47% |   | Bacteriophage lambda minor tail protein (GpG) |
| Phage_lysis | PF03245 | 7 | 99 | 148 aa | 49% |   | Bacteriophage lysis protein |
| Phage_lysozyme | PF00959 | 18 | 333 | 108 aa | 25% | 119l | Phage lysozyme |
| Phage_mat-A | PF03863 | 6 | 29 | 284 aa | 38% |   | Phage maturation protein |
| Phage_min_cap | PF05126 | 4 | 20 | 449 aa | 47% |   | Phage minor capsid protein |
| Phage_min_cap2 | PF06152 | 5 | 29 | 293 aa | 35% |   | Phage minor capsid protein 2 |
| Phage_min_tail | PF05939 | 15 | 70 | 108 aa | 36% |   | Phage minor tail protein |
| Phage_Mu_F | PF04233 | 13 | 186 | 113 aa | 22% |   | Phage Mu protein F like protein |
| Phage_Mu_Gam | PF07352 | 4 | 18 | 161 aa | 39% |   | Bacteriophage Mu Gam like protein |
| Phage_Mu_Gp45 | PF06890 | 8 | 46 | 161 aa | 31% |   | Bacteriophage Mu Gp45 protein |
| Phage_Mu_P | PF06893 | 7 | 44 | 309 aa | 33% |   | Bacteriophage Mu P protein |
| Phage_NinH | PF06322 | 4 | 29 | 59 aa | 70% |   | Phage NinH protein |
| Phage_Nu1 | PF07471 | 11 | 39 | 141 aa | 40% | 1j9i | Phage DNA packaging protein Nu1 |
| Phage_Orf51 | PF06194 | 2 | 54 | 80 aa | 90% |   | Phage Conserved Open Reading Frame 51 |
| Phage_P2_GpE | PF06528 | 5 | 33 | 37 aa | 52% |   | Phage P2 GpE |
| Phage_P2_GpU | PF06995 | 14 | 90 | 118 aa | 35% |   | Phage P2 GpU |
| Phage_portal | PF04860 | 26 | 377 | 322 aa | 19% |   | Phage portal protein |
| Phage_portal_2 | PF05136 | 4 | 114 | 327 aa | 28% |   | Phage portal protein, lambda family |
| Phage_pRha | PF09669 | 52 | 110 | 80 aa | 35% |   | Phage regulatory protein Rha (Phage_pRha) |
| Phage_prot_Gp6 | PF05133 | 5 | 101 | 438 aa | 25% |   | Phage portal protein, SPP1 Gp6-like |
| Phage_QLRG | PF05135 | 9 | 48 | 93 aa | 27% |   | Phage QLRG family, putative DNA packaging |
| Phage_rep_O | PF04492 | 7 | 57 | 223 aa | 35% |   | Bacteriophage replication protein O |
| Phage_rep_org_N | PF09681 | 18 | 36 | 118 aa | 34% |   | N-terminal phage replisome organiser (Phage_rep_org_N) |
| Phage_sheath_1 | PF04984 | 11 | 212 | 356 aa | 25% |   | Phage tail sheath protein |
| Phage_T4_gp19 | PF06841 | 3 | 24 | 162 aa | 46% |   | T4-like virus tail tube protein gp19 |
| Phage_T4_Gp20 | PF07230 | 5 | 330 | 204 aa | 64% |   | Bacteriophage T4-like capsid assembly protein (Gp20) |
| Phage_T4_Gp30_7 | PF06919 | 2 | 16 | 121 aa | 98% |   | Phage Gp30.7 protein |
| Phage_T4_gp36 | PF03903 | 3 | 22 | 117 aa | 48% |   | Phage T4 tail fibre |
| Phage_T4_Ndd | PF06591 | 2 | 9 | 150 aa | 89% |   | T4-like phage nuclear disruption protein (Ndd) |
| Phage_T7_Capsid | PF05396 | 2 | 14 | 117 aa | 59% |   | Phage T7 capsid assembly protein |
| Phage_T7_tail | PF03906 | 2 | 44 | 218 aa | 75% |   | Phage T7 tail fibre protein |
| Phage_TAC | PF06222 | 3 | 21 | 125 aa | 55% |   | Phage tail assembly chaperone |
| Phage_tail | PF04630 | 7 | 34 | 196 aa | 37% |   | Phage major tail protein |
| Phage_tail_2 | PF06199 | 7 | 50 | 162 aa | 30% |   | Phage major tail protein 2 |
| Phage_tail_3 | PF08813 | 12 | 24 | 162 aa | 32% |   | Phage tail protein |
| Phage_tail_L | PF05100 | 8 | 80 | 202 aa | 49% |   | Phage minor tail protein L |
| phage_tail_N | PF08400 | 9 | 76 | 128 aa | 54% |   | Prophage tail fibre N-terminal |
| Phage_tail_S | PF05069 | 7 | 75 | 144 aa | 30% |   | Phage virion morphogenesis family |
| Phage_tail_T | PF06223 | 5 | 30 | 99 aa | 54% |   | Minor tail protein T |
| Phage_tail_U | PF06141 | 7 | 27 | 124 aa | 62% |   | Phage minor tail protein U |
| Phage_tail_X | PF05489 | 32 | 111 | 59 aa | 42% |   | Phage Tail Protein X |
| Phage_term_sma | PF07141 | 2 | 7 | 174 aa | 98% |   | Putative bacteriophage terminase small subunit |
| Phage_term_smal | PF05944 | 8 | 75 | 130 aa | 44% |   | Phage small terminase subunit |
| Phage_Treg | PF04761 | 2 | 17 | 56 aa | 73% |   | Lactococcus bacteriophage putative transcription regulator |
| Phage_tube | PF04985 | 6 | 94 | 162 aa | 36% |   | Phage tail tube protein FII |
| Phage_X | PF05155 | 9 | 24 | 91 aa | 28% |   | Phage X family |
| Phage_XkdX | PF09693 | 18 | 67 | 39 aa | 48% |   | Phage uncharacterised protein (Phage_XkdX) |
| PhaG_MnhG_YufB | PF03334 | 12 | 253 | 106 aa | 31% |   | Na+/H+ antiporter subunit |
| PhaP_Bmeg | PF09602 | 3 | 13 | 164 aa | 86% |   | Polyhydroxyalkanoic acid inclusion protein (PhaP_Bmeg) |
| Phasin | PF05597 | 8 | 65 | 125 aa | 36% |   | Poly(hydroxyalcanoate) granule associated protein (phasin) |
| Phasin_2 | PF09361 | 59 | 204 | 97 aa | 21% |   | Phasin protein |
| PHAT | PF09246 | 2 | 5 | 108 aa | 57% | 1oxj | PHAT |
| PHA_gran_rgn | PF09650 | 17 | 34 | 87 aa | 37% |   | Putative polyhydroxyalkanoic acid system protein (PHA_gran_rgn) |
| PHA_synth_III_E | PF09712 | 8 | 17 | 289 aa | 32% |   | Poly(R)-hydroxyalkanoic acid synthase subunit (PHA_synth_III_E) |
| PHB_acc | PF05233 | 21 | 158 | 40 aa | 36% |   | PHB accumulation regulatory domain |
| PHB_acc_N | PF07879 | 12 | 133 | 63 aa | 56% |   | PHB/PHA accumulation regulator DNA-binding domain |
| PHB_depo_C | PF06850 | 12 | 155 | 197 aa | 47% |   | PHB de-polymerase C-terminus |
| PHD | PF00628 | 98 | 2430 | 48 aa | 29% | 1f62 | PHD-finger |
| PhdYeFM | PF02604 | 84 | 527 | 70 aa | 19% |   | Phd_YefM |
| Phenol_Hydrox | PF02332 | 23 | 566 | 174 aa | 35% | 1mhy | Methane/Phenol/Toluene Hydroxylase |
| Phenol_hyd_sub | PF06099 | 8 | 37 | 58 aa | 44% |   | Phenol hydroxylase subunit |
| Phenol_monoox | PF04663 | 7 | 38 | 66 aa | 48% |   | Phenol hydroxylase conserved region |
| Phenyl_P_gamma | PF09662 | 2 | 2 | 84 aa | 86% |   | Phenylphosphate carboxylase gamma subunit (Phenyl_P_gamma) |
| Pheromone | PF08015 | 38 | 71 | 54 aa | 29% |   | Fungal mating-type pheromone |
| Phe_hydrox_dim | PF07976 | 13 | 100 | 163 aa | 27% |   | Phenol hydroxylase, C-terminal dimerisation domain |
| Phe_tRNA-synt_N | PF02912 | 53 | 516 | 71 aa | 34% | 1eiy | Aminoacyl tRNA synthetase class II, N-terminal domain |
| Phe_ZIP | PF08916 | 5 | 22 | 59 aa | 61% |   | Phenylalanine zipper |
| PHF5 | PF03660 | 3 | 56 | 102 aa | 65% |   | PHF5-like protein |
| Phge_rel_HI1409 | PF09714 | 22 | 43 | 105 aa | 28% |   | Phage-related protein (Phge_rel_HI1409) |
| Phg_2220_C | PF09524 | 29 | 56 | 74 aa | 56% |   | Conserved phage C-terminus (Phg_2220_C) |
| Phi-29_GP16_7 | PF06720 | 2 | 4 | 110 aa | 73% |   | Bacteriophage phi-29 early protein GP16.7 |
| Phi-29_GP3 | PF05435 | 3 | 6 | 224 aa | 64% |   | Phi-29 DNA terminal protein GP3 |
| Phi-29_GP4 | PF05464 | 3 | 5 | 125 aa | 66% |   | Phi-29-like late genes activator (early protein GP4) |
| Phi_1 | PF04674 | 8 | 41 | 243 aa | 45% |   | Phosphate-induced protein 1 conserved region |
| PHK_AB | PF05682 | 6 | 83 | 794 aa | 40% |   | Phosphorylase kinase alpha/beta |
| Phlebovirus_G1 | PF07243 | 3 | 62 | 158 aa | 46% |   | Phlebovirus glycoprotein G1 |
| Phlebovirus_G2 | PF07245 | 3 | 27 | 169 aa | 52% |   | Phlebovirus glycoprotein G2 |
| Phlebovirus_N | PF06606 | 5 | 46 | 141 aa | 54% |   | Phlebovirus nucleocapsid (N) protein |
| Phlebovirus_NSM | PF07246 | 3 | 5 | 226 aa | 40% |   | Phlebovirus nonstructural protein NS-M |
| PhnA | PF03831 | 12 | 293 | 55 aa | 59% |   | PhnA protein |
| PhnA_Zn_Ribbon | PF08274 | 34 | 257 | 32 aa | 51% |   | PhnA Zinc-Ribbon |
| PhnG | PF06754 | 10 | 66 | 150 aa | 46% |   | Phosphonate metabolism protein PhnG |
| PhnH | PF05845 | 10 | 87 | 183 aa | 36% |   | Bacterial phosphonate metabolism protein (PhnH) |
| PhnI | PF05861 | 8 | 87 | 354 aa | 56% |   | Bacterial phosphonate metabolism protein (PhnI) |
| PhnJ | PF06007 | 7 | 88 | 271 aa | 66% |   | Phosphonate metabolism protein PhnJ |
| PHO4 | PF01384 | 27 | 659 | 383 aa | 28% |   | Phosphate transporter family |
| PhoD | PF09423 | 8 | 245 | 399 aa | 27% |   | PhoD-like phosphatase |
| PhoH | PF02562 | 6 | 730 | 205 aa | 47% |   | PhoH-like protein |
| PhoQ_Sensor | PF08918 | 7 | 31 | 173 aa | 66% |   | PhoQ Sensor |
| Phosducin | PF02114 | 2 | 121 | 220 aa | 27% | 1b9y | Phosducin |
| Phosphodiest | PF01663 | 71 | 582 | 322 aa | 19% | 1ei6 | Type I phosphodiesterase / nucleotide pyrophosphatase |
| Phosphoesterase | PF04185 | 20 | 375 | 360 aa | 26% |   | Phosphoesterase family |
| Phospholamban | PF04272 | 2 | 9 | 52 aa | 88% | 1fjk | Phospholamban |
| Phospholip_A2_1 | PF00068 | 37 | 676 | 115 aa | 45% | 1bbc | Phospholipase A2 |
| Phospholip_A2_2 | PF05826 | 7 | 52 | 93 aa | 42% | 1poc | Phospholipase A2 |
| Phospholip_A2_3 | PF09056 | 11 | 22 | 107 aa | 42% |   | Prokaryotic phospholipase A2 |
| Phospholip_B | PF04916 | 7 | 80 | 513 aa | 33% |   | Phospholipase B |
| Phosphoprotein | PF00922 | 7 | 82 | 202 aa | 54% |   | Vesiculovirus phosphoprotein |
| Phosphorylase | PF00343 | 9 | 616 | 635 aa | 39% | 1abb | Carbohydrate phosphorylase |
| Phos_pyr_kin | PF08543 | 134 | 767 | 232 aa | 34% | 1jxi | Phosphomethylpyrimidine kinase |
| Photo_RC | PF00124 | 13 | 2035 | 251 aa | 47% | 1prc | Photosynthetic reaction centre protein |
| PhoU | PF01895 | 66 | 1309 | 86 aa | 25% |   | PhoU family |
| PhoU_div | PF01865 | 9 | 249 | 209 aa | 24% |   | Protein of unknown function DUF47 |
| PHP | PF02811 | 70 | 2060 | 195 aa | 20% | 1m65 | PHP domain |
| PHR | PF08005 | 10 | 83 | 148 aa | 44% |   | PHR domain |
| Phycobilisome | PF00502 | 22 | 1468 | 102 aa | 35% | 1cpc | Phycobilisome protein |
| Phycoerythr_ab | PF02972 | 3 | 12 | 55 aa | 58% | 1qgw | Phycoerythrin, alpha/beta chain |
| PhyH | PF05721 | 39 | 553 | 209 aa | 17% |   | Phytanoyl-CoA dioxygenase (PhyH) |
| Phytase | PF02333 | 2 | 66 | 300 aa | 40% | 1qlg | Phytase |
| Phytochelatin | PF05023 | 4 | 61 | 124 aa | 54% |   | Phytochelatin synthase |
| Phytochel_synth | PF04833 | 8 | 68 | 167 aa | 54% |   | Phytochelatin synthetase-like conserved region |
| Phytochrome | PF00360 | 9 | 1252 | 139 aa | 66% |   | Phytochrome region |
| Phytoreo_P8 | PF07124 | 3 | 13 | 424 aa | 70% |   | Phytoreovirus outer capsid protein P8 |
| Phytoreo_Pns | PF05451 | 3 | 6 | 349 aa | 50% |   | Phytoreovirus nonstructural protein Pns10/11 |
| Phytoreo_S7 | PF07236 | 2 | 7 | 506 aa | 56% |   | Phytoreovirus S7 protein |
| Phyto_Pns9_10 | PF05878 | 3 | 11 | 307 aa | 46% |   | Phytoreovirus nonstructural protein Pns9/Pns10 |
| PHZA_PHZB | PF03284 | 3 | 25 | 161 aa | 66% |   | Phenazine biosynthesis protein A/B |
| PhzC-PhzF | PF02567 | 16 | 465 | 269 aa | 26% | 1sdj | Phenazine biosynthesis-like protein |
| PH_2 | PF08458 | 9 | 38 | 108 aa | 41% |   | Plant pleckstrin homology-like region |
| PI-PLC-X | PF00388 | 13 | 540 | 133 aa | 37% | 1gym | Phosphatidylinositol-specific phospholipase C, X domain |
| PI-PLC-Y | PF00387 | 8 | 387 | 106 aa | 42% | 1qas | Phosphatidylinositol-specific phospholipase C, Y domain |
| PI31_Prot_Reg | PF08577 | 18 | 44 | 64 aa | 40% |   | PI31 proteasome regulator |
| PI3Ka | PF00613 | 16 | 252 | 187 aa | 27% | 1qmm | Phosphoinositide 3-kinase family, accessory domain (PIK domain) |
| PI3K_C2 | PF00792 | 25 | 177 | 130 aa | 23% | 1qmm | Phosphoinositide 3-kinase C2 |
| PI3K_p85B | PF02192 | 4 | 51 | 75 aa | 55% |   | PI3-kinase family, p85-binding domain |
| PI3K_rbd | PF00794 | 12 | 107 | 96 aa | 26% | 1qmm | PI3-kinase family, ras-binding domain |
| PI3_PI4_kinase | PF00454 | 44 | 845 | 219 aa | 23% | 1qmm | Phosphatidylinositol 3- and 4-kinase |
| Picorna_P3A | PF06363 | 4 | 13 | 100 aa | 62% |   | Picornaviridae P3A protein |
| Pico_P1A | PF02226 | 9 | 2220 | 67 aa | 65% | 1aym | Picornavirus coat protein (VP4) |
| Pico_P2A | PF00947 | 9 | 905 | 92 aa | 65% | 2hrv | Picornavirus core protein 2A |
| Pico_P2B | PF01552 | 10 | 485 | 98 aa | 68% |   | Picornavirus 2B protein |
| PID | PF00640 | 25 | 495 | 124 aa | 21% | 1shc | Phosphotyrosine interaction domain (PTB/PID) |
| PIG-F | PF06699 | 4 | 49 | 187 aa | 29% |   | GPI biosynthesis protein family Pig-F |
| PIG-L | PF02585 | 94 | 585 | 135 aa | 24% | 1uan | GlcNAc-PI de-N-acetylase |
| PIG-P | PF08510 | 20 | 53 | 125 aa | 30% |   | PIG-P |
| PIG-U | PF06728 | 5 | 55 | 172 aa | 39% |   | GPI transamidase subunit PIG-U |
| PIG-X | PF08320 | 11 | 28 | 189 aa | 29% |   | PIG-X / PBN1 |
| PIGA | PF08288 | 13 | 63 | 88 aa | 55% |   | PIGA (GPI anchor biosynthesis) |
| Pigment_DH | PF06324 | 6 | 22 | 18 aa | 79% |   | Pigment-dispersing hormone (PDH) |
| PigN | PF04987 | 6 | 49 | 396 aa | 27% |   | Phosphatidylinositolglycan class N (PIG-N) |
| PIH1 | PF08190 | 15 | 52 | 260 aa | 26% |   | pre-RNA processing PIH1/Nop17 |
| Pilin | PF00114 | 23 | 297 | 112 aa | 26% | 1paj | Pilin (bacterial filament) |
| Pili_assembly_C | PF02753 | 19 | 426 | 77 aa | 25% | 3dpa | Gram-negative pili assembly chaperone, C-terminal domain |
| Pili_assembly_N | PF00345 | 20 | 466 | 120 aa | 35% | 3dpa | Gram-negative pili assembly chaperone, N-terminal domain |
| PilM | PF07419 | 4 | 28 | 127 aa | 34% |   | PilM |
| PilN | PF05137 | 11 | 313 | 160 aa | 19% |   | Fimbrial assembly protein (PilN) |
| PilO | PF04350 | 3 | 120 | 144 aa | 37% |   | Pilus assembly protein, PilO |
| PilP | PF04351 | 3 | 116 | 138 aa | 33% |   | Pilus assembly protein, PilP |
| PilS | PF08805 | 18 | 42 | 136 aa | 32% | 1q5f | PilS N terminal |
| Pilus_CpaD | PF09476 | 28 | 44 | 173 aa | 32% |   | Pilus biogenesis CpaD protein (pilus_cpaD) |
| PilZ | PF07238 | 192 | 1121 | 101 aa | 16% |   | PilZ domain |
| PIN | PF01850 | 146 | 1410 | 123 aa | 17% | 1o4w | PIN domain |
| Pinin_SDK_memA | PF04696 | 2 | 41 | 127 aa | 43% |   | pinin/SDK/memA/ protein conserved region |
| Pinin_SDK_N | PF04697 | 3 | 20 | 129 aa | 82% |   | pinin/SDK conserved region |
| PIP5K | PF01504 | 16 | 323 | 262 aa | 29% | 1bo1 | Phosphatidylinositol-4-phosphate 5-Kinase |
| PipA | PF07108 | 2 | 12 | 208 aa | 84% |   | PipA protein |
| PIR | PF00399 | 17 | 170 | 17 aa | 60% |   | Yeast PIR protein repeat |
| Pirin | PF02678 | 52 | 790 | 108 aa | 36% | 1j1l | Pirin |
| Pirin_C | PF05726 | 38 | 488 | 103 aa | 28% | 1j1l | Pirin C-terminal cupin domain |
| Piwi | PF02171 | 22 | 364 | 292 aa | 30% |   | Piwi domain |
| PK | PF00224 | 13 | 1025 | 321 aa | 42% | 1pkn | Pyruvate kinase, barrel domain |
| PKD | PF00801 | 103 | 1594 | 73 aa | 29% | 1b4r | PKD domain |
| PKD_channel | PF08016 | 13 | 92 | 346 aa | 29% |   | Polycystin cation channel |
| PKI | PF02827 | 4 | 37 | 67 aa | 47% | 2cpk | cAMP-dependent protein kinase inhibitor |
| pKID | PF02173 | 11 | 112 | 40 aa | 54% | 1kdx | pKID domain |
| Pkinase | PF00069 | 54 | 25281 | 224 aa | 24% | 1apm | Protein kinase domain |
| Pkinase_C | PF00433 | 170 | 966 | 47 aa | 27% | 1apk | Protein kinase C terminal domain |
| Pkinase_Tyr | PF07714 | 152 | 4606 | 180 aa | 29% | 1apm | Protein tyrosine kinase |
| PkinA_anch | PF03832 | 8 | 56 | 31 aa | 41% |   | Protein kinase A anchor |
| Pkip-1 | PF06878 | 9 | 29 | 161 aa | 34% |   | Pkip-1 protein |
| Pkr1 | PF08636 | 10 | 24 | 71 aa | 48% |   | ER protein Pkr1 |
| PK_C | PF02887 | 13 | 880 | 111 aa | 30% | 1pkn | Pyruvate kinase, alpha/beta domain |
| PLA1 | PF02253 | 4 | 134 | 259 aa | 36% | 1qd6 | Phospholipase A1 |
| PLA2G12 | PF06951 | 2 | 27 | 157 aa | 50% |   | Group XII secretory phospholipase A2 precursor (PLA2G12) |
| PLA2_B | PF01735 | 16 | 160 | 399 aa | 30% | 1rlw | Lysophospholipase catalytic domain |
| PLA2_inh | PF02988 | 5 | 79 | 81 aa | 49% |   | Phospholipase A2 inhibitor |
| PLAC | PF08686 | 23 | 101 | 34 aa | 37% |   | PLAC (protease and lacunin) domain |
| PLAC8 | PF04749 | 40 | 193 | 102 aa | 26% |   | PLAC8 family |
| Planc_extracel | PF07595 | 33 | 35 | 28 aa | 32% |   | Planctomycete extracellular |
| Plant_NMP1 | PF06694 | 2 | 13 | 225 aa | 68% |   | Plant nuclear matrix protein 1 (NMP1) |
| Plant_tran | PF04827 | 8 | 108 | 100 aa | 53% |   | Plant transposon protein |
| Plant_vir_prot | PF01307 | 28 | 218 | 102 aa | 32% |   | Plant viral movement protein |
| Plasmid_killer | PF05015 | 8 | 185 | 83 aa | 38% |   | Plasmid maintenance system killer protein |
| Plasmid_parti | PF01672 | 20 | 72 | 79 aa | 43% |   | Putative plasmid partition protein |
| Plasmid_RAQPRD | PF09686 | 15 | 51 | 79 aa | 42% |   | Plasmid protein of unknown function (Plasmid_RAQPRD) |
| Plasmid_stabil | PF05016 | 161 | 902 | 84 aa | 17% |   | Plasmid stabilisation system protein |
| Plasmid_Txe | PF06769 | 13 | 139 | 76 aa | 48% |   | Plasmid encoded toxin Txe |
| Plasmodium_HRP | PF05403 | 2 | 97 | 187 aa | 71% |   | Plasmodium histidine-rich protein (HRPII/III) |
| Plasmodium_Vir | PF05795 | 11 | 81 | 250 aa | 25% |   | Plasmodium vivax Vir protein |
| Plasmod_dom_1 | PF09715 | 6 | 9 | 69 aa | 42% |   | Plasmodium protein of unknown function (Plasmod_dom_1) |
| Plasmod_MYXSPDY | PF07981 | 37 | 75 | 16 aa | 78% |   | Plasmodium repeat_MYXSPDY |
| Plasmod_Pvs28 | PF06247 | 5 | 78 | 213 aa | 49% |   | Plasmodium ookinete surface protein Pvs28 |
| PLAT | PF01477 | 71 | 480 | 108 aa | 18% | 1lpa | PLAT/LH2 domain |
| PLATZ | PF04640 | 13 | 47 | 112 aa | 54% |   | PLATZ transcription factor |
| PLC-beta_C | PF08703 | 6 | 31 | 171 aa | 46% | 1jad | PLC-beta C terminal |
| PLDc | PF00614 | 48 | 2898 | 28 aa | 30% | 1byr | Phospholipase D Active site motif |
| PLD_envelope | PF08371 | 18 | 204 | 153 aa | 39% |   | Phospholipase D/viral envelope |
| Plectin | PF00681 | 40 | 789 | 43 aa | 34% | 1lm7 | Plectin repeat |
| Plexin_cytopl | PF08337 | 12 | 98 | 411 aa | 50% |   | Plexin cytoplasmic region |
| PLRV_ORF5 | PF01690 | 6 | 127 | 420 aa | 38% |   | Potato leaf roll virus readthrough protein |
| PLU-1 | PF08429 | 16 | 97 | 297 aa | 35% |   | PLU-1-like protein |
| Plug | PF07715 | 747 | 5432 | 108 aa | 21% | 1fi1 | TonB-dependent Receptor Plug Domain |
| Plus-3 | PF03126 | 14 | 67 | 105 aa | 28% |   | Plus-3 domain |
| PmbA_TldD | PF01523 | 24 | 858 | 291 aa | 23% |   | Putative modulator of DNA gyrase |
| PMBR | PF09373 | 49 | 65 | 32 aa | 22% |   | Pseudomurein-binding repeat |
| PMC2NT | PF08066 | 14 | 53 | 90 aa | 31% |   | PMC2NT (NUC016) domain |
| PMEI | PF04043 | 125 | 360 | 149 aa | 19% | 1rj1 | Plant invertase/pectin methylesterase inhibitor |
| PMG | PF05287 | 4 | 34 | 168 aa | 42% |   | PMG protein |
| PMI_typeI | PF01238 | 8 | 369 | 319 aa | 26% | 1pmi | Phosphomannose isomerase type I |
| PMM | PF03332 | 9 | 98 | 203 aa | 52% |   | Eukaryotic phosphomannomutase |
| PMP1_2 | PF08114 | 2 | 2 | 41 aa | 98% |   | ATPase proteolipid family |
| PMP22_Claudin | PF00822 | 13 | 481 | 164 aa | 28% |   | PMP-22/EMP/MP20/Claudin family |
| PMSR | PF01625 | 17 | 931 | 154 aa | 40% | 1fva | Peptide methionine sulfoxide reductase |
| PMT | PF02366 | 24 | 662 | 230 aa | 18% |   | Dolichyl-phosphate-mannose-protein mannosyltransferase |
| Pneumovirus_M2 | PF06436 | 4 | 43 | 156 aa | 59% |   | Pneumovirus matrix protein 2 (M2) |
| Pneumo_att_G | PF05539 | 3 | 22 | 247 aa | 58% |   | Pneumovirinae attachment membrane glycoprotein G |
| Pneumo_M2 | PF07380 | 3 | 8 | 89 aa | 57% |   | Pneumovirus M2 protein |
| Pneumo_matrix | PF03393 | 9 | 85 | 178 aa | 67% |   | Pneumovirus matrix protein |
| Pneumo_ncap | PF03246 | 4 | 426 | 135 aa | 52% |   | Pneumovirus nucleocapsid protein |
| Pneumo_NS1 | PF03438 | 2 | 17 | 136 aa | 80% |   | Pneumovirus NS1 protein |
| Pneumo_phosprot | PF02478 | 2 | 719 | 90 aa | 86% |   | Pneumovirus phosphoprotein |
| PngaseF_C | PF09113 | 2 | 3 | 171 aa | 71% | 1pgs | Peptide-N-glycosidase F, C terminal |
| PngaseF_N | PF09112 | 2 | 3 | 136 aa | 69% | 1pgs | Peptide-N-glycosidase F, N terminal |
| PNK3P | PF08645 | 35 | 199 | 150 aa | 28% |   | Polynucleotide kinase 3 phosphatase |
| PNPase | PF03726 | 23 | 567 | 82 aa | 28% | 1e3p | Polyribonucleotide nucleotidyltransferase, RNA binding domain |
| PNP_UDP_1 | PF01048 | 16 | 1087 | 221 aa | 23% | 1ecp | Phosphorylase family |
| PNTB | PF02233 | 10 | 412 | 418 aa | 49% | 1d4o | NAD(P) transhydrogenase beta subunit |
| Podoplanin | PF05808 | 4 | 8 | 167 aa | 57% |   | Podoplanin |
| Podovirus_Gp16 | PF05894 | 3 | 6 | 287 aa | 51% |   | Podovirus DNA encapsidation protein (Gp16) |
| PolC_DP2 | PF03833 | 6 | 31 | 891 aa | 47% |   | DNA polymerase II large subunit DP2 |
| Pollen_allerg_1 | PF01357 | 53 | 499 | 75 aa | 43% | 1who | Pollen allergen |
| Pollen_allerg_2 | PF01620 | 7 | 45 | 131 aa | 59% | 1nlx | Ribonuclease (pollen allergen) |
| Pollen_Ole_e_I | PF01190 | 9 | 115 | 121 aa | 30% |   | Pollen proteins Ole e I family |
| POLO_box | PF00659 | 13 | 193 | 64 aa | 28% | 1q4k | POLO box duplicated region |
| PolyA_pol | PF01743 | 21 | 930 | 124 aa | 34% | 1ou5 | Poly A polymerase head domain |
| PolyG_pol | PF01518 | 4 | 43 | 365 aa | 56% |   | Sigma NS protein |
| Polyhedrin | PF00738 | 17 | 214 | 197 aa | 72% |   | Polyhedrin |
| Polyketide_cyc | PF03364 | 101 | 908 | 120 aa | 16% |   | Polyketide cyclase / dehydrase and lipid transport |
| Polyoma_agno | PF01736 | 3 | 116 | 57 aa | 83% |   | Polyomavirus agnoprotein |
| Polyoma_coat | PF00718 | 8 | 1839 | 110 aa | 63% | 1sva | Polyomavirus coat protein |
| Polyoma_coat2 | PF00761 | 8 | 264 | 249 aa | 65% | 1cn3 | Polyomavirus coat protein |
| Polyoma_lg_T_C | PF06431 | 3 | 1536 | 96 aa | 85% | 1n25 | Polyomavirus large T antigen C-terminus |
| polyprenyl_synt | PF00348 | 16 | 1834 | 249 aa | 27% | 1fps | Polyprenyl synthetase |
| Polysacc_deac_1 | PF01522 | 106 | 1950 | 122 aa | 21% | 1ny1 | Polysaccharide deacetylase |
| Polysacc_deac_2 | PF04748 | 9 | 164 | 206 aa | 33% |   | Divergent polysaccharide deacetylase |
| Polysacc_synt | PF01943 | 31 | 1485 | 275 aa | 14% |   | Polysaccharide biosynthesis protein |
| Polysacc_synt_2 | PF02719 | 79 | 536 | 281 aa | 43% |   | Polysaccharide biosynthesis protein |
| Polysacc_syn_2C | PF08485 | 20 | 80 | 48 aa | 55% |   | Polysaccharide biosynthesis protein C-terminal |
| Poly_export | PF02563 | 19 | 697 | 116 aa | 28% |   | Polysaccharide biosynthesis/export protein |
| Pol_alpha_B_N | PF08418 | 10 | 45 | 230 aa | 27% |   | DNA polymerase alpha subunit B N-terminal |
| Pombe_5TM | PF09437 | 2 | 6 | 198 aa | 54% |   | Pombe specific 5TM protein |
| Ponericin | PF07442 | 3 | 5 | 29 aa | 70% |   | Ponericin |
| POP1 | PF06978 | 5 | 51 | 167 aa | 32% |   | Ribonucleases P/MRP protein subunit POP1 |
| Popeye | PF04831 | 2 | 43 | 146 aa | 51% |   | Popeye protein conserved region |
| POPLD | PF08170 | 10 | 45 | 95 aa | 31% |   | POPLD (NUC188) domain |
| POR | PF01558 | 33 | 834 | 174 aa | 22% | 2pda | Pyruvate ferredoxin/flavodoxin oxidoreductase |
| Porin_1 | PF00267 | 18 | 2347 | 309 aa | 26% | 1mpf | Gram-negative porin |
| Porin_2 | PF02530 | 16 | 243 | 308 aa | 26% |   | Porin subfamily |
| Porin_3 | PF01459 | 19 | 259 | 252 aa | 24% |   | Eukaryotic porin |
| Porin_OmpG | PF09381 | 4 | 7 | 301 aa | 91% |   | Outer membrane protein G (OmpG) |
| Porin_O_P | PF07396 | 14 | 154 | 350 aa | 19% |   | Phosphate-selective porin O and P |
| Porphobil_deam | PF01379 | 21 | 626 | 208 aa | 46% | 1pda | Porphobilinogen deaminase, dipyromethane cofactor binding domain |
| Porphobil_deamC | PF03900 | 21 | 585 | 76 aa | 34% | 1pda | Porphobilinogen deaminase, C-terminal domain |
| Porph_ging | PF09697 | 6 | 14 | 65 aa | 43% |   | Protein of unknown function (Porph_ging) |
| POR_N | PF01855 | 32 | 804 | 197 aa | 31% | 2pda | Pyruvate flavodoxin/ferredoxin oxidoreductase, thiamine diP-binding domain |
| Potass_KdpF | PF09604 | 30 | 75 | 25 aa | 40% |   | F subunit of K+-transporting ATPase (Potass_KdpF) |
| potato_inhibit | PF00280 | 13 | 126 | 60 aa | 44% | 1tin | Potato inhibitor I family |
| Potex_coat | PF06184 | 2 | 45 | 148 aa | 92% |   | Potexvirus coat protein |
| POTRA_1 | PF08478 | 93 | 468 | 69 aa | 22% |   | POTRA domain, FtsQ-type |
| POTRA_2 | PF08479 | 60 | 338 | 76 aa | 24% |   | POTRA domain, ShlB-type |
| Poty_coat | PF00767 | 33 | 3106 | 209 aa | 57% |   | Potyvirus coat protein |
| Poty_PP | PF08440 | 37 | 605 | 200 aa | 51% |   | Potyviridae polyprotein |
| Pou | PF00157 | 10 | 336 | 69 aa | 66% | 1oct | Pou domain - N-terminal to homeobox domain |
| POX | PF07526 | 27 | 78 | 131 aa | 39% |   | Associated with HOX |
| Poxvirus_B22R | PF04395 | 7 | 78 | 945 aa | 39% |   | Poxvirus B22R protein |
| Pox_A11 | PF05061 | 4 | 41 | 299 aa | 61% |   | Poxvirus A11 Protein |
| Pox_A12 | PF04651 | 5 | 43 | 188 aa | 60% |   | Poxvirus A12 protein |
| Pox_A14 | PF05767 | 5 | 37 | 90 aa | 58% |   | Poxvirus virion envelope protein A14 |
| Pox_A21 | PF05323 | 6 | 39 | 112 aa | 63% |   | Poxvirus A21 Protein |
| Pox_A22 | PF04848 | 7 | 40 | 144 aa | 65% |   | Poxvirus A22 protein |
| Pox_A28 | PF04584 | 8 | 49 | 137 aa | 54% |   | Poxvirus A28 family |
| Pox_A30L_A26L | PF06086 | 3 | 41 | 211 aa | 81% |   | Orthopoxvirus A26L/A30L protein |
| Pox_A31 | PF05771 | 3 | 42 | 126 aa | 70% |   | Poxvirus A31 protein |
| Pox_A32 | PF04665 | 6 | 52 | 229 aa | 64% |   | Poxvirus A32 protein |
| Pox_A3L | PF05288 | 5 | 38 | 70 aa | 59% |   | Poxvirus A3L Protein |
| Pox_A46 | PF06225 | 18 | 175 | 135 aa | 27% |   | Poxvirus A4/B15 family |
| Pox_A51 | PF04948 | 4 | 39 | 288 aa | 56% |   | Poxvirus A51 protein |
| Pox_A6 | PF04924 | 5 | 42 | 370 aa | 62% |   | Poxvirus A6 protein |
| Pox_A8 | PF04745 | 5 | 46 | 258 aa | 59% |   | VITF-3 subunit protein |
| Pox_A9 | PF04835 | 5 | 42 | 53 aa | 65% |   | A9 protein conserved region |
| Pox_Ag35 | PF03286 | 3 | 48 | 210 aa | 58% |   | Pox virus Ag35 surface protein |
| Pox_A_type_inc | PF04508 | 27 | 337 | 23 aa | 37% |   | Viral A-type inclusion protein repeat |
| Pox_C4_C10 | PF03336 | 5 | 75 | 258 aa | 48% |   | Poxvirus C4/C10 protein |
| Pox_C7_F8A | PF03287 | 10 | 44 | 149 aa | 44% |   | Poxvirus C7/F8A protein |
| Pox_D2 | PF04701 | 5 | 38 | 133 aa | 48% |   | Pox virus D2 protein |
| Pox_D3 | PF04580 | 5 | 40 | 232 aa | 49% |   | Chordopoxvirinae D3 protein |
| Pox_D5 | PF03288 | 15 | 124 | 88 aa | 22% | 1ka8 | Poxvirus D5 protein-like |
| Pox_E10 | PF04805 | 6 | 42 | 69 aa | 72% |   | E10-like protein conserved region |
| Pox_E2 | PF04497 | 5 | 54 | 700 aa | 56% |   | Poxvirus E2 protein |
| Pox_E5R | PF03111 | 3 | 46 | 287 aa | 64% |   | E5R poxvirus protein family |
| Pox_E6 | PF04656 | 5 | 50 | 545 aa | 68% |   | Pox virus E6 protein |
| Pox_E8 | PF03394 | 10 | 43 | 235 aa | 74% |   | Poxvirus E8 protein |
| Pox_F11 | PF04943 | 4 | 41 | 326 aa | 55% |   | Poxvirus F11 protein |
| Pox_F12L | PF03337 | 5 | 61 | 609 aa | 53% | 1mg2 | Poxvirus F12L protein |
| Pox_F15 | PF04596 | 5 | 40 | 136 aa | 66% |   | Poxvirus protein F15 |
| Pox_F16 | PF04708 | 4 | 39 | 224 aa | 64% |   | Poxvirus F16 protein |
| Pox_F17 | PF04767 | 5 | 41 | 94 aa | 63% |   | DNA-binding 11 kDa phosphoprotein |
| Pox_G5 | PF04599 | 7 | 51 | 381 aa | 47% |   | Poxvirus G5 protein |
| Pox_G7 | PF05503 | 6 | 42 | 359 aa | 58% |   | Poxvirus G7-like |
| Pox_H7 | PF04787 | 5 | 41 | 142 aa | 59% |   | Late protein H7 |
| Pox_I1 | PF03289 | 4 | 52 | 301 aa | 74% |   | Poxvirus protein I1 |
| Pox_I3 | PF04661 | 6 | 44 | 257 aa | 56% |   | Poxvirus I3 ssDNA-binding protein |
| Pox_I5 | PF04713 | 6 | 38 | 76 aa | 47% |   | Poxvirus protein I5 |
| Pox_I6 | PF04595 | 10 | 79 | 310 aa | 41% |   | Poxvirus I6-like family |
| Pox_IFNR | PF04903 | 2 | 45 | 263 aa | 72% |   | Poxvirus interferon gamma receptor |
| Pox_int_trans | PF05718 | 6 | 42 | 374 aa | 66% |   | Poxvirus intermediate transcription factor |
| Pox_J1 | PF03338 | 5 | 51 | 142 aa | 58% |   | Poxvirus J1 protein |
| Pox_L3_FP4 | PF03339 | 5 | 48 | 312 aa | 56% |   | Poxvirus L3/FP4 protein |
| Pox_L5 | PF04872 | 5 | 45 | 77 aa | 53% |   | Poxvirus L5 protein family |
| Pox_LP_H2 | PF03356 | 5 | 59 | 182 aa | 60% |   | Viral late protein H2 |
| Pox_M2 | PF04887 | 3 | 33 | 194 aa | 80% |   | Poxvirus M2 protein |
| Pox_MCEL | PF03291 | 11 | 121 | 382 aa | 31% |   | mRNA capping enzyme |
| Pox_mRNA-cap | PF03341 | 5 | 41 | 276 aa | 70% |   | Poxvirus mRNA capping enzyme, small subunit |
| Pox_N2L | PF05747 | 3 | 45 | 167 aa | 55% |   | Poxvirus N2L protein |
| Pox_O1 | PF04638 | 5 | 56 | 584 aa | 57% |   | Pox virus protein O1 |
| Pox_P21 | PF05313 | 6 | 41 | 189 aa | 56% |   | Poxvirus P21 membrane protein |
| Pox_P35 | PF03213 | 5 | 80 | 281 aa | 45% |   | Poxvirus P35 protein |
| Pox_P4A | PF03395 | 4 | 59 | 801 aa | 62% |   | Poxvirus P4A protein |
| Pox_P4B | PF03292 | 5 | 142 | 313 aa | 45% |   | Poxvirus P4B major core protein |
| Pox_polyA_pol | PF03296 | 3 | 53 | 448 aa | 63% |   | Poxvirus poly(A) polymerase catalytic subunit |
| Pox_Rap94 | PF03294 | 5 | 69 | 603 aa | 66% |   | RNA polymerase-associated transcription specificity factor, Rap94 |
| Pox_Rif | PF03340 | 7 | 49 | 517 aa | 67% |   | Poxvirus rifampicin resistance protein |
| Pox_RNA_pol | PF03293 | 4 | 39 | 160 aa | 71% |   | Poxvirus DNA-directed RNA polymerase, 18 kD subunit |
| Pox_RNA_Pol_19 | PF05320 | 6 | 38 | 165 aa | 64% |   | Poxvirus DNA-directed RNA polymerase 19 kDa subunit |
| Pox_RNA_Pol_22 | PF05273 | 5 | 39 | 180 aa | 68% |   | Poxvirus RNA polymerase 22 kDa subunit |
| Pox_RNA_pol_35 | PF03396 | 9 | 56 | 275 aa | 61% |   | Poxvirus DNA-directed RNA polymerase, 35 kD subunit |
| Pox_ser-thr_kin | PF05445 | 9 | 57 | 429 aa | 69% |   | Poxvirus serine/threonine protein kinase |
| Pox_T4_C | PF04490 | 4 | 21 | 143 aa | 40% |   | Poxvirus T4 protein, C terminus |
| Pox_T4_N | PF04491 | 3 | 29 | 45 aa | 58% |   | Poxvirus T4 protein, N terminus |
| Pox_TAA1 | PF03295 | 4 | 39 | 108 aa | 67% |   | Poxvirus trans-activator protein A1 |
| Pox_TAP | PF03355 | 3 | 36 | 257 aa | 81% |   | Viral Trans-Activator Protein |
| Pox_VERT_large | PF04441 | 7 | 44 | 692 aa | 69% |   | Poxvirus early transcription factor (VETF), large subunit |
| Pox_vIL-18BP | PF05566 | 2 | 26 | 120 aa | 89% |   | Orthopoxvirus interleukin 18 binding protein |
| Pox_VLTF3 | PF04947 | 18 | 63 | 165 aa | 43% |   | Poxvirus Late Transcription Factor VLTF3 like |
| Pox_VP8_L4R | PF04498 | 5 | 41 | 215 aa | 63% |   | Poxvirus nucleic acid binding protein VP8 / L4R |
| PP-binding | PF00550 | 71 | 7380 | 64 aa | 25% | 1acp | Phosphopantetheine attachment site |
| PP1 | PF07430 | 3 | 7 | 171 aa | 72% |   | Phloem filament protein PP1 |
| PP1_inhibitor | PF05361 | 4 | 41 | 122 aa | 47% | 1k5o | PKC-activated protein phosphatase-1 inhibitor |
| PP2C | PF00481 | 32 | 1561 | 255 aa | 22% | 1a6q | Protein phosphatase 2C |
| PP2C_C | PF07830 | 6 | 63 | 73 aa | 58% | 1a6q | Protein serine/threonine phosphatase 2C, C-terminal domain |
| PPAK | PF02818 | 31 | 178 | 27 aa | 61% |   | PPAK motif |
| PPC | PF04151 | 151 | 620 | 71 aa | 19% | 1nqd | Bacterial pre-peptidase C-terminal domain |
| PPDK_N | PF01326 | 93 | 807 | 318 aa | 29% | 1dik | Pyruvate phosphate dikinase, PEP/pyruvate binding domain |
| PPE | PF00823 | 8 | 431 | 156 aa | 46% |   | PPE family |
| PPI_Ypi1 | PF07491 | 10 | 60 | 56 aa | 45% |   | Protein phosphatase inhibitor |
| PPK2 | PF03976 | 10 | 458 | 226 aa | 38% |   | Polyphosphate kinase 2 |
| PPM_N | PF08342 | 33 | 257 | 95 aa | 46% |   | Phosphopentomutase N-terminal |
| PPP4R2 | PF09184 | 9 | 41 | 206 aa | 41% |   | PPP4R2 |
| PPP5 | PF08321 | 11 | 92 | 91 aa | 31% |   | PPP5 |
| PPR | PF01535 | 558 | 15487 | 34 aa | 19% |   | PPR repeat |
| PPTA | PF01239 | 143 | 758 | 30 aa | 24% | 1ft1 | Protein prenyltransferase alpha subunit repeat |
| PPV_E1_C | PF00519 | 27 | 207 | 354 aa | 52% | 1f08 | Papillomavirus helicase |
| PPV_E1_N | PF00524 | 26 | 166 | 125 aa | 38% |   | E1 Protein, N terminal domain |
| PPV_E2_C | PF00511 | 23 | 189 | 76 aa | 41% | 2bop | E2 (early) protein, C terminal |
| PPV_E2_N | PF00508 | 24 | 184 | 194 aa | 44% | 2bop | E2 (early) protein, N terminal |
| Ppx-GppA | PF02541 | 10 | 645 | 285 aa | 26% |   | Ppx/GppA phosphatase family |
| PP_kinase | PF02503 | 8 | 528 | 586 aa | 40% |   | Polyphosphate kinase |
| PP_M1 | PF03012 | 8 | 461 | 203 aa | 71% |   | Phosphoprotein |
| PQ-loop | PF04193 | 32 | 603 | 62 aa | 21% |   | PQ loop repeat |
| PqiA | PF04403 | 12 | 400 | 196 aa | 26% |   | Paraquat-inducible protein A |
| PQQ | PF01011 | 131 | 2493 | 37 aa | 23% | 4aah | PQQ enzyme repeat |
| PqqA | PF08042 | 11 | 36 | 20 aa | 56% |   | PqqA family |
| PqqD | PF05402 | 8 | 89 | 79 aa | 33% |   | Coenzyme PQQ synthesis protein D (PqqD) |
| PRA-CH | PF01502 | 18 | 530 | 75 aa | 49% |   | Phosphoribosyl-AMP cyclohydrolase |
| PRA-PH | PF01503 | 17 | 506 | 88 aa | 39% |   | Phosphoribosyl-ATP pyrophosphohydrolase |
| PRA1 | PF03208 | 20 | 132 | 144 aa | 24% |   | PRA1 family protein |
| PRAI | PF00697 | 23 | 608 | 193 aa | 31% | 1pii | N-(5'phosphoribosyl)anthranilate (PRA) isomerase |
| PRANC | PF09372 | 77 | 269 | 93 aa | 23% |   | PRANC domain |
| PRC | PF05239 | 120 | 1076 | 77 aa | 20% | 1yst | PRC-barrel domain |
| PRCH | PF03967 | 3 | 32 | 131 aa | 46% | 1yst | Photosynthetic reaction centre, H-chain N-terminal region |
| PRD | PF00874 | 231 | 1116 | 90 aa | 20% | 1h99 | PRD domain |
| Prd1-P2 | PF09214 | 2 | 7 | 555 aa | 90% | 1n7v | Bacteriophage Prd1, adsorption protein P2 |
| PRD_Mga | PF08270 | 13 | 115 | 198 aa | 29% |   | M protein trans-acting positive regulator (MGA) PRD domain |
| Pre-SET | PF05033 | 23 | 199 | 103 aa | 30% | 1ml9 | Pre-SET motif |
| Prefoldin | PF02996 | 37 | 255 | 113 aa | 18% | 1fxk | Prefoldin subunit |
| Prefoldin_2 | PF01920 | 58 | 296 | 100 aa | 19% | 1fxk | Prefoldin subunit |
| PRELI | PF04707 | 16 | 150 | 153 aa | 29% |   | PRELI-like family |
| Prenylcys_lyase | PF07156 | 5 | 35 | 344 aa | 45% |   | Prenylcysteine lyase |
| Prenyltrans | PF00432 | 69 | 2229 | 42 aa | 23% | 1sqc | Prenyltransferase and squalene oxidase repeat |
| Prenyltransf | PF01255 | 9 | 773 | 216 aa | 40% | 1jp3 | Putative undecaprenyl diphosphate synthase |
| Presenilin | PF01080 | 6 | 85 | 331 aa | 50% |   | Presenilin |
| Preseq_ALAS | PF09029 | 3 | 21 | 92 aa | 63% |   | 5-aminolevulinate synthase presequence |
| PRE_C2HC | PF07530 | 11 | 24 | 64 aa | 34% |   | Associated with zinc fingers |
| PRF | PF06875 | 2 | 211 | 213 aa | 74% |   | Plethodontid receptivity factor PRF |
| PrgH | PF09480 | 8 | 29 | 326 aa | 30% |   | Type III secretion system protein PrgH-EprH (PrgH) |
| PrgU | PF09627 | 2 | 6 | 111 aa | 69% |   | PrgU-like protein |
| PRiA4_ORF3 | PF07929 | 18 | 105 | 160 aa | 31% |   | Plasmid pRiA4b ORF-3-like protein |
| Pribosyltran | PF00156 | 126 | 5606 | 123 aa | 20% | 1sto | Phosphoribosyl transferase domain |
| priB_priC | PF07445 | 5 | 41 | 170 aa | 42% |   | Primosomal replication protein priB and priC |
| PriCT_1 | PF08708 | 69 | 224 | 73 aa | 23% |   | Primase C terminal 1 (PriCT-1) |
| PriCT_2 | PF08707 | 31 | 77 | 75 aa | 29% |   | Primase C terminal 2 (PriCT-2) |
| Prim-Pol | PF09250 | 48 | 135 | 171 aa | 21% | 1ro2 | Bifunctional DNA primase/polymerase, N-terminal |
| Prim_Zn_Ribbon | PF08273 | 18 | 73 | 37 aa | 44% |   | Zinc-binding domain of primase-helicase |
| Prion | PF00377 | 7 | 424 | 108 aa | 77% | 2prp | Prion/Doppel alpha-helical domain |
| Prion_octapep | PF03991 | 5 | 1808 | 7 aa | 98% | 1oei | Copper binding octapeptide repeat |
| Prismane | PF03063 | 32 | 308 | 530 aa | 31% | 1e1d | Prismane/CO dehydrogenase family |
| PRK | PF00485 | 12 | 1228 | 140 aa | 32% | 1a7j | Phosphoribulokinase / Uridine kinase family |
| PrkA | PF06798 | 7 | 182 | 251 aa | 48% |   | PrkA serine protein kinase C-terminal domain |
| PRKCSH | PF07915 | 26 | 122 | 67 aa | 27% |   | Glucosidase II beta subunit-like protein |
| PrmA | PF06325 | 31 | 593 | 233 aa | 34% | 1ufk | Ribosomal protein L11 methyltransferase (PrmA) |
| PRMT5 | PF05185 | 7 | 64 | 444 aa | 41% |   | PRMT5 arginine-N-methyltransferase |
| Pro-kuma_activ | PF09286 | 64 | 189 | 138 aa | 22% | 1t1e | Pro-kumamolisin, activation domain |
| Pro-MCH | PF05824 | 4 | 18 | 76 aa | 83% |   | Pro-melanin-concentrating hormone (Pro-MCH) |
| Pro-NT_NN | PF07421 | 3 | 10 | 156 aa | 83% |   | Neurotensin/neuromedin N precursor |
| PRO8NT | PF08082 | 15 | 65 | 148 aa | 66% |   | PRO8NT (NUC069) domain |
| PROCN | PF08083 | 12 | 74 | 368 aa | 68% |   | PROCN (NUC071) domain |
| PROCT | PF08084 | 19 | 67 | 122 aa | 43% |   | PROCT (NUC072) domain |
| Profilin | PF00235 | 16 | 270 | 123 aa | 41% | 2acg | Profilin |
| Prog_receptor | PF02161 | 3 | 40 | 261 aa | 52% |   | Progesterone receptor |
| Prok-TraM | PF09228 | 3 | 7 | 88 aa | 57% | 1us6 | Prokaryotic Transcriptional repressor TraM |
| Prokineticin | PF06607 | 2 | 38 | 94 aa | 59% | 1imt | Prokineticin |
| Prominin | PF05478 | 7 | 60 | 592 aa | 35% |   | Prominin |
| PRONE | PF03759 | 4 | 46 | 382 aa | 49% |   | PRONE (Plant-specific Rop nucleotide exchanger) |
| Propeptide_C1 | PF08127 | 56 | 142 | 42 aa | 36% |   | Peptidase family C1 propeptide |
| Propeptide_C25 | PF08126 | 2 | 10 | 189 aa | 68% |   | Propeptide_C25 |
| Propep_M14 | PF02244 | 10 | 160 | 74 aa | 24% | 1pba | Carboxypeptidase activation peptide |
| ProQ | PF04352 | 4 | 115 | 150 aa | 37% |   | ProQ activator of osmoprotectant transporter ProP |
| ProRS-C_1 | PF09180 | 88 | 206 | 74 aa | 30% | 1nj1 | Prolyl-tRNA synthetase, C-terminal |
| ProRS-C_2 | PF09181 | 2 | 3 | 65 aa | 62% | 1nj8 | Prolyl-tRNA synthetase, C-terminal |
| ProSAAS | PF07259 | 2 | 5 | 188 aa | 83% |   | ProSAAS precursor |
| Prosystemin | PF07376 | 2 | 8 | 197 aa | 83% |   | Prosystemin |
| Protamine_3 | PF08188 | 2 | 5 | 35 aa | 58% |   | Spermatozal protamine family |
| Protamine_P1 | PF00260 | 19 | 141 | 55 aa | 68% |   | Protamine P1 |
| Protamine_P2 | PF00841 | 5 | 23 | 94 aa | 73% |   | Sperm histone P2 |
| Proteasome | PF00227 | 175 | 2069 | 176 aa | 21% | 1pma | Proteasome A-type and B-type |
| Prothymosin | PF03247 | 2 | 46 | 104 aa | 70% |   | Prothymosin/parathymosin family |
| Protocadherin | PF08374 | 4 | 63 | 191 aa | 48% |   | Protocadherin |
| Prot_inhib_II | PF02428 | 10 | 285 | 48 aa | 69% | 1ce3 | Potato type II proteinase inhibitor family |
| Prox1 | PF05044 | 5 | 53 | 363 aa | 41% | 1mij | Homeobox prospero-like protein (PROX1) |
| Pro_3_hydrox_C | PF05373 | 4 | 5 | 91 aa | 37% | 1e5r | L-proline 3-hydroxylase, C-terminal |
| Pro_Al_protease | PF02983 | 20 | 48 | 59 aa | 29% | 2pro | Alpha-lytic protease prodomain |
| Pro_CA | PF00484 | 12 | 824 | 161 aa | 28% | 1ddz | Carbonic anhydrase |
| Pro_dh | PF01619 | 15 | 465 | 330 aa | 30% | 1k87 | Proline dehydrogenase |
| Pro_isomerase | PF00160 | 21 | 2139 | 157 aa | 36% | 1cyh | Cyclophilin type peptidyl-prolyl cis-trans isomerase/CLD |
| Pro_racemase | PF05544 | 14 | 184 | 305 aa | 36% |   | Proline racemase |
| Prp18 | PF02840 | 6 | 67 | 133 aa | 43% | 1dvk | Prp18 domain |
| Prp19 | PF08606 | 21 | 76 | 69 aa | 53% |   | Prp19/Pso4-like |
| PRP1_N | PF06424 | 8 | 65 | 145 aa | 47% |   | PRP1 splicing factor, N-terminal |
| PRP3 | PF08572 | 23 | 75 | 356 aa | 34% |   | pre-mRNA processing factor 3 (PRP3) |
| PRP38 | PF03371 | 4 | 105 | 172 aa | 35% |   | PRP38 family |
| PRP4 | PF08799 | 32 | 109 | 30 aa | 50% |   | pre-mRNA processing factor 4 (PRP4) like |
| PrpR_N | PF06506 | 9 | 83 | 172 aa | 30% |   | Propionate catabolism activator |
| PRRSV_2b | PF07069 | 2 | 16 | 72 aa | 87% |   | Porcine reproductive and respiratory syndrome virus (PRRSV) 2b protein |
| PRRSV_Env | PF02340 | 4 | 82 | 231 aa | 80% |   | PRRSV putative envelope protein |
| PRTP | PF01366 | 17 | 126 | 567 aa | 34% |   | Herpesvirus processing and transport protein |
| PRT_C | PF08372 | 26 | 75 | 144 aa | 64% |   | Plant phosphoribosyltransferase C-terminal |
| PsaA_PsaB | PF00223 | 3 | 985 | 543 aa | 59% | 1jb0 | Photosystem I psaA/psaB protein |
| PsaD | PF02531 | 7 | 65 | 134 aa | 64% | 1jb0 | PsaD |
| PsaL | PF02605 | 11 | 62 | 147 aa | 49% | 1jb0 | Photosystem I reaction centre subunit XI |
| PsaM | PF07465 | 19 | 62 | 28 aa | 48% | 1jb0 | Photosystem I protein M (PsaM) |
| PsaN | PF05479 | 3 | 18 | 99 aa | 54% |   | Photosystem I reaction centre subunit N (PSAN or PSI-N) |
| PsaX | PF08078 | 2 | 5 | 35 aa | 74% |   | PsaX family |
| Psb28 | PF03912 | 25 | 49 | 107 aa | 46% |   | Psb28 protein |
| PsbH | PF00737 | 16 | 444 | 30 aa | 79% |   | Photosystem II 10 kDa phosphoprotein |
| PsbI | PF02532 | 6 | 142 | 35 aa | 81% |   | Photosystem II reaction centre I protein (PSII 4.8 kDa protein) |
| PsbJ | PF01788 | 8 | 397 | 34 aa | 80% |   | PsbJ |
| PsbK | PF02533 | 8 | 171 | 41 aa | 72% |   | Photosystem II 4 kDa reaction centre component |
| PsbL | PF02419 | 3 | 411 | 37 aa | 92% |   | PsbL protein |
| PsbM | PF05151 | 6 | 259 | 30 aa | 77% |   | Photosystem II reaction centre M protein (PsbM) |
| PsbN | PF02468 | 7 | 617 | 43 aa | 84% |   | Photosystem II reaction centre N protein (psbN) |
| PsbP | PF01789 | 9 | 97 | 157 aa | 32% |   | PsbP |
| PsbQ | PF05757 | 10 | 39 | 170 aa | 33% | 1nze | Oxygen evolving enhancer protein 3 (PsbQ) |
| PsbR | PF04725 | 4 | 26 | 96 aa | 73% |   | Photosystem II 10 kDa polypeptide PsbR |
| PsbT | PF01405 | 3 | 596 | 27 aa | 89% |   | Photosystem II reaction centre T protein |
| PsbU | PF06514 | 7 | 36 | 126 aa | 37% |   | Photosystem II 12 kDa extrinsic protein (PsbU) |
| PsbW | PF07123 | 2 | 15 | 107 aa | 55% |   | Photosystem II reaction centre W protein (PsbW) |
| PsbX | PF06596 | 6 | 46 | 38 aa | 45% |   | Photosystem II reaction centre X protein (PsbX) |
| PsbY | PF06298 | 8 | 39 | 35 aa | 49% |   | Photosystem II protein Y (PsbY) |
| PSCyt1 | PF07635 | 51 | 61 | 55 aa | 30% |   | Planctomycete cytochrome C |
| PSCyt2 | PF07583 | 40 | 62 | 210 aa | 34% |   | Protein of unknown function (DUF1549) |
| PSCyt3 | PF07627 | 16 | 35 | 100 aa | 38% |   | Protein of unknown function (DUF1588) |
| PSD1 | PF07587 | 41 | 62 | 258 aa | 32% |   | Protein of unknown function (DUF1553) |
| PSD2 | PF07624 | 15 | 25 | 76 aa | 28% |   | Protein of unknown function (DUF1585) |
| PSD3 | PF07626 | 14 | 26 | 68 aa | 33% |   | Protein of unknown function (DUF1587) |
| PSD4 | PF07631 | 13 | 33 | 128 aa | 35% |   | Protein of unknown function (DUF1592) |
| PSD5 | PF07637 | 14 | 29 | 63 aa | 32% |   | Protein of unknown function (DUF1595) |
| PseudoU_synth_1 | PF01416 | 92 | 1472 | 103 aa | 21% | 1dj0 | tRNA pseudouridine synthase |
| PseudoU_synth_2 | PF00849 | 49 | 3108 | 147 aa | 25% | 1ksl | RNA pseudouridylate synthase |
| Psf1 | PF03651 | 3 | 42 | 187 aa | 37% |   | Partner of SLD five, PSF1 |
| Psf2 | PF04128 | 6 | 62 | 154 aa | 31% |   | Partner of SLD five, PSF2 |
| Psf3 | PF06425 | 7 | 60 | 155 aa | 26% |   | Partner of SLD five, PSF3 |
| PSGP | PF07276 | 3 | 135 | 13 aa | 64% |   | Apopolysialoglycoprotein (PSGP) |
| PSI | PF01437 | 95 | 548 | 50 aa | 27% | 1olz | Plexin repeat |
| PsiA | PF06952 | 3 | 22 | 229 aa | 66% |   | PsiA protein |
| PsiB | PF06290 | 2 | 25 | 138 aa | 81% |   | Plasmid SOS inhibition protein (PsiB) |
| PsiE | PF06146 | 8 | 116 | 136 aa | 31% |   | Phosphate-starvation-inducible E |
| PsiF_repeat | PF07769 | 12 | 132 | 33 aa | 60% |   | psiF repeat |
| PSII | PF00421 | 19 | 1109 | 366 aa | 45% |   | Photosystem II protein |
| PSI_8 | PF00796 | 14 | 126 | 24 aa | 69% | 1jb0 | Photosystem I reaction centre subunit VIII |
| PSI_PsaE | PF02427 | 11 | 73 | 62 aa | 61% | 1pse | Photosystem I reaction centre subunit IV / PsaE |
| PSI_PsaF | PF02507 | 10 | 65 | 153 aa | 46% | 1jb0 | Photosystem I reaction centre subunit III |
| PSI_PsaH | PF03244 | 5 | 23 | 110 aa | 69% |   | Photosystem I reaction centre subunit VI |
| PSI_PsaJ | PF01701 | 10 | 147 | 36 aa | 66% | 1jb0 | Photosystem I reaction centre subunit IX / PsaJ |
| PSI_PSAK | PF01241 | 9 | 76 | 69 aa | 33% | 1jb0 | Photosystem I psaG / psaK |
| PSK | PF06404 | 12 | 54 | 76 aa | 37% |   | Phytosulfokine precursor protein (PSK) |
| PSK_trans_fac | PF07704 | 7 | 51 | 80 aa | 34% |   | Rv0623-like transcription factor |
| PSP | PF04046 | 12 | 99 | 49 aa | 48% |   | PSP |
| PSP1 | PF04468 | 11 | 212 | 87 aa | 39% |   | PSP1 C-terminal conserved region |
| PSP94 | PF05825 | 7 | 21 | 97 aa | 63% |   | Beta-microseminoprotein (PSP-94) |
| PspA_IM30 | PF04012 | 11 | 346 | 219 aa | 24% |   | PspA/IM30 family |
| PspB | PF06667 | 5 | 70 | 73 aa | 50% |   | Phage shock protein B |
| PspC | PF04024 | 16 | 302 | 61 aa | 32% |   | PspC domain |
| PSRP-3_Ycf65 | PF04839 | 12 | 57 | 49 aa | 60% |   | Plastid and cyanobacterial ribosomal protein (PSRP-3 / Ycf65) |
| PSRT | PF07636 | 5 | 7 | 29 aa | 62% |   | PSRT |
| PSS | PF03034 | 9 | 49 | 254 aa | 42% |   | Phosphatidyl serine synthase |
| Psu | PF07455 | 3 | 12 | 164 aa | 61% |   | Phage polarity suppression protein (Psu) |
| PS_Dcarbxylase | PF02666 | 12 | 616 | 202 aa | 27% |   | Phosphatidylserine decarboxylase |
| PS_pyruv_trans | PF04230 | 23 | 168 | 302 aa | 18% |   | Polysaccharide pyruvyl transferase |
| PT | PF04886 | 15 | 267 | 33 aa | 36% |   | PT repeat |
| PTA_PTB | PF01515 | 21 | 822 | 305 aa | 32% | 1r5j | Phosphate acetyl/butaryl transferase |
| PTB | PF08416 | 14 | 102 | 131 aa | 32% |   | Phosphotyrosine-binding domain |
| PTE | PF02126 | 4 | 111 | 299 aa | 31% | 1dpm | Phosphotriesterase family |
| Pterin_4a | PF01329 | 5 | 404 | 95 aa | 33% | 1dco | Pterin 4 alpha carbinolamine dehydratase |
| Pterin_bind | PF00809 | 42 | 1333 | 205 aa | 27% | 1ajz | Pterin binding enzyme |
| PTH2 | PF01981 | 9 | 134 | 90 aa | 41% | 1rlk | Peptidyl-tRNA hydrolase PTH2 |
| PTN_MK_C | PF01091 | 9 | 53 | 61 aa | 49% | 1mkc | PTN/MK heparin-binding protein family, C-terminal domain |
| PTN_MK_N | PF05196 | 6 | 42 | 55 aa | 65% | 1mkc | PTN/MK heparin-binding protein family, N-terminal domain |
| PTPA | PF03095 | 8 | 106 | 283 aa | 39% |   | Phosphotyrosyl phosphate activator (PTPA) protein |
| PTPLA | PF04387 | 13 | 138 | 154 aa | 33% |   | Protein tyrosine phosphatase-like protein, PTPLA |
| PTPS | PF01242 | 4 | 460 | 121 aa | 31% | 1gtq | 6-pyruvoyl tetrahydropterin synthase |
| PTR2 | PF00854 | 25 | 977 | 338 aa | 20% |   | POT family |
| PTS-HPr | PF00381 | 9 | 773 | 83 aa | 33% | 1ptf | PTS HPr component phosphorylation site |
| PTSIIA_gutA | PF03829 | 7 | 54 | 115 aa | 38% |   | PTS system glucitol/sorbitol-specific IIA component |
| PTSIIB_sorb | PF03830 | 15 | 318 | 149 aa | 34% | 1ble | PTS system sorbose subfamily IIB component |
| PTS_2-RNA | PF01885 | 6 | 124 | 182 aa | 31% |   | RNA 2'-phosphotransferase, Tpt1 / KptA family |
| PTS_EIIA_1 | PF00358 | 14 | 648 | 131 aa | 40% | 1gla | phosphoenolpyruvate-dependent sugar phosphotransferase system, EIIA 1 |
| PTS_EIIA_2 | PF00359 | 13 | 1297 | 142 aa | 23% | 1a6j | Phosphoenolpyruvate-dependent sugar phosphotransferase system, EIIA 2 |
| PTS_EIIB | PF00367 | 18 | 991 | 34 aa | 43% | 1iba | phosphotransferase system, EIIB |
| PTS_EIIC | PF02378 | 55 | 1995 | 289 aa | 17% |   | Phosphotransferase system, EIIC |
| PTS_IIA | PF02255 | 10 | 291 | 95 aa | 39% | 1e2a | PTS system, Lactose/Cellobiose specific IIA subunit |
| PTS_IIB | PF02302 | 38 | 800 | 87 aa | 23% | 1e2b | PTS system, Lactose/Cellobiose specific IIB subunit |
| PTS_IIB_fruc | PF02379 | 14 | 443 | 101 aa | 42% |   | PTS system, Fructose specific IIB subunit |
| PUA | PF01472 | 108 | 779 | 73 aa | 27% | 1it8 | PUA domain |
| PUB | PF09409 | 67 | 130 | 84 aa | 22% |   | PUB domain |
| PUCC | PF03209 | 11 | 116 | 396 aa | 32% |   | PUCC protein |
| PucR | PF07905 | 27 | 135 | 125 aa | 25% |   | Purine catabolism regulatory protein-like family |
| PUD | PF03714 | 17 | 125 | 97 aa | 27% |   | Bacterial pullanase-associated domain |
| PUF | PF00806 | 50 | 2570 | 35 aa | 20% | 1m8z | Pumilio-family RNA binding repeat |
| PufQ | PF05398 | 3 | 9 | 74 aa | 44% |   | PufQ cytochrome subunit |
| PUL | PF08324 | 24 | 71 | 264 aa | 20% |   | PUL domain |
| PulS_OutS | PF09691 | 8 | 15 | 100 aa | 42% |   | Bacterial chaperone lipoprotein (PulS_OutS) |
| PurA | PF04845 | 6 | 52 | 207 aa | 55% |   | PurA ssDNA and RNA-binding protein |
| PurS | PF02700 | 5 | 248 | 78 aa | 39% | 1gtd | Phosphoribosylformylglycinamidine (FGAM) synthase |
| Pur_DNA_glyco | PF02245 | 8 | 287 | 179 aa | 34% | 1bnk | Methylpurine-DNA glycosylase (MPG) |
| PuR_N | PF09182 | 27 | 104 | 69 aa | 54% | 1o57 | Bacterial purine repressor, N-terminal |
| Put_DNA-bind_N | PF06971 | 17 | 169 | 49 aa | 44% | 1r72 | Putative DNA-binding protein N-terminus |
| Put_Phosphatase | PF06888 | 9 | 79 | 205 aa | 26% |   | Putative Phosphatase |
| PV-1 | PF06637 | 2 | 7 | 274 aa | 59% |   | PV-1 protein (PLVAP) |
| PvlArgDC | PF01862 | 12 | 69 | 165 aa | 36% | 1n2m | Pyruvoyl-dependent arginine decarboxylase (PvlArgDC) |
| PVL_ORF50 | PF07768 | 3 | 56 | 115 aa | 54% |   | PVL ORF-50-like family |
| PWI | PF01480 | 9 | 104 | 74 aa | 34% | 1mp1 | PWI domain |
| PWP2 | PF04047 | 5 | 48 | 115 aa | 35% |   | Periodic tryptophan protein 2 WD repeat associated presumed domain |
| PWWP | PF00855 | 14 | 424 | 74 aa | 27% | 1khc | PWWP domain |
| PX | PF00787 | 72 | 1236 | 114 aa | 20% | 1h6h | PX domain |
| PXA | PF02194 | 5 | 109 | 178 aa | 24% |   | PXA domain |
| PYC_OADA | PF02436 | 20 | 425 | 195 aa | 35% |   | Conserved carboxylase domain |
| PYNP_C | PF07831 | 54 | 297 | 73 aa | 31% | 1brw | Pyrimidine nucleoside phosphorylase C-terminal domain |
| Pyocin_S | PF06958 | 8 | 55 | 147 aa | 31% |   | S-type Pyocin |
| PyrBI_leader | PF08052 | 2 | 13 | 41 aa | 77% |   | PyrBI operon leader peptide |
| PyrI | PF01948 | 9 | 108 | 96 aa | 46% | 1acm | Aspartate carbamoyltransferase regulatory chain, allosteric domain |
| Pyridoxal_deC | PF00282 | 11 | 1582 | 265 aa | 30% | 1js3 | Pyridoxal-dependent decarboxylase conserved domain |
| Pyridox_oxidase | PF01243 | 145 | 1663 | 90 aa | 18% | 1ci0 | Pyridoxamine 5'-phosphate oxidase |
| PyrI_C | PF02748 | 9 | 103 | 51 aa | 39% | 1acm | Aspartate carbamoyltransferase regulatory chain, metal binding domain |
| Pyrophosphatase | PF00719 | 7 | 759 | 155 aa | 41% | 2prd | Inorganic pyrophosphatase |
| Pyr_excise | PF03013 | 3 | 40 | 135 aa | 51% | 2end | Pyrimidine dimer DNA glycosylase |
| Pyr_redox | PF00070 | 131 | 8619 | 83 aa | 23% | 3lad | Pyridine nucleotide-disulphide oxidoreductase |
| Pyr_redox_2 | PF07992 | 146 | 9124 | 238 aa | 21% | 3lad | Pyridine nucleotide-disulphide oxidoreductase |
| Pyr_redox_dim | PF02852 | 102 | 2741 | 107 aa | 28% | 1lvl | Pyridine nucleotide-disulphide oxidoreductase, dimerisation domain |
| PYST-C1 | PF09690 | 14 | 32 | 69 aa | 41% |   | Plasmodium yoelii subtelomeric region (PYST-C1) |
| PY_rept_46 | PF09689 | 7 | 29 | 46 aa | 64% |   | Plasmodium yoelii repeat (PY_rept_46) |
| P_C | PF06640 | 4 | 10 | 223 aa | 62% |   | P protein C-terminus |
| P_fal_TIGR01639 | PF09687 | 6 | 23 | 59 aa | 39% |   | Protein of unknown function (P_fal_TIGR01639) |
| P_gingi_FimA | PF06321 | 4 | 19 | 344 aa | 73% |   | Porphyromonas gingivalis major fimbrial subunit protein (FimA) |
| P_proprotein | PF01483 | 78 | 393 | 88 aa | 32% |   | Proprotein convertase P-domain |
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