Pfam 22.0 :: Browse Families - A
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Browse Pfam

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

A
Name acc number #seed #full av. len av. %id structure Description
A-2_8-polySTPF07388319271 aa44% Alpha-2,8-polysialyltransferase (POLYST)
A1_PropeptidePF079668530428 aa35% A1 Propeptide
A2L_zn_ribbonPF08792144932 aa50% A2L zinc ribbon domain
A2MPF002075734793 aa37%1c3dAlpha-2-macroglobulin family
A2M_compPF0767856393211 aa38%1bv8A-macroglobulin complement component
A2M_NPF0183553506264 aa20%1c3dAlpha-2-macroglobulin family N-terminal region
A2M_N_2PF0770370462143 aa22% Alpha-2-macroglobulin family N-terminal region
A2M_recepPF076775132589 aa36%1bv8A-macroglobulin receptor
A4_EXTRAPF02177598152 aa63%1mwpAmyloid A4 extracellular domain
AAAPF000042299438166 aa24%1nsfATPase family associated with various cellular activities (AAA)
AAA_2PF077241413294156 aa34%1nsfATPase family associated with various cellular activities (AAA)
AAA_3PF0772655768123 aa53%1nsfATPase family associated with various cellular activities (AAA)
AAA_4PF043266539095 aa20% Divergent AAA domain
AAA_5PF07728351886129 aa21%1nsfATPase family associated with various cellular activities (AAA)
AAA_PrkAPF082987193353 aa51% PrkA AAA domain
AalphaY_MDBPF0461155147 aa47% Mating type protein A alpha Y mating type dependent binding region
AAL_decarboxyPF033068157214 aa36% Alpha-acetolactate decarboxylase
AAR2PF05282558312 aa29% AAR2 protein
AARP2CNPF081422913481 aa34% AARP2CN (NUC121) domain
AATPF0341718116217 aa22% Acyl-coenzyme A:6-aminopenicillanic acid acyl-transferase
AATasePF072471061455 aa18% Alcohol acetyltransferase
AA_kinasePF006961073205237 aa19%1e19Amino acid kinase family
AA_permeasePF00324274898355 aa18% Amino acid permease
AA_permease_NPF0840375264 aa47% Amino acid permease N-terminal
Aa_transPF01490261285330 aa17% Transmembrane amino acid transporter protein
ABA_WDSPF02496188373 aa71% ABA/WDS induced protein
ABC-3PF0095016904252 aa28% ABC 3 transport family
ABC1PF0310932938120 aa32% ABC1 family
ABC2_membranePF010613033905195 aa14% ABC-2 type transporter
ABC_membranePF00664706419257 aa14%1pf4ABC transporter transmembrane region
ABC_membrane_2PF0647226338268 aa23% ABC transporter transmembrane region 2
ABC_sub_bindPF043929211279 aa33% ABC transporter substrate binding protein
ABC_tranPF000056447590185 aa26%1b0uABC transporter
AbfBPF052701148136 aa41% Alpha-L-arabinofuranosidase B (ABFB)
ABG_transportPF038069140468 aa43% AbgT putative transporter family
Abhydrolase_1PF00561489801174 aa17%1edealpha/beta hydrolase fold
Abhydrolase_2PF0223014630204 aa22%1auoPhospholipase/Carboxylesterase
Abhydrolase_3PF078591331618193 aa28% alpha/beta hydrolase fold
Abhydrolase_4PF0838638185102 aa25% TAP-like protein
Abhydro_lipasePF040831325168 aa34%1hlgab-hydrolase associated lipase region
AbiPF0251746140696 aa22% CAAX amino terminal protease family
Abi_2PF077511993212 aa23% Abi-like protein
Abi_HHRPF0781565774 aa65% Abl-interactor HHR
ABMPF03992116112963 aa18%1n5tAntibiotic biosynthesis monooxygenase
Abp2PF09441511169 aa58% ARS binding protein 2
ACBPPF008871435879 aa37%1acaAcyl CoA binding protein
ACCAPF0325515465137 aa49% Acetyl co-enzyme A carboxylase carboxyltransferase alpha subunit
ACC_centralPF0832620120589 aa33% Acetyl-CoA carboxylase, central region
AceKPF06315594553 aa46% Isocitrate dehydrogenase kinase/phosphatase (AceK)
Acetate_kinasePF0087112729341 aa38%1g99Acetokinase family
AcetDehyd-dimerPF0929037169144 aa62%1nvmProkaryotic acetaldehyde dehydrogenase, dimerisation
Acetone_carb_GPF08882937107 aa44% Acetone carboxylase gamma subunit
AcetylCoA_hydroPF025505306198 aa26% Acetyl-CoA hydrolase/transferase N-terminal domain
Acetyltransf_1PF005832431342782 aa18%1bo4Acetyltransferase (GNAT) family
Acetyltransf_2PF0079733260236 aa26%1e2tN-acetyltransferase
AChE_tetraPF0867473737 aa70% Acetylcholinesterase tetramerisation domain
Acid_phosphat_APF0032896747345 aa18%1rpaHistidine acid phosphatase
Acid_phosphat_BPF0376731213191 aa24%1n9kHAD superfamily, subfamily IIIB (Acid phosphatase)
ACN9PF0588254492 aa41% ACN9 family
AconitasePF00330111659449 aa32%1acoAconitase family (aconitate hydratase)
Aconitase_2_NPF0643412253350 aa60%1l5jAconitate hydratase 2 N-terminus
Aconitase_CPF00694181372115 aa36%1acoAconitase C-terminal domain
ACOXPF0175640214176 aa23%1is2Acyl-CoA oxidase
Acp26AbPF0577741490 aa94% Drosophila accessory gland-specific peptide 26Ab (Acp26Ab)
ACP53EAPF06313225116 aa52% Drosophila ACP53EA protein
ACPSPF0164843100966 aa27%1qr04'-phosphopantetheinyl transferase superfamily
ACP_syn_IIIPF0854517095677 aa37% 3-Oxoacyl-[acyl-carrier-protein (ACP)] synthase III
ACP_syn_III_CPF08541187107089 aa32% 3-Oxoacyl-[acyl-carrier-protein (ACP)] synthase III C terminal
ACR_tranPF00873162961966 aa26%1oy6AcrB/AcrD/AcrF family
ACTPF01842180592164 aa16%1psdACT domain
Act-Frag_catalyPF09192715284 aa29%1cjaActin-fragmin kinase, catalytic
ActAPF050586725209 aa50% ActA Protein
ACTH_domainPF00976228738 aa80% Corticotropin ACTH domain
ActinPF00022304720225 aa54%2btfActin
Activin_recpPF010642922682 aa25%1tbiActivin types I and II receptor domain
Acyl-ACP_TEPF0164330191236 aa30% Acyl-ACP thioesterase
Acyl-CoA_dh_1PF00441605125145 aa25%1bucAcyl-CoA dehydrogenase, C-terminal domain
Acyl-CoA_dh_2PF0802838513133 aa23% Acyl-CoA dehydrogenase, C-terminal domain
Acyl-CoA_dh_MPF02770497484352 aa36%1bucAcyl-CoA dehydrogenase, middle domain
Acyl-CoA_dh_NPF0277110304399 aa27%1bucAcyl-CoA dehydrogenase, N-terminal domain
AcylphosphatasePF00708564574 aa37%1apsAcylphosphatase
AcyltransferasePF01553582622128 aa21%1k30Acyltransferase
Acyl_CoA_thioPF025519661113 aa28%1c8uAcyl-CoA thioesterase
Acyl_transf_1PF00698132803264 aa30%1mlaAcyl transferase domain
Acyl_transf_2PF02273417291 aa70%1thtAcyl transferase
Acyl_transf_3PF01757621464333 aa17% Acyltransferase family
ADAM_CRPF0851670305110 aa33% ADAM cysteine-rich
ADAM_spacer1PF0598623161109 aa31% ADAM-TS Spacer 1
Adaptin_NPF0160233824443 aa18%1gw5Adaptin N terminal region
Adap_comp_subPF0092850414268 aa27%1bxxAdaptor complexes medium subunit family
Ada_Zn_bindingPF028052725565 aa48%1adnMetal binding domain of Ada
ADCPF06314879235 aa40% Acetoacetate decarboxylase (ADC)
ADC_lyasePF0261837480281 aa31% Aminodeoxychorismate lyase
Adenine_glycoPF033529412166 aa43%1nkuMethyladenine glycosylase
Adenosine_kinPF04008765153 aa56%1rlhAdenosine specific kinase
Adeno_100PF024381259590 aa59% Late 100kD protein
Adeno_52KPF030521063302 aa58% Adenoviral protein 52K
Adeno_E1APF027037115197 aa47% Early E1A protein
Adeno_E1B_19KPF01691956155 aa43% Adenovirus E1B 19K protein / small t-antigen
Adeno_E1B_55KPF016961062330 aa53% Adenovirus EB1 55K protein / large t-antigen
Adeno_E1B_55K_NPF0462355767 aa44% Adenovirus E1B protein N-terminus
Adeno_E3PF06040529136 aa66% Adenovirus E3 protein
Adeno_E3APF05248644105 aa66% Adenovirus E3A
Adeno_E3BPF0337664389 aa62% Adenovirus E3B protein
Adeno_E3_14_5PF04834659104 aa57% Early E3 14.5 kDa protein
Adeno_E3_15_3PF03307651119 aa68% Adenovirus 15.3kD protein in E3 region
Adeno_E3_CR1PF0244068976 aa41% Adenovirus E3 region protein CR1
Adeno_E3_CR2PF0243956545 aa50% Adenovirus E3 region protein CR2
Adeno_E4PF05385533102 aa58% Mastadenovirus early E4 13 kDa protein
Adeno_E4_34PF045281251146 aa57% Adenovirus early E4 34 kDa protein conserved region
Adeno_E4_ORF3PF06931533108 aa69% Mastadenovirus E4 ORF3 protein
Adeno_GP19KPF04881342139 aa55% Adenovirus GP19K
Adeno_hexonPF0106513973221 aa42%1dhxHexon, adenovirus major coat protein, N-terminal domain
Adeno_hexon_CPF0367813320202 aa77%1dhxHexon, adenovirus major coat protein, C-terminal domain
Adeno_IVa2PF02456859350 aa63% Adenovirus IVa2 protein
Adeno_knobPF005419190179 aa40%1knbAdenoviral fibre protein (knob domain)
Adeno_Penton_BPF01686980481 aa68% Adenovirus penton base protein
Adeno_PIXPF039551167108 aa58% Adenovirus hexon-associated protein (IX)
Adeno_PVPF03910842343 aa59% Adenovirus minor core protein PV
Adeno_PVIIIPF01310786200 aa55% Adenovirus hexon associated protein, protein VIII
Adeno_PXPF05829156443 aa69% Adenovirus late L2 mu core protein (Protein X)
Adeno_shaftPF006086380030 aa27%1qiuAdenoviral fibre protein (repeat/shaft region)
Adeno_terminalPF02459861554 aa63% Adenoviral DNA terminal protein
Adeno_VIIPF03228954122 aa57% Adenoviral core protein VII
Adenylate_cyclPF012955161567 aa65% Adenylate cyclase, class-I
Adenylsucc_syntPF00709114705405 aa46%1adeAdenylosuccinate synthetase
Adenyl_transfPF04439672254 aa40% Streptomycin adenylyltransferase
Adhes-Ig_likePF09085513107 aa70%1gsmAdhesion molecule, immunoglobulin-like
Adhesin_DrPF04619611128 aa48% Dr-family adhesin
Adhesin_P1PF0325782287 aa64% Mycoplasma adhesin P1
ADH_NPF0824093775499 aa27% Alcohol dehydrogenase GroES-like domain
adh_shortPF0010623018503157 aa24%1hdcshort chain dehydrogenase
ADH_zinc_NPF001071088087136 aa22%1hdxZinc-binding dehydrogenase
Adipokin_hormoPF0637721462 aa44% Adipokinetic hormone
ADKPF00406231288162 aa38%1akeAdenylate kinase
ADK_lidPF051913676435 aa50%1akeAdenylate kinase, active site lid
AdoHcyasePF052219539404 aa49%1b3rS-adenosyl-L-homocysteine hydrolase
AdoHcyase_NADPF0067016535158 aa54%1b3rS-adenosyl-L-homocysteine hydrolase, NAD binding domain
AdoMetDC_leaderPF0813291352 aa86% S-adenosyl-l-methionine decarboxylase leader peptide
AdoMet_dcPF0267522236113 aa36% S-adenosylmethionine decarboxylase
AdoMet_SynthasePF019411778383 aa42% S-adenosylmethionine synthetase (AdoMet synthetase)
ADP_PFK_GKPF04587947386 aa28%1l2lADP-specific Phosphofructokinase/Glucokinase conserved region
ADP_ribosyl_GHPF0374720333281 aa21%1t5jADP-ribosylglycohydrolase
AdrenomedullinPF02039215130 aa53% Adrenomedullin
Ad_cyc_g-alphaPF08509133053 aa29% Adenylate cyclase G-alpha binding domain
AegerolysinPF063551235114 aa33% Aegerolysin
AerolysinPF011176133191 aa62%1preAerolysin toxin
AF-4PF05110862567 aa34% AF-4 proto-oncoprotein
AfaDPF05775825137 aa49% Enterobacteria AfaD invasin protein
AFG1_ATPasePF039698397354 aa35% AFG1-like ATPase
AflRPF08493462249 aa64% Aflatoxin regulatory protein
AFOR_CPF013149194360 aa27%1aorAldehyde ferredoxin oxidoreductase, domains 2 & 3
AFOR_NPF0273012210196 aa36%1aorAldehyde ferredoxin oxidoreductase, N-terminal domain
AFPPF02420954211 aa44%1ezgInsect antifreeze protein repeat
AfsAPF0375693177 aa29% A-factor biosynthesis repeat
AFTPF08731811109 aa42% Transcription factor AFT
Ag332PF046714332621 aa45% Erythrocyte membrane-associated giant protein antigen 332
AgenetPF056413414667 aa28% Agenet domain
AgglutininPF0746829145 aa52%1jlxAgglutinin
AgoutiPF05039586105 aa51%1hykAgouti protein
AgrBPF0464711116168 aa34% Accessory gene regulator B
AgrDPF05931194845 aa43% Staphylococcal AgrD protein
Agro_virD5PF0473048726 aa67% Agrobacterium VirD5 protein
AGTRAPPF0639629156 aa67% Angiotensin II, type I receptor-associated protein (AGTRAP)
Aha1_NPF092294195128 aa27%1usuActivator of Hsp90 ATPase, N-terminal
AhpC-TSAPF005781292968121 aa24%1prxAhpC/TSA family
AHS1PF026824369207 aa30% Allophanate hydrolase subunit 1
AHS2PF026265386281 aa33% Allophanate hydrolase subunit 2
AHSA1PF0832711861767 aa21% Activator of Hsp90 ATPase homolog 1-like protein
AHSPPF092362588 aa74%1w09Alpha-haemoglobin stabilising protein
AICARFT_IMPCHasPF018089666293 aa42%1m9nAICARFT/IMPCHase bienzyme
AIG1PF0454832209190 aa28% AIG1 family
AIG2PF0609499392102 aa21% AIG2-like family
Ail_LomPF063162118182 aa40%1qj9Enterobacterial Ail/Lom protein
AIP3PF03915326407 aa39% Actin interacting protein 3
AIRCPF0073113636154 aa50%1d7aAIR carboxylase
AIRSPF00586542274149 aa22%1cliAIR synthase related protein, N-terminal domain
AIRS_CPF027691722830154 aa18%1cliAIR synthase related protein, C-terminal domain
AKAP95PF04988334359 aa37% A-kinase anchoring protein 95 (AKAP95)
AKAP_110PF05716431459 aa50% A-kinase anchor protein 110 kDa (AKAP 110)
ALADPF0049010644307 aa49%1aw5Delta-aminolevulinic acid dehydratase
AlaDh_PNT_CPF01262100793160 aa36%1sayAlanine dehydrogenase/PNT, C-terminal domain
AlaDh_PNT_NPF0522242781131 aa36%1sayAlanine dehydrogenase/PNT, N-terminal domain
Ala_racemase_CPF0084245658125 aa36%1sftAlanine racemase, C-terminal domain
Ala_racemase_NPF01168601384217 aa22%1sftAlanine racemase, N-terminal domain
Alb1PF0913556162 aa45% Alb1
AlbaPF019182914371 aa27%1h0yAlba
Albicidin_resPF0558343475 aa39% Albicidin resistance domain
Albumin_IPF0802743593 aa60% Albumin I
AldedhPF001711216798398 aa28%1ag8Aldehyde dehydrogenase family
AldolasePF010815467194 aa33%1fwrKDPG and KHG aldolase
Aldolase_IIPF00596511115198 aa21%1fuaClass II Aldolase and Adducin N-terminal domain
Aldose_epimPF0126367907266 aa20%1jovAldose 1-epimerase
Aldo_ket_redPF00248674059279 aa24%1adsAldo/keto reductase family
Ald_Xan_dh_CPF01315301067106 aa33%1aloAldehyde oxidase and xanthine dehydrogenase, a/b hammerhead domain
Ald_Xan_dh_C2PF02738302131268 aa18%1aloAldehyde oxidase and xanthine dehydrogenase, molybdopterin binding domain
ALFPF03752244846 aa29% Short repeats of unknown function
Alg14PF0866039131152 aa31% Oligosaccharide biosynthesis protein Alg14 like
ALG3PF05208854345 aa41% ALG3 protein
Alg6_Alg8PF031559108419 aa34% ALG6, ALG8 glycosyltransferase family
Alginate_lyasePF05426430340 aa49%1qazAlginate lyase
Alginate_lyase2PF087873070227 aa24%1uaiAlginate lyase
AlkA_NPF0602911135119 aa34%1dizAlkA N-terminal domain
Alk_phosphatasePF0024510544354 aa31%1alkAlkaline phosphatase
AllantoicasePF0356113232142 aa40%1sg3Allantoicase repeat
AllatostatinPF059532124911 aa59% Allatostatin
Allene_ox_cycPF06351726170 aa67% Allene oxide cyclase
Allexi_40kDaPF05549711330 aa41% Allexivirus 40kDa protein
Alliinase_CPF048641044313 aa55%1lk9Allinase
ALOPF0403036182237 aa24% D-arabinono-1,4-lactone oxidase
Alpha-2-MRAP_CPF06401530206 aa57% Alpha-2-macroglobulin RAP, C-terminal domain
Alpha-2-MRAP_NPF06400428114 aa61%1lreAlpha-2-macroglobulin RAP, N-terminal domain
Alpha-amylasePF00128544103289 aa21%1ppiAlpha amylase, catalytic domain
Alpha-amylase_CPF0280626094788 aa26%1ppiAlpha amylase, C-terminal all-beta domain
Alpha-amylase_NPF0290311100113 aa31%1smaAlpha amylase, N-terminal ig-like domain
Alpha-amyl_CPF090715666 aa40%1eh9Alpha-amylase, C terminal
Alpha-amyl_C2PF07821177560 aa48% Alpha-amylase C-terminal beta-sheet domain
Alpha-L-AF_CPF0696425164195 aa25%1pz2Alpha-L-arabinofuranosidase C-terminus
Alpha-mann_midPF092618726278 aa30%1o7dAlpha mannosidase, middle domain
AlphaC_NPF08829530184 aa71% Alpha C protein N terminal
Alpha_adaptinC2PF0288324250113 aa20%1qtpAdaptin C-terminal domain
Alpha_adaptin_CPF02296445113 aa50%1qtpAlpha adaptin AP2, C-terminal domain
Alpha_E1_glycopPF015898451272 aa41%1rerAlphavirus E1 glycoprotein
Alpha_E2_glycopPF0094311585248 aa39% Alphavirus E2 glycoprotein
Alpha_E3_glycopPF015631030756 aa60% Alphavirus E3 glycoprotein
Alpha_GJPF0322954376 aa65% Alphavirus glycoprotein J
Alpha_kinasePF028168100205 aa27%1ia9Alpha-kinase family
Alpha_L_fucosPF011203151314 aa37%1hl9Alpha-L-fucosidase
Alpha_TIFPF02232842341 aa45%16vpAlpha trans-inducing protein (Alpha-TIF)
Alph_Pro_TMPF096083551221 aa34% Putative transmembrane protein (Alph_Pro_TM)
Alum_resPF0683814112384 aa52% Aluminium resistance protein
AMA-1PF024304373306 aa69%1hn6Apical membrane antigen 1
AmastinPF07344358155 aa37% Amastin surface glycoprotein
Amb_V_allergenPF039132443 aa60%1bbgAmb V Allergen
AmelinPF05111418370 aa59% Ameloblastin precursor (Amelin)
AmelogeninPF029486112114 aa66% Amelogenin
AMH_NPF04709524352 aa37% Anti-Mullerian hormone, N terminal region
AmidasePF01425442090420 aa26%1ocmAmidase
Amidase_2PF01510571001151 aa21%1lbaN-acetylmuramoyl-L-alanine amidase
Amidase_3PF0152031893191 aa29%1jwqN-acetylmuramoyl-L-alanine amidase
Amidase_5PF05382838139 aa43% Bacteriophage peptidoglycan hydrolase
AmidinotransfPF0227427431332 aa25%1jdwAmidinotransferase
Amidohydro_1PF01979584432219 aa17%1j79Amidohydrolase family
Amidohydro_2PF049091371181286 aa14% Amidohydrolase
Amidohydro_3PF07969431073344 aa19% Amidohydrolase family
Amido_AtzD_TrzDPF09663915350 aa54% Amidohydrolase ring-opening protein (Amido_AtzD_TrzD)
Aminotran_1_2PF00155487734314 aa18%1artAminotransferase class I and II
Aminotran_3PF00202183499317 aa29%1dgdAminotransferase class-III
Aminotran_4PF01063251313264 aa26%1daaAminotransferase class IV
Aminotran_5PF00266453509309 aa21%1bjoAminotransferase class-V
Amino_oxidasePF01593862116309 aa18%1b37Flavin containing amine oxidoreductase
AmiS_UreIPF022935202186 aa77% AmiS/UreI family transporter
AMMECR1PF018716186176 aa29% AMMECR1
Ammonium_transpPF00909251230371 aa27% Ammonium Transporter Family
AMOPF0246153178149 aa60% Ammonia monooxygenase
AmoAPF051458155292 aa25% Putative ammonia monooxygenase
AmoCPF04896428250 aa57% Ammonia monooxygenase/methane monooxygenase, subunit C
AMOPPF03782640151 aa31% AMOP domain
AMP-bindingPF0050140113267335 aa21%1lciAMP-binding enzyme
AMPKBIPF04739139893 aa42% 5'-AMP-activated protein kinase, beta subunit, complex-interacting region
AMP_NPF0519516348126 aa29%1az9Aminopeptidase P, N-terminal domain
ANATOPF018211814135 aa40%1c5aAnaphylotoxin-like domain
Androgen_recepPF021663125273 aa68% Androgen receptor
Anemone_cytotoxPF06369327111 aa51%1kd6Sea anemone cytotoxic protein
AnfG_VnfGPF031391139111 aa45% Vanadium/alternative nitrogenase delta subunit
AnfO_nitrogPF095821116195 aa30% Iron only nitrogenase protein AnfO (AnfO_nitrog)
ANF_receptorPF010941202261293 aa15%2livReceptor family ligand binding region
AnkPF0002311635692830 aa28%1awcAnkyrin repeat
ANKHPF07260213443 aa89% Progressive ankylosis protein (ANKH)
AnnexinPF00191180183163 aa30%2ranAnnexin
ANPPF002121417177 aa42%1anpAtrial natriuretic peptide
Anp1PF03452764342 aa44% Anp1
ANTPF033744101128 aa48% Phage antirepressor protein
AntAPF083462810567 aa41% AntA/AntB antirepressor
ANTARPF038611840656 aa30%1qo0ANTAR domain
ANTHPF0765129192243 aa24% ANTH domain
Anthrax-tox_MPF0915622287 aa100%1j7nAnthrax toxin lethal factor, middle domain
Anthrax_toxAPF03497717150 aa43%1jkyAnthrax toxin LF subunit
Anth_IgPF0558733098 aa56% Anthrax receptor extracellular domain
Anth_synt_I_NPF0471567944134 aa24%1i1qAnthranilate synthase component I, N terminal region
Anti-silencePF04729693147 aa49%1rocAnti-silencing protein, ASF1-like
Antibiotic_NATPF025221196202 aa36% Aminoglycoside 3-N-acetyltransferase
Anticodon_1PF082641792178135 aa22%1ivsAnticodon-binding domain
Antig_Caf1PF0925528132 aa100%1p5vCaf1 Capsule antigen
Antimicrobial10PF081052252 aa100% Metchnikowin family
Antimicrobial11PF081062216 aa88% Formaecin family
Antimicrobial12PF0810742938 aa50% Pleurocidin family
Antimicrobial13PF081082215 aa100% Halocidin family
Antimicrobial14PF081092231 aa100% Lactocin 705 family
Antimicrobial15PF081102319 aa60% Ocellatin family
Antimicrobial16PF081283642 aa78% Double glycine cleavage site bacteriolysin
Antimicrobial17PF081292641 aa59% Alpha/beta enterocin family
Antimicrobial18PF081302343 aa62% Type A lantibiotic family
Antimicrobial19PF082254423 aa77% Pseudin antimicrobial peptide
Antimicrobial20PF08256143813 aa58% Aurein-like antibiotic peptide
Antimicrobial_1PF08018154623 aa58% Frog antimicrobial peptide
Antimicrobial_2PF08023188231 aa36% Frog antimicrobial peptide
Antimicrobial_3PF080252437 aa84% Spider antimicrobial peptide
Antimicrobial_4PF080245623 aa53% Ant antimicrobial peptide
Antimicrobial_5PF080262435 aa78% Bee antimicrobial peptide
Antimicrobial_6PF080363338 aa65% Diapausin family of antimicrobial peptide
Antimicrobial_7PF081023742 aa76% Scorpion antimicrobial peptide
Antimicrobial_8PF081034717 aa59% Uperin family
Antimicrobial_9PF081042224 aa96% Ponericin L family
AntirestrictPF0323069597 aa46% Antirestriction protein
AntistasinPF028221111326 aa40%1hiaAntistasin family
AntitermPF0358946192 aa30% Antitermination protein
Ant_CPF0558621991 aa69% Anthrax receptor C-terminus region
An_peroxidasePF0309817503311 aa25%1mhlAnimal haem peroxidase
AOXPF0178610181241 aa46% Alternative oxidase
AP2PF00847235156252 aa38%3gccAP2 domain
ApbAPF02558100671151 aa23%1ks9Ketopantoate reductase PanE/ApbA
ApbA_CPF08546101650125 aa25%1ks9Ketopantoate reductase PanE/ApbA C terminal
ApbEPF0242412468296 aa26% ApbE family
APC10PF03256780179 aa31%1gqpAnaphase-promoting complex, subunit 10 (APC10)
Apc13pPF0583931387 aa50% Apc13p protein
Apc15pPF0584122156 aa32% Apc15p protein
APC2PF08672144159 aa44%1lddAnaphase promoting complex (APC) subunit 2
APC8PF04049454144 aa33% Anaphase promoting complex subunit 8 / Cdc23
APC_15aaPF0597293316 aa49%1jppAPC 15 residue motif
APC_basicPF05956311306 aa55% APC basic domain
APC_crrPF059232710926 aa40% APC cysteine-rich region
APG12PF0411064493 aa35% Ubiquitin-like autophagy protein Apg12
APG17PF04108217175 aa41% Autophagy protein Apg17
APG5PF04106473197 aa35% Autophagy protein Apg5
APG6PF04111596317 aa36% Autophagy protein Apg6
APG9PF04109482359 aa36% Autophagy protein Apg9
APHPF016362721904236 aa15%1j7lPhosphotransferase enzyme family
Aph-1PF06105636231 aa52% Aph-1 protein
aPHCPF05875970247 aa27% Alkaline phytoceramidase (aPHC)
APH_6_hurPF046559101215 aa39% Aminoglycoside/hydroxyurea antibiotic resistance kinase
API5PF05918336407 aa35% Apoptosis inhibitory protein 5 (API5)
ApidaecinPF0080722627 aa94% Apidaecin
Apo-CIIPF053556974 aa64%1by6Apolipoprotein C-II
Apo-CIIIPF0577851084 aa62% Apolipoprotein CIII (Apo-CIII)
Apo-VLDL-IIPF054183782 aa78% Apovitellenin I (Apo-VLDL-II)
ApoA-IIPF0471141076 aa67%1l6kApolipoprotein A-II (ApoA-II)
APOBEC_CPF052401622962 aa44% APOBEC-like C-terminal domain
APOBEC_NPF0821022239110 aa44% APOBEC-like N-terminal domain
ApoC-IPF0469141053 aa66%1aleApolipoprotein C-I (ApoC-1)
Apocytochr_F_CPF0133311174107 aa68%1ctmApocytochrome F, C-terminal
ApoLPF05461741265 aa37% Apolipoprotein L
ApolipoproteinPF0144221152189 aa24%1oefApolipoprotein A1/A4/E domain
ApoLp-IIIPF07464512160 aa70%1eq1Apolipophorin-III precursor (apoLp-III)
APSESPF02292810082 aa42%1bm8APSES domain
APS_kinasePF0158320527155 aa49%1d6jAdenylylsulphate kinase
APTPF0344053691 aa53%1preAerolysin/Pertussis toxin (APT) domain
ApyrasePF06079745305 aa44%1s1dApyrase
AP_endonuc_2PF012613142096202 aa15%1qtwXylose isomerase-like TIM barrel
AP_endonuc_2_NPF07582910851 aa37% AP endonuclease family 2 C terminus
ArabFuran-catalPF09206423308 aa76%1wd3Alpha-L-arabinofuranosidase B, catalytic
Arabinose_IsomePF02610283477 aa55% L-arabinose isomerase
Arabinose_transPF04602788718 aa55% Mycobacterial cell wall arabinan synthesis protein
AraC_bindingPF0231159747126 aa16%2aacAraC-like ligand binding domain
AraC_E_bindPF06445100597150 aa16%1d5yBacterial transcription activator, effector binding domain
AraC_NPF0671923238153 aa32% AraC-type transcriptional regulator N-terminus
Arb1PF09692912359 aa37% Argonaute siRNA chaperone (ARC) complex subunit Arb1
ArcPF0386936146 aa39%1mykArc-like DNA binding domain
ARC105PF0960651763 aa60% ARC105 domain
Arch_ATPasePF0163732218186 aa23% Archaeal ATPase
Arch_flagellinPF019171983211 aa32% Archaebacterial flagellin
Arch_fla_DEPF046591225108 aa37% Archaeal flagella protein
Arc_PepCPF0681969110 aa33% Archaeal Peptidase A24 C-terminal Domain
Arc_PepC_IIPF06847102284 aa27% Archaeal Peptidase A24 C-terminus Type II
Arc_trans_TRASHPF0839481533 aa45% Archaeal TRASH domain
ARDPF0307911160147 aa32%1m4oARD/ARD' family
ArdAPF072751160163 aa30% Antirestriction protein (ArdA)
AreA_NPF0757341484 aa60% Nitrogen regulatory protein AreA N terminus
Arena_glycoprotPF007987214300 aa44%1s7qArenavirus glycoprotein
Arena_nucleocapPF008438321266 aa57% Arenavirus nucleocapsid protein
Arena_RNA_polPF063174751039 aa49% Arenavirus RNA polymerase
ArfPF00025201049167 aa39%1hurADP-ribosylation factor family
ArfaptinPF064561183217 aa32%1i4lArfaptin-like domain
ArfGapPF0141223624119 aa32%1dcqPutative GTPase activating protein for Arf
ArginasePF0049111878276 aa27%1rlaArginase family
Arginosuc_synthPF0076412594377 aa41%1kp2Arginosuccinate synthase
ArgJPF0196015403387 aa41% ArgJ family
ArgKPF033089268245 aa41% ArgK protein
Arg_repressorPF013161036369 aa34%1aoyArginine repressor, DNA binding domain
Arg_repressor_CPF028634937968 aa32%1aoyArginine repressor, C-terminal domain
Arg_tRNA_synt_NPF034855568086 aa28%1f7uArginyl tRNA synthetase N terminal domain
ARIDPF013881230198 aa29%1bmyARID/BRIGHT DNA binding domain
Arif-1PF06770826197 aa29% Actin-rearrangement-inducing factor (Arif-1)
ArmPF00514244370141 aa22%3bctArmadillo/beta-catenin-like repeat
ARM_1PF04683662249 aa41% Adhesion regulating molecule conserved region
AroMPF07302423221 aa57% AroM protein
ARPC4PF05856674163 aa61% ARP2/3 complex 20 kDa subunit (ARPC4)
Arrestin_CPF0275261352141 aa20%1cf1Arrestin (or S-antigen), C-terminal domain
Arrestin_NPF0033943408137 aa22%1cf1Arrestin (or S-antigen), N-terminal domain
ARS2PF04959328203 aa62% Arsenite-resistance protein 2
ArsA_ATPasePF0237411478288 aa26%1f48Anion-transporting ATPase
ArsBPF020404212389 aa45% Arsenical pump membrane protein
ArsCPF0396036875110 aa27%1i9dArsC family
ArsDPF06953365118 aa41% Arsenical resistance operon trans-acting repressor ArsD
ARTPF01129991189 aa37%1gy0NAD:arginine ADP-ribosyltransferase
Arteri_envPF016063134210 aa74% Arterivirus envelope protein
Arteri_GlPF0095184353171 aa73% Arterivirus GL envelope glycoprotein
Arteri_GP4PF02497381170 aa78% Arterivirus glycoprotein
Arteri_nucleoPF014814253107 aa66%1p65Arterivirus nucleocapsid protein
Arv1PF04161756148 aa33% Arv1-like family
ArylesterasePF0173165877 aa41% Arylesterase
ArylsulfotransPF05935865389 aa37% Arylsulfotransferase (ASST)
ASCPF0085828332345 aa21% Amiloride-sensitive sodium channel
ASCHPF0426689281102 aa19% ASCH domain
ASD1PF08688730142 aa44% Apx/Shroom domain ASD1
ASD2PF08687948252 aa45% Apx/Shroom domain ASD2
ASFV_360PF016711422204 aa42% African swine fever virus multigene family 360 protein
ASFV_J13LPF0556829184 aa86% African swine fever virus J13L protein
ASFV_L11LPF052932877 aa90% African swine fever virus (ASFV) L11L protein
ASFV_p27PF06556211131 aa97% IAP-like protein p27 C-terminus
AsiAPF090105891 aa45% Anti-Sigma Factor A
ASL_CPF0832837251114 aa58% Adenylosuccinate lyase C-terminal
AsmAPF0517012419366 aa17% AsmA family
AsnAPF035906117233 aa53%12asAspartate-ammonia ligase
AsnC_trans_regPF01037264218575 aa23%1i1gAsnC family
Asn_synthasePF00733105907266 aa26%1ct9Asparagine synthase
AspPF00026231337304 aa27%1mppEukaryotic aspartyl protease
Asp-Al_ExPF0682634324168 aa27% Predicted Permease Membrane Region
Asp-B-Hydro_NPF05279251196 aa64% Aspartyl beta-hydroxylase N-terminal region
AsparaginasePF00710110572303 aa29%3pgaAsparaginase
Asparaginase_2PF011127375246 aa36%1aylAsparaginase
Asparaginase_IIPF0608911100321 aa36% L-asparaginase II
Asp_Arg_HydroxPF0511812185159 aa31%1e5rAspartyl/Asparaginyl beta-hydroxylase
Asp_decarboxPF022618297114 aa50%1aw8Aspartate decarboxylase
Asp_Glu_racePF01177661193209 aa22%1b74Asp/Glu/Hydantoin racemase
Asp_proteasePF096681277120 aa53% Aspartyl protease
AsrPF0639288220 aa60% Acid shock protein repeat
AstAPF049586158337 aa42% Arginine N-succinyltransferase beta subunit
AstacinPF0140026402180 aa35%1astAstacin (Peptidase family M12A)
AstBPF049964100432 aa58% Succinylarginine dihydrolase
AstE_AspAPF0495233458278 aa19% Succinylglutamate desuccinylase / Aspartoacylase family
Astro_capsidPF031157494190 aa60% Astrovirus capsid protein precursor
ATE_CPF0437713251139 aa35% Arginine-tRNA-protein transferase, C terminus
ATE_NPF043761124188 aa34% Arginine-tRNA-protein transferase, N terminus
ATG16PF086141757161 aa25% Autophagy protein 16 (ATG16)
ATG27PF094511538257 aa19% Autophagy-related protein 27
ATG_CPF09333226796 aa35% ATG C terminal domain
ATHILAPF030781344259 aa32% ATHILA ORF-1 family
ATLFPF0773738222 aa40%1pwqAnthrax toxin lethal factor, N- and C-terminal domain
ATP-conePF0347773111491 aa24%7r1rATP cone domain
ATP-graspPF0222223920157 aa30%1scuATP-grasp domain
ATP-grasp_2PF0844222862160 aa37% ATP-grasp domain
ATP-grasp_3PF0265518240166 aa19% ATP-grasp domain
ATP-gua_PtransPF002176783152 aa50%1crkATP:guanido phosphotransferase, C-terminal catalytic domain
ATP-gua_PtransNPF02807669170 aa65%1crkATP:guanido phosphotransferase, N-terminal domain
ATP-sulfurylasePF0174719267303 aa35%1i2dATP-sulfurylase
ATP-syntPF0023118830272 aa33%1bmfATP synthase
ATP-synt_10PF05176325143 aa40% ATP10 protein
ATP-synt_8PF0089566319053 aa40% ATP synthase protein 8
ATP-synt_APF00119306220195 aa43%1c17ATP synthase A chain
ATP-synt_abPF000061527798209 aa47%1bmfATP synthase alpha/beta family, nucleotide-binding domain
ATP-synt_ab_CPF00306151575296 aa43%1bmfATP synthase alpha/beta chain, C terminal domain
ATP-synt_ab_NPF02874196605564 aa40%1bmfATP synthase alpha/beta family, beta-barrel domain
ATP-synt_BPF0043027913130 aa23%1b9uATP synthase B/B' CF(0)
ATP-synt_CPF0013735173866 aa29%1atyATP synthase subunit C
ATP-synt_DPF0181318214187 aa33% ATP synthase subunit D
ATP-synt_DEPF004011656747 aa36%1aqtATP synthase, Delta/Epsilon chain, long alpha-helix domain
ATP-synt_DE_NPF028232092381 aa32%1aqtATP synthase, Delta/Epsilon chain, beta-sandwich domain
ATP-synt_EPF05680184675 aa36% ATP synthase E chain
ATP-synt_EpsPF0462795648 aa42%1e79Mitochondrial ATP synthase epsilon chain
ATP-synt_E_2PF081122443 aa55% ATP synthase epsilon subunit
ATP-synt_FPF019901415194 aa30% ATP synthase (F/14-kDa) subunit
ATP-synt_F6PF0551143088 aa48% Mitochondrial ATP synthase coupling factor 6
ATP-synt_GPF04718759102 aa32% Mitochondrial ATP synthase g subunit
ATP-synt_JPF0491121454 aa46% ATP synthase j chain
ATP-synt_S1PF05827445286 aa48% Vacuolar ATP synthase subunit S1 (ATP6S1)
ATP11PF06644548238 aa29% ATP11 protein
ATP12PF0754211104136 aa32% ATP12 chaperone protein
ATP1G1_PLM_MAT8PF0203885452 aa45% ATP1G1/PLM/MAT8 family
ATPase_gene1PF09527304260 aa42% Putative F0F1-ATPase subunit (ATPase_gene1)
ATP_bind_1PF0302932337215 aa27% Conserved hypothetical ATP binding protein
ATP_bind_2PF036684379277 aa41% P-loop ATPase protein family
ATP_bind_3PF01171331157146 aa29%1ni5PP-loop family
ATP_bind_4PF019026166209 aa32%1ru8ATP-binding region
ATP_synt_HPF05493105763 aa44% ATP synthase subunit H
ATP_synt_IPF038995100119 aa36% ATP synthase I chain
AtracotoxinPF053532742 aa65%1qdpDelta Atracotoxin
Atrophin-1PF03154341461 aa46% Atrophin-1 family
ATS3PF06232523124 aa48% Embryo-specific protein 3, (ATS3)
Attacin_CPF037691067110 aa36% Attacin, C-terminal region
Attacin_NPF03768145063 aa41% Attacin, N-terminal region
AttractinPF080372554 aa65% Attractin family
ATX_IIIPF080982517 aa60% Anemonia sulcata toxin III family
AT_hookPF0217843159613 aa47%2ezeAT hook motif
Aurora-A_bindPF0904141561 aa57% Aurora-A binding
Autoind_bindPF0347245450140 aa23%1h0mAutoinducer binding domain
Autoind_synthPF0076513258171 aa30%1kzfAutoinducer synthetase
Autophagy_CPF03987797123 aa36% Autophagocytosis associated protein, C-terminal domain
Autophagy_NPF03986662128 aa42% Autophagocytosis associated protein, N-terminal domain
AutotransporterPF037972161497241 aa15%1uynAutotransporter beta-domain
Auto_anti-p27PF06677156141 aa38% Sjogren's syndrome/scleroderma autoantigen 1 (Autoantigen p27)
Auxin_BPPF02041445148 aa70%1lr5Auxin binding protein
Auxin_induciblePF025191423095 aa33% Auxin responsive protein
Auxin_repressedPF055641251103 aa40% Dormancy/auxin associated protein
Auxin_respPF065071713480 aa45% Auxin response factor
AUX_IAAPF0230911242179 aa36% AUX/IAA family
Avian_gp85PF037084113214 aa62% Avian retrovirus envelope protein, gp85
AvidinPF01382630111 aa34%1slfAvidin family
AvirulencePF033778150441 aa66% Xanthomonas avirulence protein, Avr/PthA
AvrB_AvrCPF05394415307 aa49%1nh1Avirulence protein
AvrDPF05655222266 aa69% Pseudomonas avirulence D protein (AvrD)
AvrPphF-ORF-2PF0914338159 aa48%1s21AvrPphF-ORF-2
AvrPtoB-E3_ubiqPF0904648124 aa82% AvrPtoB E3 ubiquitin ligase
Av_adeno_fibrePF065365994 aa47% Avian adenovirus fibre
AWPM-19PF05512818133 aa52% AWPM-19-like family
AXE1PF054481178246 aa34%1l7aAcetyl xylan esterase (AXE1)
AXHPF08517531114 aa43% Ataxin-1 and HBP1 module (AXH)
Axin_b-cat_bindPF0883373336 aa61% Axin beta-catenin binding domain
AzlCPF0359178384141 aa27% AzlC protein
AzlDPF054376433197 aa22% Branched-chain amino acid transport protein (AzlD)
A_amylase_inhibPF0135661165 aa51%1hoeAlpha amylase inhibitor
A_deaminPF021377149276 aa33% Adenosine-deaminase (editase) domain
A_deaminasePF0096217647332 aa21%1addAdenosine/AMP deaminase
A_deaminase_NPF08451194597 aa29% Adenosine/AMP deaminase N-terminal
A_thal_3526PF09713134050 aa48% Plant protein 1589 of unknown function (A_thal_3526)

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