Pfam 22.0 :: Browse Families

Pfam 22.0 :: Browse Families - I
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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

Name	acc number	#seed	#full	av. len	av. %id	structure	Description
I
I-set	PF07679	53	7939	88 aa	24%		Immunoglobulin I-set domain
IalB	PF06776	18	124	129 aa	24%		Invasion associated locus B (IalB) protein
IATP	PF04568	11	54	63 aa	40%	1hf9	Mitochondrial ATPase inhibitor, IATP
IBB	PF01749	18	180	93 aa	34%	1bk5	Importin beta binding domain
IBN_N	PF03810	52	510	71 aa	20%	1qbk	Importin-beta N-terminal domain
IBR	PF01485	29	565	63 aa	26%		IBR domain
IBV_3A	PF03617	2	32	57 aa	85%		IBV 3A protein
IBV_3B	PF03622	2	31	63 aa	77%		IBV 3B protein
IBV_3C	PF03620	2	60	91 aa	89%		IBV 3C protein
ICA69	PF04629	5	25	157 aa	47%		Islet cell autoantigen ICA69, C-terminal domain
ICAM_N	PF03921	5	73	100 aa	37%	1zxq	Intercellular adhesion molecule (ICAM), N-terminal domain
ICAT	PF06384	2	23	79 aa	58%	1m1e	Beta-catenin-interacting protein ICAT
ICE2	PF08426	8	22	407 aa	39%		ICE2
ICEA	PF05315	2	25	199 aa	81%		ICEA Protein
IceA2	PF05862	3	8	71 aa	79%		Helicobacter pylori IceA2 protein
Ice_nucleation	PF00818	110	1010	16 aa	54%	1ina	Ice nucleation protein repeat
ICL	PF00463	7	677	288 aa	43%	1f8m	Isocitrate lyase family
ICln_channel	PF03517	5	27	77 aa	55%		Nucleotide-sensitive chloride conductance regulator (ICln)
IclR	PF01614	23	1647	124 aa	24%	1mkm	Bacterial transcriptional regulator
ICMT	PF04140	12	386	85 aa	27%		Isoprenylcysteine carboxyl methyltransferase (ICMT) family
IDEAL	PF08858	33	85	36 aa	35%		IDEAL domain
IDH	PF03971	5	205	685 aa	63%	1itw	Monomeric isocitrate dehydrogenase
IDO	PF01231	4	65	351 aa	33%		Indoleamine 2,3-dioxygenase
IER	PF05760	6	33	258 aa	39%		Immediate early response protein (IER)
IF-2B	PF01008	18	580	272 aa	28%		Initiation factor 2 subunit family
IF2_assoc	PF08364	29	226	40 aa	43%		Bacterial translation initiation factor IF-2 associated region
IF2_N	PF04760	61	933	52 aa	26%	1nd9	Translation initiation factor IF-2, N-terminal region
IF3_C	PF00707	22	594	87 aa	45%	1tif	Translation initiation factor IF-3, C-terminal domain
IF3_N	PF05198	39	587	68 aa	49%	1tif	Translation initiation factor IF-3, N-terminal domain
IF4E	PF01652	13	298	196 aa	31%	1ap8	Eukaryotic initiation factor 4E
Ifi-6-16	PF06140	9	67	74 aa	58%		Interferon-induced 6-16 family
IFN-gamma	PF00714	9	120	112 aa	57%	1rfb	Interferon gamma
IFNGR1	PF07140	3	28	321 aa	60%	1fg9	Interferon gamma receptor alpha chain (IFNGR1)
IFP_35_N	PF07334	4	13	72 aa	43%		Interferon-induced 35 kDa protein (IFP 35) N-terminus
IFRD	PF05004	7	60	270 aa	34%		Interferon-related developmental regulator (IFRD)
IFRD_C	PF04836	6	38	55 aa	59%		Interferon-related protein conserved region
IF_tail	PF00932	23	153	113 aa	37%	1ivt	Intermediate filament tail domain
ig	PF00047	89	6109	61 aa	20%	8fab	Immunoglobulin domain
IgaA	PF07095	3	28	687 aa	65%		Intracellular growth attenuator protein IgaA
IGF2_C	PF08365	8	89	52 aa	65%		Insulin-like growth factor II E-peptide
IGFBP	PF00219	11	175	62 aa	41%	1boe	Insulin-like growth factor binding protein
IgG_binding_B	PF01378	5	29	53 aa	73%	1pgb	B domain
IGPD	PF00475	11	531	144 aa	49%	1rhy	Imidazoleglycerol-phosphate dehydratase
IGPS	PF00218	20	1279	192 aa	48%	1pii	Indole-3-glycerol phosphate synthase
IGR	PF09597	20	34	55 aa	37%		IGR protein motif
IIGP	PF05049	6	79	330 aa	40%		Interferon-inducible GTPase (IIGP)
IKI3	PF04762	6	60	816 aa	33%		IKI3 family
IL1	PF00340	16	220	119 aa	27%	1i1b	Interleukin-1 / 18
IL10	PF00726	3	154	139 aa	51%	1ilk	Interleukin 10
IL11	PF07400	3	6	188 aa	71%		Interleukin 11
IL12	PF03039	3	44	187 aa	60%	1f45	Interleukin-12 alpha subunit
IL13	PF03487	4	23	43 aa	78%	1ga3	Interleukin-13
IL15	PF02372	7	55	119 aa	46%		Interleukin 15
IL17	PF06083	12	55	138 aa	35%	1jpy	Interleukin-17
IL1_propep	PF02394	23	98	93 aa	39%	2mib	Interleukin-1 propeptide
IL2	PF00715	7	99	124 aa	65%	3ink	Interleukin 2
IL3	PF02059	5	21	114 aa	51%	1jli	Interleukin-3
IL4	PF00727	8	77	111 aa	53%	2int	Interleukin 4
IL4Ra_N	PF09238	6	14	95 aa	57%	1iar	Interleukin-4 receptor alpha chain, N-terminal
IL5	PF02025	6	24	105 aa	68%	1hul	Interleukin 5
IL6	PF00489	10	93	135 aa	36%	1bgc	Interleukin-6/G-CSF/MGF family
IL6Ra-bind	PF09240	5	11	100 aa	52%	1n26	Interleukin-6 receptor alpha chain, binding
IL7	PF01415	5	25	120 aa	53%	1il7	Interleukin 7/9 family
IL8	PF00048	105	681	64 aa	26%	3il8	Small cytokines (intecrine/chemokine), interleukin-8 like
Ilar_coat	PF01787	8	249	193 aa	39%		Ilarvirus coat protein
IlvB_leader	PF08049	2	12	31 aa	87%		IlvB leader peptide
IlvC	PF01450	19	560	168 aa	47%	1yve	Acetohydroxy acid isomeroreductase, catalytic domain
ILVD_EDD	PF00920	51	1026	519 aa	39%		Dehydratase family
IlvGEDA_leader	PF08046	2	15	32 aa	93%		IlvGEDA operon leader peptide
IlvN	PF07991	45	569	163 aa	49%	1yve	Acetohydroxy acid isomeroreductase, catalytic domain
ImcF-related	PF06761	23	201	304 aa	22%		ImcF-related
IMD	PF08397	9	72	198 aa	35%		IRSp53/MIM homology domain
Img2	PF05046	5	42	64 aa	39%		Mitochondrial large subunit ribosomal protein (Img2)
ImpA-rel_N	PF06812	24	214	61 aa	30%		ImpA-related N-terminal
IMPDH	PF00478	84	1024	373 aa	39%	1ak5	IMP dehydrogenase / GMP reductase domain
ImpE	PF07024	6	57	252 aa	34%		ImpE protein
IMP_cyclohyd	PF07826	6	14	198 aa	39%		IMP cyclohydrolase-like protein
IMS	PF00817	26	1187	314 aa	26%	1jih	impB/mucB/samB family
IncA	PF04156	32	112	198 aa	17%		IncA protein
INCENP_ARK-bind	PF03941	6	33	55 aa	36%		Inner centromere protein, ARK binding region
IncFII_repA	PF02387	10	92	245 aa	46%		IncFII RepA protein family
Indigoidine_A	PF04227	10	141	288 aa	51%		Indigoidine synthase A like protein
Inh	PF02974	7	30	98 aa	38%	1smp	Protease inhibitor Inh
Inhibitor_I29	PF08246	110	1355	56 aa	31%		Cathepsin propeptide inhibitor domain (I29)
Inhibitor_I36	PF03995	7	7	95 aa	22%	1bhu	Peptidase inhibitor family I36
Init_tRNA_PT	PF04179	4	30	418 aa	35%		Initiator tRNA phosphoribosyl transferase
Innexin	PF00876	13	152	330 aa	27%		Innexin
Inos-1-P_synth	PF01658	22	238	110 aa	41%	1gr0	Myo-inositol-1-phosphate synthase
Inositol_P	PF00459	64	1552	247 aa	25%	2hhm	Inositol monophosphatase family
Ins134_P3_kin	PF05770	5	47	286 aa	34%		Inositol 1, 3, 4-trisphosphate 5/6-kinase
Ins145_P3_rec	PF08709	19	117	169 aa	34%		Inositol 1,4,5-trisphosphate/ryanodine receptor
INSIG	PF07281	5	44	158 aa	61%		Insulin-induced protein (INSIG)
Insulin	PF00049	28	536	66 aa	44%	1cph	Insulin/IGF/Relaxin family
Ins_allergen_rp	PF06757	12	92	71 aa	34%		Insect allergen related repeat
Ins_beta	PF03488	11	31	47 aa	31%		Nematode insulin-related peptide beta type
Ins_element1	PF03811	4	245	77 aa	45%		Insertion element protein
Integrase	PF00552	38	2159	50 aa	81%	1ihw	Integrase DNA binding domain
Integrase_DNA	PF02920	4	42	63 aa	38%	1b69	DNA binding domain of tn916 integrase
Integrase_Zn	PF02022	67	2620	39 aa	68%	1wjb	Integrase Zinc binding domain
Integrin_alpha	PF00357	27	149	15 aa	49%	1dpk	Integrin alpha cytoplasmic region
Integrin_alpha2	PF08441	50	257	391 aa	21%		Integrin alpha
Integrin_beta	PF00362	17	201	338 aa	43%	1jv2	Integrin, beta chain
Integrin_b_cyt	PF08725	28	125	44 aa	52%	1m8O	Integrin beta cytoplasmic domain
Integrin_B_tail	PF07965	35	135	80 aa	31%	1jv2	Integrin beta tail domain
Interfer-bind	PF09294	3	12	102 aa	68%	1n6u	Interferon-alpha/beta receptor, fibronectin type III
Interferon	PF00143	17	375	164 aa	43%	1au1	Interferon alpha/beta domain
Intg_mem_TP0381	PF09529	29	72	223 aa	25%		Integral membrane protein (intg_mem_TP0381)
Intimin_C	PF07979	14	166	73 aa	44%		Intimin C-type lectin domain
Intron_maturas2	PF01348	25	11541	116 aa	62%		Type II intron maturase
Invasin_D3	PF09134	2	6	99 aa	74%	1cwv	Invasin, domain 3
Invas_B	PF03518	2	64	224 aa	73%		Salmonella/Shigella invasin protein B
Invas_SpaK	PF03519	3	16	79 aa	41%	1ry9	Invasion protein B family
InvE	PF02523	2	42	355 aa	47%		InvE invasion protein
Invertase_neut	PF04853	5	93	388 aa	51%		Plant neutral invertase
InvH	PF04741	3	17	147 aa	89%		InvH outer membrane lipoprotein
Involucrin	PF00904	131	560	10 aa	56%	1eu0	Involucrin repeat
Involucrin2	PF06994	29	256	41 aa	55%		Involucrin
IolB	PF06845	13	116	244 aa	40%		Myo-inositol catabolism protein IolB
Ion_trans	PF00520	320	4343	187 aa	18%	1bl8	Ion transport protein
Ion_trans_2	PF07885	127	1906	75 aa	23%	1bl8	Ion channel
Ion_trans_N	PF08412	3	65	71 aa	64%		Ion transport protein N-terminal
IpaB_EvcA	PF03278	5	30	147 aa	38%		IpaB/EvcA family
IpaC_SipC	PF09599	5	17	345 aa	34%		Salmonella-Shigella invasin protein C (IpaC_SipC)
IpaD	PF06511	2	58	221 aa	66%		Invasion plasmid antigen IpaD
IpgD	PF05925	2	38	500 aa	69%		Enterobacterial virulence protein IpgD
iPGM_N	PF06415	35	387	349 aa	44%	1o99	BPG-independent PGAM N-terminus (iPGM_N)
IPK	PF03770	17	208	279 aa	24%		Inositol polyphosphate kinase
IPP-2	PF04979	6	49	123 aa	43%		Protein phosphatase inhibitor 2 (IPP-2)
IPPT	PF01715	12	682	249 aa	32%		IPP transferase
IPT	PF01745	7	36	216 aa	48%		Isopentenyl transferase
IP_trans	PF02121	5	104	230 aa	46%	1fvz	Phosphatidylinositol transfer protein
IQ	PF00612	354	4654	21 aa	29%	1wdc	IQ calmodulin-binding motif
IRF	PF00605	4	212	102 aa	46%	1if1	Interferon regulatory factor transcription factor
IRK	PF01007	14	253	301 aa	46%	1n9p	Inward rectifier potassium channel
IRK_N	PF08466	2	33	45 aa	74%		Inward rectifier potassium channel N-terminal
Iron_permease	PF04120	2	8	518 aa	40%		Low affinity iron permease
Iron_traffic	PF04362	4	183	87 aa	52%		Bacterial Fe(2+) trafficking
IRS	PF02174	9	99	96 aa	33%	1irs	PTB domain (IRS-1 type)
ISAV_HA	PF06215	3	184	282 aa	84%		Infectious salmon anaemia virus haemagglutinin
ISK_Channel	PF02060	3	37	70 aa	51%		Slow voltage-gated potassium channel
ISN1	PF06437	3	22	416 aa	50%		IMP-specific 5'-nucleotidase
Isoamylase_N	PF02922	59	1352	83 aa	25%	1bf2	Isoamylase N-terminal domain
Isochorismatase	PF00857	13	1640	178 aa	20%	1nba	Isochorismatase family
Iso_dh	PF00180	23	2142	323 aa	31%	1hex	Isocitrate/isopropylmalate dehydrogenase
IspA	PF04279	12	222	177 aa	37%		Intracellular septation protein A
IspD	PF01128	6	913	151 aa	34%	1inj	Uncharacterized protein family UPF0007
IstB	PF01695	17	738	147 aa	32%		IstB-like ATP binding protein
IstB_N	PF08483	15	108	30 aa	46%		IstB-like ATP binding N-terminal
Isy1	PF06246	5	55	231 aa	38%		Isy1-like splicing family
ITAM	PF02189	12	137	21 aa	33%	1a81	Immunoreceptor tyrosine-based activation motif
ITI_HC_C	PF06668	10	71	183 aa	38%		Inter-alpha-trypsin inhibitor heavy chain C-terminus
IucA_IucC	PF04183	20	325	429 aa	22%		IucA / IucC family
IU_nuc_hydro	PF01156	9	622	307 aa	28%	2mas	Inosine-uridine preferring nucleoside hydrolase
Ivy	PF08816	11	45	117 aa	37%	1gpq	Inhibitor of vertebrate lysozyme (Ivy)
IWS1_C	PF05909	6	56	233 aa	32%		IWS1 C-terminus
I_LWEQ	PF01608	8	97	187 aa	43%		I/LWEQ domain

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