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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
AccessionPfam codeDescription
PF02216BB domain
PF04182B-block_TFIIICB-block binding subunit of TFIIIC
PF02246B1Protein L b1 domain
PF02310B12-bindingB12 binding domain
PF02607B12-binding_2B12 binding domain
PF06522B12DNADH-ubiquinone reductase complex 1 MLRQ subunit
PF11473B2RNA binding protein B2
PF09066B2-adapt-app_CBeta2-adaptin appendage, C-terminal sub-domain
PF02362B3B3 DNA binding domain
PF03483B3_4B3/4 domain
PF03484B5tRNA synthetase B5 domain
PF01603B56Protein phosphatase 2A regulatory B subunit (B56 family)
PF07162B9-C2Ciliary basal body-associated, B9 protein
PF07886BA14KBA14K-like protein
PF06989BAALC_NBAALC N-terminus
PF08840BAAT_CBAAT / Acyl-CoA thioester hydrolase C terminal
PF02673BacABacitracin resistance protein BacA
PF05791Bacillus_HBLBacillus haemolytic enterotoxin (HBL)
PF05968Bacillus_PapRBacillus PapR protein
PF07707BACKBTB And C-terminal Kelch
PF13004BACONBacteroidetes-Associated Carbohydrate-binding Often N-terminal
PF10432bact-PGI_CBacterial phospho-glucose isomerase C-terminal region
PF12173BacteriocIIc_cyBacteriocin class IIc cyclic gassericin A-like
PF01721Bacteriocin_IIClass II bacteriocin
PF10439Bacteriocin_IIcBacteriocin class II with double-glycine leader peptide
PF09221Bacteriocin_IIdBacteriocin class IId cyclical uberolysin-like
PF11758Bacteriocin_IIiAureocin-like type II bacteriocin
PF14406Bacteroid_pepRibosomally synthesized peptide in Bacteroidetes
PF04519BactofilinPolymer-forming cytoskeletal
PF08379Bact_transglu_NBacterial transglutaminase-like N-terminal region
PF06143Baculo_11_kDaBaculovirus 11 kDa family
PF04798Baculo_19Baculovirus 19 kDa protein conserved region
PF04631Baculo_44Baculovirus hypothetical protein
PF06096Baculo_8kDaBaculoviridae 8.2 KDa protein
PF04786Baculo_DNA_bindssDNA binding protein
PF05274Baculo_E25Occlusion-derived virus envelope protein E25
PF04639Baculo_E56Baculoviral E56 protein, specific to ODV envelope
PF04850Baculo_E66Baculovirus E66 occlusion-derived virus envelope protein
PF03258Baculo_FPBaculovirus FP protein
PF04700Baculo_gp41Structural glycoprotein p40/gp41 conserved region
PF03273Baculo_gp64Baculovirus gp64 envelope glycoprotein family
PF04735Baculo_helicaseBaculovirus DNA helicase
PF05290Baculo_IE-1Baculovirus immediate-early protein (IE-0)
PF07206Baculo_LEF-10Baculovirus late expression factor 10 (LEF-10)
PF06385Baculo_LEF-11Baculovirus LEF-11 protein
PF03041Baculo_LEF-2lef-2
PF05847Baculo_LEF-3Nucleopolyhedrovirus late expression factor 3 (LEF-3)
PF04838Baculo_LEF5Baculoviridae late expression factor 5
PF11792Baculo_LEF5_CBaculoviridae late expression factor 5 C-terminal domain
PF06061Baculo_ME53Baculoviridae ME53
PF05314Baculo_ODV-E27Baculovirus occlusion-derived virus envelope protein EC27
PF05073Baculo_p24Baculovirus P24 capsid protein
PF04766Baculo_p26Nucleopolyhedrovirus p26 protein
PF05214Baculo_p33Baculovirus P33
PF05112Baculo_p47Baculovirus P47 protein
PF04878Baculo_p48Baculovirus P48 protein
PF04583Baculo_p74Baculoviridae p74 conserved region
PF08404Baculo_p74_NBaculoviridae P74 N-terminal
PF04513Baculo_PEP_CBaculovirus polyhedron envelope protein, PEP, C terminus
PF04512Baculo_PEP_NBaculovirus polyhedron envelope protein, PEP, N terminus
PF05311Baculo_PP31Baculovirus 33KDa late protein (PP31)
PF05883Baculo_RINGBaculovirus U-box/Ring-like domain
PF05789Baculo_VP1054Baculovirus VP1054 protein
PF04501Baculo_VP39Baculovirus major capsid protein VP39
PF08475Baculo_VP91_NViral capsid protein 91 N-terminal
PF04913Baculo_Y142Baculovirus Y142 protein
PF02043Bac_chlorCBacteriochlorophyll C binding protein
PF00308Bac_DnaABacterial dnaA protein
PF08299Bac_DnaA_CBacterial dnaA protein helix-turn-helix
PF00216Bac_DNA_bindingBacterial DNA-binding protein
PF01311Bac_export_1Bacterial export proteins, family 1
PF01312Bac_export_2FlhB HrpN YscU SpaS Family
PF01313Bac_export_3Bacterial export proteins, family 3
PF05088Bac_GDHBacterial NAD-glutamate dehydrogenase
PF01152Bac_globinBacterial-like globin
PF00296Bac_luciferaseLuciferase-like monooxygenase
PF05592Bac_rhamnosidBacterial alpha-L-rhamnosidase
PF08531Bac_rhamnosid_NAlpha-L-rhamnosidase N-terminal domain
PF01036Bac_rhodopsinBacteriorhodopsin-like protein
PF09501Bac_small_YrzIProbable sporulation protein (Bac_small_yrzI)
PF01103Bac_surface_AgSurface antigen
PF01338Bac_thur_toxinBacillus thuringiensis toxin
PF02397Bac_transfBacterial sugar transferase
PF01654Bac_Ubq_CoxBacterial Cytochrome Ubiquinol Oxidase
PF02961BAFBarrier to autointegration factor
PF04684BAF1_ABF1BAF1 / ABF1 chromatin reorganising factor
PF09256BaffR-Tall_bindBAFF-R, TALL-1 binding
PF02179BAGBAG domain
PF08180BAGEB melanoma antigen family
PF01426BAHBAH domain
PF06861BALF1BALF1 protein
PF06211BAMBIBMP and activin membrane-bound inhibitor (BAMBI) N-terminal domain
PF02923BamHIRestriction endonuclease BamHI
PF07565Band_3_cytoBand 3 cytoplasmic domain
PF01145Band_7SPFH domain / Band 7 family
PF13421Band_7_1SPFH domain-Band 7 family
PF06639BAPBasal layer antifungal peptide (BAP)
PF05529Bap31B-cell receptor-associated protein 31-like
PF03114BARBAR domain
PF01337BarstarBarstar (barnase inhibitor)
PF15462BarttinBartter syndrome, infantile, with sensorineural deafness (Barttin)
PF00967BarwinBarwin family
PF10455BAR_2Bin/amphiphysin/Rvs domain for vesicular trafficking
PF10456BAR_3_WASP_bdgWASP-binding domain of Sorting nexin protein
PF04865Baseplate_JBaseplate J-like protein
PF01586BasicMyogenic Basic domain
PF05466BASP1Brain acid soluble protein 1 (BASP1 protein)
PF07001BAT2_NBAT2 N-terminus
PF07584BatAAerotolerance regulator N-terminal
PF13584BatDOxygen tolerance
PF06968BATSBiotin and Thiamin Synthesis associated domain
PF01027Bax1-IInhibitor of apoptosis-promoting Bax1
PF12811BaxI_1Bax inhibitor 1 like
PF08031BBEBerberine and berberine like
PF14777BBIP10Cilia BBSome complex subunit 10
PF15272BBP1_CSpindle pole body component BBP1, C-terminal
PF15271BBP1_NSpindle pole body component BBP1, Mps2-binding protein
PF14779BBS1Ciliary BBSome complex subunit 1
PF14782BBS2_CCiliary BBSome complex subunit 2, C-terminal
PF14783BBS2_MidCiliary BBSome complex subunit 2, middle region
PF14781BBS2_NCiliary BBSome complex subunit 2, N-terminal
PF06726BC10Bladder cancer-related protein BC10
PF05700BCAS2Breast carcinoma amplified sequence 2 (BCAS2)
PF12490BCAS3Breast carcinoma amplified sequence 3
PF12399BCA_ABC_TP_CBranched-chain amino acid ATP-binding cassette transporter
PF02028BCCTBCCT family transporter
PF15461BCDBeta-carotene 15,15'-dioxygenase
PF10436BCDHK_Adom3Mitochondrial branched-chain alpha-ketoacid dehydrogenase kinase
PF07284BCHF2-vinyl bacteriochlorophyllide hydratase (BCHF)
PF02327BChl_ABacteriochlorophyll A protein
PF13862BCIPp21-C-terminal region-binding protein
PF00452Bcl-2Apoptosis regulator proteins, Bcl-2 family
PF12201bcl-2I13Bcl2-interacting killer, BH3-domain containing
PF15286Bcl-2_3Apoptosis regulator M11, B cell 2 leukaemia/lymphoma like
PF10514Bcl-2_BADPro-apoptotic Bcl-2 protein, BAD
PF11502BCL9B-cell lymphoma 9 protein
PF12304BCLPBeta-casein like protein
PF15318BcltPutative Bcl-2 like protein of testis
PF08945Bclx_interactBcl-x interacting, BH3 domain
PF04714BCL_NBCL7, N-terminal conserver region
PF09257BCMA-Tall_bindBCMA, TALL-1 binding
PF07572BCNTBucentaur or craniofacial development
PF09036Bcr-Abl_OligoBcr-Abl oncoprotein oligomerisation domain
PF01869BcrAD_BadFGBadF/BadG/BcrA/BcrD ATPase family
PF08740BCS1_NBCS1 N terminal
PF03170BcsBBacterial cellulose synthase subunit
PF05420BCSC_CCellulose synthase operon protein C C-terminus (BCSC_C)
PF14439Bd3614-deamBd3614-like deaminase
PF14442Bd3614_NBd3614-like deaminase N-terminal
PF08072BDHCTBDHCT (NUC031) domain
PF10684BDMPutative biofilm-dependent modulation protein
PF06208BDV_GBorna disease virus G protein
PF06515BDV_P10Borna disease virus P10 protein
PF06595BDV_P24Borna disease virus P24 protein
PF06407BDV_P40Borna disease virus P40 protein
PF02138BeachBeige/BEACH domain
PF10523BENBEN domain
PF03594BenEBenzoate membrane transport protein
PF07255Benyvirus_14KDaBenyvirus 14KDa protein
PF05744Benyvirus_P25Benyvirus P25/P26 protein
PF02944BESSBESS motif
PF01062BestrophinBestrophin, RFP-TM, chloride channel
PF03494Beta-APPBeta-amyloid peptide (beta-APP)
PF10996Beta-CaspBeta-Casp domain
PF00144Beta-lactamaseBeta-lactamase
PF13354Beta-lactamase2Beta-lactamase enzyme family
PF12125Beta-TrCP_DD domain of beta-TrCP
PF10435BetaGal_dom2Beta-galactosidase, domain 2
PF13363BetaGal_dom3Beta-galactosidase, domain 3
PF13364BetaGal_dom4_5Beta-galactosidase jelly roll domain
PF01212Beta_elim_lyaseBeta-eliminating lyase
PF13229Beta_helixRight handed beta helix region
PF09826Beta_propelBeta propeller domain
PF14350Beta_proteinBeta protein
PF08667BetRBetR domain
PF00407Bet_v_1Pathogenesis-related protein Bet v I family
PF04538BEXBrain expressed X-linked like family
PF02929Bgal_small_NBeta galactosidase small chain
PF15285BH3Beclin-1 BH3 domain, Bcl-2-interacting
PF02180BH4Bcl-2 homology region 4
PF10403BHD_1Rad4 beta-hairpin domain 1
PF10404BHD_2Rad4 beta-hairpin domain 2
PF10405BHD_3Rad4 beta-hairpin domain 3
PF14215bHLH-MYC_NbHLH-MYC and R2R3-MYB transcription factors N-terminal
PF09730BicDMicrotubule-associated protein Bicaudal-D
PF06393BIDBH3 interacting domain (BID)
PF02369Big_1Bacterial Ig-like domain (group 1)
PF02368Big_2Bacterial Ig-like domain (group 2)
PF07523Big_3Bacterial Ig-like domain (group 3)
PF12245Big_3_2Bacterial Ig-like domain (group 3)
PF13750Big_3_3Bacterial Ig-like domain (group 3)
PF13754Big_3_4Bacterial Ig-like domain (group 3)
PF07532Big_4Bacterial Ig-like domain (group 4)
PF13205Big_5Bacterial Ig-like domain
PF04775Bile_Hydr_TransAcyl-CoA thioester hydrolase/BAAT N-terminal region
PF09166Biliv-reduc_catBiliverdin reductase, catalytic
PF06773Bim_NBim protein N-terminus
PF06859Bin3Bicoid-interacting protein 3 (Bin3)
PF03495Binary_toxBClostridial binary toxin B/anthrax toxin PA
PF02084BindinBindin
PF08149BING4CTBING4CT (NUC141) domain
PF00351Biopterin_HBiopterin-dependent aromatic amino acid hydroxylase
PF15368BioT2Spermatogenesis family BioT2
PF02785Biotin_carb_CBiotin carboxylase C-terminal domain
PF00364Biotin_lipoylBiotin-requiring enzyme
PF13533Biotin_lipoyl_2Biotin-lipoyl like
PF03744BioW6-carboxyhexanoate--CoA ligase
PF02632BioYBioY family
PF06832BiPBP_CPenicillin-Binding Protein C-terminus Family
PF00653BIRInhibitor of Apoptosis domain
PF04197Birna_RdRpBirnavirus RNA dependent RNA polymerase (VP1)
PF01766Birna_VP2Birnavirus VP2 protein
PF01767Birna_VP3Birnavirus VP3 protein
PF01768Birna_VP4Birnavirus VP4 protein
PF03042Birna_VP5Birnavirus VP5 protein
PF05858BIV_EnvBovine immunodeficiency virus surface protein (SU)
PF03493BK_channel_aCalcium-activated BK potassium channel alpha subunit
PF07467BLIPBeta-lactamase inhibitor (BLIP)
PF11642Blo-t-5Mite allergen Blo t 5
PF10046BLOC1_2Biogenesis of lysosome-related organelles complex-1 subunit 2
PF12754Blt1Cell-cycle control medial ring component
PF04940BLUFSensors of blue-light using FAD
PF06375BLVRBovine leukaemia virus receptor (BLVR)
PF05289BLYBBorrelia hemolysin accessory protein
PF00936BMCBMC domain
PF15185BMFBcl-2-modifying factor, apoptosis
PF04380BMFPMembrane fusogenic activity
PF09132BmKXBmKX
PF02608BmpBasic membrane protein
PF15282BMP2K_CBMP-2-inducible protein kinase C-terminus
PF12496BNIP2Bcl2-/adenovirus E1B nineteen kDa-interacting protein 2
PF06553BNIP3BNIP3
PF02012BNRBNR/Asp-box repeat
PF13088BNR_2BNR repeat-like domain
PF13859BNR_3BNR repeat-like domain
PF14873BNR_assoc_NN-terminal domain of BNR-repeat neuraminidase
PF04076BOFBacterial OB fold (BOF) protein
PF07441BofASigmaK-factor processing regulatory protein BofA
PF08955BofC_CBofC C-terminal domain
PF08977BOFC_NBypass of Forespore C, N terminal
PF01722BolABolA-like protein
PF02044BombesinBombesin-like peptide
PF05298BombininBombinin
PF08096BombolitinBombolitin family
PF04972BONBON domain
PF08145BOP1NTBOP1NT (NUC169) domain
PF15280BORA_NProtein aurora borealis N-terminus
PF10512BorealinCell division cycle-associated protein 8
PF14957BORG_CEPCdc42 effector
PF05714Borrelia_lipo_1Borrelia burgdorferi virulent strain associated lipoprotein
PF06238Borrelia_lipo_2Borrelia burgdorferi BBR25 lipoprotein
PF02414Borrelia_orfABorrelia ORF-A
PF02999Borrelia_orfDBorrelia orf-D family
PF04160Borrelia_orfXOrf-X protein
PF05628Borrelia_P13Borrelia membrane protein P13
PF05262Borrelia_P83Borrelia P83/100 protein
PF03183Borrelia_repBorrelia repeat protein
PF03978Borrelia_REVBorrelia burgdorferi REV protein
PF12298Bot1pEukaryotic mitochondrial regulator protein
PF05588Botulinum_HA-17Clostridium botulinum HA-17 protein
PF00228Bowman-Birk_legBowman-Birk serine protease inhibitor family
PF08146BP28CTBP28CT (NUC211) domain
PF00528BPD_transp_1Binding-protein-dependent transport system inner membrane component
PF02653BPD_transp_2Branched-chain amino acid transport system / permease component
PF06139BphXBphX-like
PF08000bPH_1Bacterial PH domain
PF03703bPH_2Bacterial PH domain
PF14470bPH_3Bacterial PH domain
PF06713bPH_4Bacterial PH domain
PF10882bPH_5Bacterial PH domain
PF10756bPH_6Bacterial PH domain
PF02237BPL_CBiotin protein ligase C terminal domain
PF03099BPL_LplA_LipBBiotin/lipoate A/B protein ligase family
PF09825BPL_NBiotin-protein ligase, N terminal
PF08947BPSBPS (Between PH and SH2)
PF11564BpuJI_NRestriction endonuclease BpuJI - N terminal
PF15516BpuSI_NBpuSI N-terminal domain
PF06753BradykininBradykinin
PF02485BranchCore-2/I-Branching enzyme
PF05525Branch_AA_transBranched-chain amino acid transport protein
PF07576BRAP2BRCA1-associated protein 2
PF13882Bravo_FIGEYBravo-like intracellular region
PF09169BRCA-2_helicalBRCA2, helical
PF09103BRCA-2_OB1BRCA2, oligonucleotide/oligosaccharide-binding, domain 1
PF09104BRCA-2_OB3BRCA2, oligonucleotide/oligosaccharide-binding, domain 3
PF00634BRCA2BRCA2 repeat
PF00533BRCTBRCA1 C Terminus (BRCT) domain
PF12820BRCT_assocSerine-rich domain associated with BRCT
PF06113BREBrain and reproductive organ-expressed protein (BRE)
PF08647BRE1BRE1 E3 ubiquitin ligase
PF03032BreveninBrevenin/esculentin/gaegurin/rugosin family
PF07741BRF1Brf1-like TBP-binding domain
PF14965BRI3BPNegative regulator of p53/TP53
PF04089BRICHOSBRICHOS domain
PF04427BrixBrix domain
PF07533BRKBRK domain
PF09607BrkDBDBrinker DNA-binding domain
PF02498Bro-NBRO family, N-terminal domain
PF03097BRO1BRO1-like domain
PF14961BROMIBroad-minded protein
PF00439BromodomainBromodomain
PF01318Bromo_coatBromovirus coat protein
PF01573Bromo_MPBromovirus movement protein
PF07524Bromo_TPBromodomain associated
PF10104Brr6_like_C_CDi-sulfide bridge nucleocytoplasmic transport domain
PF05244Brucella_OMP2Brucella outer membrane protein 2
PF08381BRXTranscription factor regulating root and shoot growth via Pin3
PF13713BRX_NTranscription factor BRX N-terminal domain
PF03909BSDBSD domain
PF07832Bse634ICfr10I/Bse634I restriction endonuclease
PF12280BSMAPBrain specific membrane anchored protein
PF04450BSPPeptidase of plants and bacteria
PF05432BSP_IIBone sialoprotein II (BSP-II)
PF08201BssC_TutFBssC/TutF protein
PF13991BssSBssS protein family
PF06616BsuBI_PstI_REBsuBI/PstI restriction endonuclease C-terminus
PF12690BsuPIIntracellular proteinase inhibitor
PF03092BT1BT1 family
PF03704BTADBacterial transcriptional activator domain
PF00651BTBBTB/POZ domain
PF02214BTB_2BTB/POZ domain
PF09270BTDBeta-trefoil DNA-binding domain
PF07742BTGBTG family
PF00779BTKBTK motif
PF05232BTPBacterial Transmembrane Pair family
PF03437BtpABtpA family
PF04514BTV_NS2Bluetongue virus non-structural protein NS2
PF09405BtzCASC3/Barentsz eIF4AIII binding
PF05560Bt_P21Bacillus thuringiensis P21 molecular chaperone protein
PF09736Bud13Pre-mRNA-splicing factor of RES complex
PF09073BUD22BUD22
PF04426Bul1_CBul1 C terminus
PF04425Bul1_NBul1 N terminus
PF05307BundlinBundlin
PF03557Bunya_G1Bunyavirus glycoprotein G1
PF03563Bunya_G2Bunyavirus glycoprotein G2
PF01104Bunya_NS-SBunyavirus non-structural protein NS-s
PF03231Bunya_NS-S_2Bunyavirus non-structural protein NS-S
PF00952Bunya_nucleocapBunyavirus nucleocapsid (N) protein
PF04196Bunya_RdRpBunyavirus RNA dependent RNA polymerase
PF03181BURPBURP domain
PF09792But2Ubiquitin 3 binding protein But2 C-terminal domain
PF04681Bys1Blastomyces yeast-phase-specific protein
PF05291BystinBystin
PF00170bZIP_1bZIP transcription factor
PF07716bZIP_2Basic region leucine zipper
PF12498bZIP_CBasic leucine-zipper C terminal
PF03131bZIP_MafbZIP Maf transcription factor
PF01453B_lectinD-mannose binding lectin