Browse through the Pfam families on this page.

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0-9 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

C-C_Bond_Lyase PF15617.1 C-C_Bond_Lyase of the TIM-Barrel fold

C-term_anchor PF13461.1 Cell-wall surface anchor repeat

C1-set PF07654.10 Immunoglobulin C1-set domain

C1q PF00386.16 C1q domain

C1_1 PF00130.17 Phorbol esters/diacylglycerol binding domain (C1 domain)

C1_2 PF03107.11 C1 domain

C1_3 PF07649.7 C1-like domain

C1_4 PF07975.7 TFIIH C1-like domain

C2 PF00168.25 C2 domain

C2-set PF05790.10 Immunoglobulin C2-set domain

C2-set_2 PF08205.7 CD80-like C2-set immunoglobulin domain

C4 PF01413.14 C-terminal tandem repeated domain in type 4 procollagen

C5-epim_C PF06662.8 D-glucuronyl C5-epimerase C-terminus

C6 PF01681.12 C6 domain

C6_DPF PF10170.4 Cysteine-rich domain

C8 PF08742.6 C8 domain

C9orf72-like PF15019.1 C9orf72-like protein family

Caa3_CtaG PF09678.5 Cytochrome c oxidase caa3 assembly factor (Caa3_CtaG)

CAAD PF14159.1 CAAD domains of cyanobacterial aminoacyl-tRNA synthetase

CAAP1 PF15335.1 Caspase activity and apoptosis inhibitor 1

CaATP_NAI PF12515.3 Ca2+-ATPase N terminal autoinhibitory domain

CABIT PF12736.2 Cell-cycle sustaining, positive selection,

CABS1 PF15367.1 Calcium-binding and spermatid-specific protein 1

Cache_1 PF02743.13 Cache domain

Cache_2 PF08269.6 Cache domain

Cache_3 PF14827.1 Sensory domain of two-component sensor kinase

CactinC_cactus PF09732.4 Cactus-binding C-terminus of cactin protein

Cactin_mid PF10312.4 Conserved mid region of cactin

Cad PF03596.8 Cadmium resistance transporter

Cadherin PF00028.12 Cadherin domain

Cadherin-like PF12733.2 Cadherin-like beta sandwich domain

Cadherin_2 PF08266.7 Cadherin-like

Cadherin_C PF01049.12 Cadherin cytoplasmic region

Cadherin_pro PF08758.6 Cadherin prodomain like

Caenor_Her-1 PF09232.5 Caenorhabditis elegans Her-1

Caerin_1 PF07440.7 Caerin 1 protein

CAF-1_p150 PF11600.3 Chromatin assembly factor 1 complex p150 subunit, N-terminal

CAF-1_p60_C PF15512.1 Chromatin assembly factor complex 1 subunit p60, C-terminal

CAF1 PF04857.15 CAF1 family ribonuclease

CAF1-p150_C2 PF15539.1 CAF1 complex subunit p150, region binding to CAF1-p60 at C-term

CAF1-p150_N PF15557.1 CAF1 complex subunit p150, region binding to PCNA

CAF1A PF12253.3 Chromatin assembly factor 1 subunit A

CAF1C_H4-bd PF12265.3 Histone-binding protein RBBP4 or subunit C of CAF1 complex

Cag12 PF13117.1 Cag pathogenicity island protein Cag12

CagA PF03507.8 CagA exotoxin

CAGE1 PF15066.1 Cancer-associated gene protein 1 family

CagE_TrbE_VirB PF03135.9 CagE, TrbE, VirB family, component of type IV transporter system

CagX PF03524.10 Conjugal transfer protein

CagY_I PF14585.1 CagY type 1 repeat

CagY_M PF07337.6 DC-EC Repeat

CagZ PF09053.5 CagZ

CaKB PF03185.10 Calcium-activated potassium channel, beta subunit

Calcipressin PF04847.7 Calcipressin

Calci_bind_CcbP PF11535.3 Calcium binding

CALCOCO1 PF07888.6 Calcium binding and coiled-coil domain (CALCOCO1) like

Calcyon PF06387.6 D1 dopamine receptor-interacting protein (calcyon)

Calc_CGRP_IAPP PF00214.14 Calcitonin / CGRP / IAPP family

Caldesmon PF02029.10 Caldesmon

Caleosin PF05042.8 Caleosin related protein

Calici_coat PF00915.15 Calicivirus coat protein

Calici_coat_C PF08435.6 Calicivirus coat protein C-terminal

Calici_MSP PF05752.6 Calicivirus minor structural protein

Calici_PP_N PF08405.6 Viral polyprotein N-terminal

Calmodulin_bind PF07887.6 Calmodulin binding protein-like

Calpain_III PF01067.17 Calpain large subunit, domain III

Calpain_inhib PF00748.14 Calpain inhibitor

Calponin PF00402.13 Calponin family repeat

Calreticulin PF00262.13 Calreticulin family

Calsarcin PF05556.6 Calcineurin-binding protein (Calsarcin)

Calsequestrin PF01216.12 Calsequestrin

Calx-beta PF03160.9 Calx-beta domain

CaM-KIIN PF15170.1 Calcium/calmodulin-dependent protein kinase II inhibitor

CaMBD PF02888.11 Calmodulin binding domain

CaMKII_AD PF08332.5 Calcium/calmodulin dependent protein kinase II Association

CAML PF14963.1 Calcium signal-modulating cyclophilin ligand

Campylo_MOMP PF05538.6 Campylobacter major outer membrane protein

CAMP_factor PF07373.6 CAMP factor (Cfa)

CamS PF07537.6 CamS sex pheromone cAM373 precursor

CAMSAP_CH PF11971.3 CAMSAP CH domain

CAMSAP_CKK PF08683.6 Microtubule-binding calmodulin-regulated spectrin-associated

CaM_bdg_C0 PF10562.4 Calmodulin-binding domain C0 of NMDA receptor NR1 subunit

CaM_binding PF07839.6 Plant calmodulin-binding domain

Candida_ALS PF05792.8 Candida agglutinin-like (ALS)

Candida_ALS_N PF11766.3 Cell-wall agglutinin N-terminal ligand-sugar binding

CAP PF00188.21 Cysteine-rich secretory protein family

CAP-ZIP_m PF15255.1 WASH complex subunit CAP-Z interacting, central region

CAP160 PF07918.6 CAP160 repeat

CAP18_C PF12153.3 LPS binding domain of CAP18 (C terminal)

CAP59_mtransfer PF11735.3 Cryptococcal mannosyltransferase 1

Caprin-1_C PF12287.3 Cytoplasmic activation/proliferation-associated protein-1 C term

Capsid-VNN PF11729.3 nodavirus capsid protein

Capsid_NCLDV PF04451.7 Large eukaryotic DNA virus major capsid protein

Capsule_synth PF05159.9 Capsule polysaccharide biosynthesis protein

Caps_assemb_Wzi PF14052.1 Capsule assembly protein Wzi

Caps_synth PF05704.7 Capsular polysaccharide synthesis protein

Caps_synth_CapC PF14102.1 Capsule biosynthesis CapC

Caps_synth_GfcC PF06251.6 Capsule biosynthesis GfcC

CAP_assoc_N PF14504.1 CAP-associated N-terminal

CAP_C PF08603.6 Adenylate cyclase associated (CAP) C terminal

CAP_GLY PF01302.20 CAP-Gly domain

CAP_N PF01213.14 Adenylate cyclase associated (CAP) N terminal

Cap_synth_GfcB PF11102.3 Group 4 capsule polysaccharide formation lipoprotein gfcB

Carboxyl_trans PF01039.17 Carboxyl transferase domain

CarboxypepD_reg PF13620.1 Carboxypeptidase regulatory-like domain

CarbpepA_inh PF02977.10 Carboxypeptidase A inhibitor

Carbpep_Y_N PF05388.6 Carboxypeptidase Y pro-peptide

Carb_anhydrase PF00194.16 Eukaryotic-type carbonic anhydrase

Carb_bind PF10645.4 Carbohydrate binding

Carb_kinase PF01256.12 Carbohydrate kinase

Carcinustatin PF08261.7 Carcinustatin peptide

CARD PF00619.16 Caspase recruitment domain


CarD_CdnL_TRCF PF02559.11 CarD-like/TRCF domain

Carla_C4 PF01623.12 Carlavirus putative nucleic acid binding protein

CARM1 PF11531.3 Coactivator-associated arginine methyltransferase 1 N terminal

Carmo_coat_C PF08462.5 Carmovirus coat protein

Carn_acyltransf PF00755.15 Choline/Carnitine o-acyltransferase

Carot_N PF09150.5 Orange carotenoid protein, N-terminal

CART PF06373.6 Cocaine and amphetamine regulated transcript protein (CART)

Cas1_AcylT PF07779.7 10 TM Acyl Transferase domain found in Cas1p

Cas6 PF09559.5 Cas6 Crispr

Casc1 PF12366.3 Cancer susceptibility candidate 1

Casein PF00363.13 Casein

Casein_kappa PF00997.13 Kappa casein

CASP_C PF08172.7 CASP C terminal

Cass2 PF14526.1 Integron-associated effector binding protein

Cast PF10174.4 RIM-binding protein of the cytomatrix active zone

Cas_APE2256 PF09651.5 CRISPR-associated protein (Cas_APE2256)

Cas_Cas02710 PF09670.5 CRISPR-associated protein (Cas_Cas02710)

Cas_Cas1 PF01867.11 CRISPR associated protein Cas1

Cas_Cas2CT1978 PF09707.5 CRISPR-associated protein (Cas_Cas2CT1978)

Cas_Cas4 PF01930.12 Domain of unknown function DUF83

Cas_Cas5d PF09704.5 CRISPR-associated protein (Cas_Cas5)

Cas_Cas6 PF01881.11 CRISPR associated protein Cas6

Cas_Cmr3 PF09700.5 CRISPR-associated protein (Cas_Cmr3)

Cas_Cmr5 PF09701.5 CRISPR-associated protein (Cas_Cmr5)

Cas_Csa4 PF09703.5 CRISPR-associated protein (Cas_Csa4)

Cas_Csa5 PF09702.5 CRISPR-associated protein (Cas_Csa5)

Cas_Csd1 PF09709.5 CRISPR-associated protein (Cas_Csd1)

CAS_CSE1 PF03378.10 CAS/CSE protein, C-terminus

Cas_Csm6 PF09659.5 CRISPR-associated protein (Cas_Csm6)

Cas_Csn2 PF09711.5 CRISPR-associated protein (Cas_Csn2)

Cas_csx3 PF09620.5 CRISPR-associated protein (Cas_csx3)

Cas_Csx8 PF09657.5 CRISPR-associated protein Csx8 (Cas_Csx8)

Cas_Csx9 PF09658.5 CRISPR-associated protein (Cas_Csx9)

Cas_Csy1 PF09611.5 CRISPR-associated protein (Cas_Csy1)

Cas_Csy2 PF09614.5 CRISPR-associated protein (Cas_Csy2)

Cas_Csy3 PF09615.5 CRISPR-associated protein (Cas_Csy3)

Cas_Csy4 PF09618.5 CRISPR-associated protein (Cas_Csy4)

Cas_CT1975 PF09344.5 CT1975-like protein

Cas_CXXC_CXXC PF09706.5 CRISPR-associated protein (Cas_CXXC_CXXC)

Cas_DxTHG PF09455.5 CRISPR-associated (Cas) DxTHG family

Cas_GSU0053 PF09617.5 CRISPR-associated protein GSU0053 (Cas_GSU0053)

Cas_GSU0054 PF09609.5 CRISPR-associated protein, GSU0054 family (Cas_GSU0054)

Cas_NE0113 PF09623.5 CRISPR-associated protein NE0113 (Cas_NE0113)

Cas_TM1802 PF09484.5 CRISPR-associated protein TM1802 (cas_TM1802)

Cas_VVA1548 PF09652.5 Putative CRISPR-associated protein (Cas_VVA1548)

CAT PF00302.13 Chloramphenicol acetyltransferase

Catalase PF00199.14 Catalase

Catalase-rel PF06628.7 Catalase-related immune-responsive

Cathelicidins PF00666.12 Cathelicidin

CathepsinC_exc PF08773.6 Cathepsin C exclusion domain

Cation_ATPase_C PF00689.16 Cation transporting ATPase, C-terminus

Cation_ATPase_N PF00690.21 Cation transporter/ATPase, N-terminus

Cation_efflux PF01545.16 Cation efflux family

CATSPERB PF15149.1 Cation channel sperm-associated protein subunit beta protein family

CATSPERD PF15020.1 Cation channel sperm-associated protein subunit delta

CATSPERG PF15064.1 Cation channel sperm-associated protein subunit gamma

CAT_RBD PF03123.10 CAT RNA binding domain

Caudal_act PF04731.7 Caudal like protein activation region

Caudo_TAP PF02413.12 Caudovirales tail fibre assembly protein

Cauli_AT PF03233.8 Aphid transmission protein

Cauli_DNA-bind PF03310.8 Caulimovirus DNA-binding protein

Cauli_VI PF01693.11 Caulimovirus viroplasmin

Caveolin PF01146.12 Caveolin

CAV_VP3 PF04771.7 Chicken anaemia virus VP-3 protein

Ca_chan_IQ PF08763.6 Voltage gated calcium channel IQ domain

Ca_hom_mod PF14798.1 Calcium homeostasis modulator

CBAH PF02275.13 Linear amide C-N hydrolases, choloylglycine hydrolase family

CbbQ_C PF08406.5 CbbQ/NirQ/NorQ C-terminal

CBF PF03914.12 CBF/Mak21 family

CBFB_NFYA PF02045.10 CCAAT-binding transcription factor (CBF-B/NF-YA) subunit B

CBFD_NFYB_HMF PF00808.18 Histone-like transcription factor (CBF/NF-Y) and archaeal histone

CBFNT PF08143.6 CBFNT (NUC161) domain

CBF_beta PF02312.12 Core binding factor beta subunit

CbiA PF01656.18 CobQ/CobB/MinD/ParA nucleotide binding domain

CbiC PF02570.10 Precorrin-8X methylmutase

CbiD PF01888.12 CbiD

CbiG_C PF01890.11 Cobalamin synthesis G C-terminus

CbiG_mid PF11761.3 Cobalamin biosynthesis central region

CbiG_N PF11760.3 Cobalamin synthesis G N-terminal

CbiJ PF02571.9 Precorrin-6x reductase CbiJ/CobK

CbiK PF06180.6 Cobalt chelatase (CbiK)

CbiM PF01891.11 Cobalt uptake substrate-specific transmembrane region

CbiN PF02553.10 Cobalt transport protein component CbiN

CbiQ PF02361.11 Cobalt transport protein

CbiX PF01903.12 CbiX

CbiZ PF01955.13 Adenosylcobinamide amidohydrolase

CblD PF07434.6 CblD like pilus biogenesis initiator

Cbl_N PF02262.11 CBL proto-oncogene N-terminal domain 1

Cbl_N2 PF02761.9 CBL proto-oncogene N-terminus, EF hand-like domain

Cbl_N3 PF02762.9 CBL proto-oncogene N-terminus, SH2-like domain

CBM-like PF14683.1 Polysaccharide lyase family 4, domain III

CBM27 PF09212.5 Carbohydrate binding module 27

CBM49 PF09478.5 Carbohydrate binding domain CBM49

CBM_1 PF00734.13 Fungal cellulose binding domain

CBM_10 PF02013.11 Cellulose or protein binding domain

CBM_11 PF03425.8 Carbohydrate binding domain (family 11)

CBM_14 PF01607.19 Chitin binding Peritrophin-A domain

CBM_15 PF03426.9 Carbohydrate binding domain (family 15)

CBM_17_28 PF03424.9 Carbohydrate binding domain (family 17/28)

CBM_19 PF03427.8 Carbohydrate binding domain (family 19)

CBM_2 PF00553.14 Cellulose binding domain

CBM_20 PF00686.14 Starch binding domain

CBM_21 PF03370.8 Putative phosphatase regulatory subunit

CBM_25 PF03423.8 Carbohydrate binding domain (family 25)

CBM_3 PF00942.13 Cellulose binding domain

CBM_48 PF02922.13 Carbohydrate-binding module 48 (Isoamylase N-terminal domain)

CBM_4_9 PF02018.12 Carbohydrate binding domain

CBM_5_12 PF02839.9 Carbohydrate binding domain

CBM_5_12_2 PF14600.1 Cellulose-binding domain

CBM_6 PF03422.10 Carbohydrate binding module (family 6)

CBM_X PF06204.6 Putative carbohydrate binding domain

CBM_X2 PF03442.9 Carbohydrate binding domain X2

CBP PF12192.3 Fungal calcium binding protein

CBP4 PF07960.6 CBP4

CBS PF00571.23 CBS domain

CbtA PF09490.5 Probable cobalt transporter subunit (CbtA)

CbtB PF09489.5 Probable cobalt transporter subunit (CbtB)

CC PF04942.9 CC domain

CC2D2AN-C2 PF15625.1 CC2D2A N-terminal C2 domain

CCAP PF11105.3 Arthropod cardioacceleratory peptide 2a

CCD PF07860.6 WisP family C-Terminal Region

CcdA PF07362.7 Post-segregation antitoxin CcdA

CcdB PF01845.12 CcdB protein

CCDC-167 PF15188.1 Coiled-coil domain-containing protein 167

CCDC14 PF15254.1 Coiled-coil domain-containing protein 14

CCDC142 PF14923.1 Coiled-coil protein 142

CCDC144C PF14915.1 CCDC144C protein coiled-coil region

CCDC155 PF14662.1 Coiled-coil region of CCDC155

CCDC32 PF14989.1 Coiled-coil domain containing 32

CCDC50_N PF15295.1 Coiled-coil domain-containing protein 50 N-terminus

CCDC66 PF15236.1 Coiled-coil domain-containing protein 66

CCDC71L PF15374.1 Coiled-coil domain-containing protein 71L

CCDC74_C PF14917.1 Coiled coil protein 74, C terminal

CCDC84 PF14968.1 Coiled coil protein 84

CCDC92 PF14916.1 Coiled-coil domain of unknown function

CCER1 PF15482.1 Coiled-coil domain-containing glutamate-rich protein family 1

CCG PF02754.11 Cysteine-rich domain

CcmB PF03379.8 CcmB protein

CcmD PF04995.9 Heme exporter protein D (CcmD)

CcmE PF03100.10 CcmE

CcmH PF03918.9 Cytochrome C biogenesis protein

CcoS PF03597.10 Cytochrome oxidase maturation protein cbb3-type

CCP_MauG PF03150.9 Di-haem cytochrome c peroxidase

CCSMST1 PF15013.1 CCSMST1 family

CCT PF06203.9 CCT motif

CCT_2 PF09425.5 Divergent CCT motif

CD20 PF04103.10 CD20-like family

CD24 PF14984.1 CD24 protein

CD34_antigen PF06365.7 CD34/Podocalyxin family

CD36 PF01130.16 CD36 family

CD4-extracel PF09191.5 CD4, extracellular

CD45 PF12567.3 Leukocyte receptor CD45

CD47 PF04549.9 CD47 transmembrane region

CD52 PF15116.1 CAMPATH-1 antigen

CD99L2 PF12301.3 CD99 antigen like protein 2

CDC14 PF08045.6 Cell division control protein 14, SIN component

CDC24 PF06395.6 CDC24 Calponin

CDC27 PF09507.5 DNA polymerase subunit Cdc27

CDC37_C PF08564.5 Cdc37 C terminal domain

CDC37_M PF08565.6 Cdc37 Hsp90 binding domain

CDC37_N PF03234.9 Cdc37 N terminal kinase binding

CDC45 PF02724.9 CDC45-like protein

CDC48_2 PF02933.12 Cell division protein 48 (CDC48), domain 2

CDC48_N PF02359.13 Cell division protein 48 (CDC48), N-terminal domain

CDC50 PF03381.10 LEM3 (ligand-effect modulator 3) family / CDC50 family

Cdc6_C PF09079.6 CDC6, C terminal

CDC73 PF05179.9 RNA pol II accessory factor, Cdc73 family

CdCA1 PF10563.4 Cadmium carbonic anhydrase repeat

Cdd1 PF11731.3 Pathogenicity locus

CDH PF02611.10 CDP-diacylglycerol pyrophosphatase

CdhC PF03598.10 CO dehydrogenase/acetyl-CoA synthase complex beta subunit

CdhD PF03599.11 CO dehydrogenase/acetyl-CoA synthase delta subunit

CDI PF02234.14 Cyclin-dependent kinase inhibitor

CDK2AP PF09806.4 Cyclin-dependent kinase 2-associated protein

CDK5_activator PF03261.10 Cyclin-dependent kinase 5 activator protein

CDKN3 PF05706.7 Cyclin-dependent kinase inhibitor 3 (CDKN3)

CDO_I PF05995.7 Cysteine dioxygenase type I

CDP-OH_P_transf PF01066.16 CDP-alcohol phosphatidyltransferase

CDP-OH_P_tran_2 PF08009.6 CDP-alcohol phosphatidyltransferase 2

CDRN PF05174.7 Cysteine-rich D. radiodurans N terminus

CDRT4 PF15213.1 CMT1A duplicated region transcript 4 protein

CDT1 PF08839.6 DNA replication factor CDT1 like

CDtoxinA PF03498.9 Cytolethal distending toxin A/C family

CDV3 PF15359.1 Carnitine deficiency-associated protein 3

CECR6_TMEM121 PF14997.1 CECR6/TMEM121 family

Cecropin PF00272.14 Cecropin family

CedA PF10729.4 Cell division activator CedA

CelD_N PF02927.9 N-terminal ig-like domain of cellulase

Cellsynth_D PF03500.8 Cellulose synthase subunit D

Cellulase PF00150.13 Cellulase (glycosyl hydrolase family 5)

Cellulase-like PF12876.2 Sugar-binding cellulase-like

Cellulose_synt PF03552.9 Cellulose synthase

CemA PF03040.9 CemA family

Cementoin PF10511.4 Trappin protein transglutaminase binding domain

CENP-B_dimeris PF09026.5 Centromere protein B dimerisation domain

CENP-B_N PF04218.8 CENP-B N-terminal DNA-binding domain

CENP-C_C PF11699.3 Mif2/CENP-C like

CENP-C_mid PF15620.1 Centromere assembly component CENP-C middle DNMT3B-binding region

CENP-F_C_Rb_bdg PF10490.4 Rb-binding domain of kinetochore protein Cenp-F/LEK1

CENP-F_leu_zip PF10473.4 Leucine-rich repeats of kinetochore protein Cenp-F/LEK1

CENP-F_N PF10481.4 Cenp-F N-terminal domain

CENP-H PF05837.7 Centromere protein H (CENP-H)

CENP-I PF07778.6 Mis6

CENP-K PF11802.3 Centromere-associated protein K

CENP-L PF13092.1 Kinetochore complex Sim4 subunit Fta1

CENP-M PF11111.3 Centromere protein M (CENP-M)

CENP-N PF05238.8 Kinetochore protein CHL4 like

CENP-O PF09496.5 Cenp-O kinetochore centromere component

CENP-P PF13096.1 CENP-A-nucleosome distal (CAD) centromere subunit, CENP-P

CENP-Q PF13094.1 CENP-Q, a CENPA-CAD centromere complex subunit

CENP-R PF06729.7 Kinetochore component, CENP-R

CENP-S PF15630.1 Kinetochore component CENP-S

CENP-T PF15511.1 Centromere kinetochore component CENP-T

CENP-U PF13097.1 CENP-A nucleosome associated complex (NAC) subunit

CENP-W PF15510.1 Centromere kinetochore component W

CENP-X PF09415.5 CENP-S associating Centromere protein X

CENP_C_N PF15622.1 Kinetochore assembly subunit CENP-C N-terminal

CEP1-DNA_bind PF09287.5 CEP-1, DNA binding

CEP170_C PF15308.1 CEP170 C-terminus

CEP19 PF14933.1 CEP19-like protein

CEP44 PF15007.1 Centrosomal spindle body, CEP44

Cep57_CLD PF14073.1 Centrosome localisation domain of Cep57

Cep57_CLD_2 PF14197.1 Centrosome localisation domain of PPC89

Cep57_MT_bd PF06657.8 Centrosome microtubule-binding domain of Cep57

CEP76-C2 PF15627.1 CEP76 C2 domain

Ceramidase PF05875.7 Ceramidase

Ceramidase_alk PF04734.8 Neutral/alkaline non-lysosomal ceramidase

Cerato-platanin PF07249.7 Cerato-platanin

CesA PF11439.3 Type III secretion system filament chaperone CesA

CesT PF05932.8 Tir chaperone protein (CesT) family

CfAFP PF05264.6 Choristoneura fumiferana antifreeze protein (CfAFP)

CFC PF09443.5 Cripto_Frl-1_Cryptic (CFC)

CFEM PF05730.6 CFEM domain

CFIA_Pcf11 PF11526.3 Subunit of cleavage factor IA Pcf11

CFTR_R PF14396.1 Cystic fibrosis TM conductance regulator (CFTR), regulator domain

CG-1 PF03859.11 CG-1 domain

Cg6151-P PF10233.4 Uncharacterized conserved protein CG6151-P

CGGC PF08821.6 CGGC domain

CGI-121 PF08617.5 Kinase binding protein CGI-121

Cgr1 PF03879.9 Cgr1 family

CgtA PF06306.6 Beta-1,4-N-acetylgalactosaminyltransferase (CgtA)

CH PF00307.26 Calponin homology (CH) domain

ChaB PF06150.7 ChaB

ChaC PF04752.7 ChaC-like protein

CHAD PF05235.9 CHAD domain

Chalcone PF02431.10 Chalcone-flavanone isomerase

Chal_sti_synt_C PF02797.10 Chalcone and stilbene synthases, C-terminal domain

Chal_sti_synt_N PF00195.14 Chalcone and stilbene synthases, N-terminal domain

Channel_Tsx PF03502.8 Nucleoside-specific channel-forming protein, Tsx

CHAP PF05257.11 CHAP domain

Chaperone_III PF07824.7 Type III secretion chaperone domain

ChAPs PF09295.5 ChAPs (Chs5p-Arf1p-binding proteins)

CHASE PF03924.8 CHASE domain

CHASE2 PF05226.6 CHASE2 domain

CHASE3 PF05227.8 CHASE3 domain

CHASE4 PF05228.8 CHASE4 domain

CHAT PF12770.2 CHAT domain

CHB_HEX PF03173.8 Putative carbohydrate binding domain

CHB_HEX_C PF03174.8 Chitobiase/beta-hexosaminidase C-terminal domain

CHB_HEX_C_1 PF13290.1 Chitobiase/beta-hexosaminidase C-terminal domain

CHCH PF06747.8 CHCH domain

CHD5 PF04420.9 CHD5-like protein

CHDCT2 PF08074.6 CHDCT2 (NUC038) domain

CHDNT PF08073.7 CHDNT (NUC034) domain

CheB_methylest PF01339.12 CheB methylesterase

CheC PF04509.7 CheC-like family

CheD PF03975.8 CheD chemotactic sensory transduction

CheF-arch PF04283.7 Chemotaxis signal transduction system protein F from archaea

CheR PF01739.13 CheR methyltransferase, SAM binding domain

CheR_N PF03705.10 CheR methyltransferase, all-alpha domain

CheW PF01584.14 CheW-like domain

CheX PF13690.1 Chemotaxis phosphatase CheX

CheY-binding PF09078.6 CheY binding

CheZ PF04344.8 Chemotaxis phosphatase, CheZ

CHGN PF05679.11 Chondroitin N-acetylgalactosaminyltransferase

Chibby PF14645.1 Chibby family

ChiC PF06483.6 Chitinase C

CHIPS PF11434.3 Chemotaxis-inhibiting protein CHIPS

Chisel PF15355.1 Stretch-responsive small skeletal muscle X protein, Chisel

ChitinaseA_N PF08329.5 Chitinase A, N-terminal domain

Chitin_bind_1 PF00187.14 Chitin recognition protein

Chitin_bind_3 PF03067.10 Chitin binding domain

Chitin_bind_4 PF00379.18 Insect cuticle protein

Chitin_synth_1 PF01644.12 Chitin synthase

Chitin_synth_1N PF08407.6 Chitin synthase N-terminal

Chitin_synth_2 PF03142.10 Chitin synthase

ChlamPMP_M PF07548.6 Chlamydia polymorphic membrane protein middle domain

Chlamy_scaf PF09675.5 Chlamydia-phage Chp2 scaffold (Chlamy_scaf)

Chlam_OMP PF01308.12 Chlamydia major outer membrane protein

Chlam_OMP3 PF03503.8 Chlamydia cysteine-rich outer membrane protein 3

Chlam_OMP6 PF03504.8 Chlamydia cysteine-rich outer membrane protein 6

Chlam_PMP PF02415.12 Chlamydia polymorphic membrane protein (Chlamydia_PMP) repeat

Chlam_vir PF05475.6 Chlamydia virulence protein PGP3-D

ChlI PF13541.1 Subunit ChlI of Mg-chelatase

Chloroa_b-bind PF00504.16 Chlorophyll A-B binding protein

Chlorophyllase PF07224.6 Chlorophyllase

Chlorophyllase2 PF12740.2 Chlorophyllase enzyme

Chloroplast_duf PF14476.1 Petal formation-expressed

Chlorosome_CsmC PF11098.3 Chlorosome envelope protein C

Chlorovi_GP_rpt PF06598.6 Chlorovirus glycoprotein repeat

Chlor_dismutase PF06778.7 Chlorite dismutase

CHMI PF02962.10 5-carboxymethyl-2-hydroxymuconate isomerase

CholecysA-Rec_N PF09193.5 Cholecystokinin A receptor, N-terminal

Choline_kinase PF01633.15 Choline/ethanolamine kinase

Choline_kin_N PF04428.9 Choline kinase N terminus

Choline_sulf_C PF12411.3 Choline sulfatase enzyme C terminal

Choline_transpo PF04515.7 Plasma-membrane choline transporter

Chol_subst-bind PF09129.6 Cholesterol oxidase, substrate-binding

Chondroitinas_B PF14592.1 Chondroitinase B

Chon_Sulph_att PF06566.6 Chondroitin sulphate attachment domain


Chordopox_A13L PF05961.6 Chordopoxvirus A13L protein

Chordopox_A15 PF05846.7 Chordopoxvirus A15 protein

Chordopox_A20R PF05941.8 Chordopoxvirus A20R protein

Chordopox_A30L PF06015.7 Chordopoxvirus A30L protein

Chordopox_A33R PF05966.7 Chordopoxvirus A33R protein

Chordopox_A35R PF05989.7 Chordopoxvirus A35R protein

Chordopox_E11 PF06138.7 Chordopoxvirus E11 protein

Chordopox_G2 PF05796.7 Chordopoxvirus protein G2

Chordopox_G3 PF06129.7 Chordopoxvirus G3 protein

Chordopox_L2 PF05803.7 Chordopoxvirus L2 protein

Chordopox_RPO7 PF05864.7 Chordopoxvirus DNA-directed RNA polymerase 7 kDa polypeptide (RPO7)

Chorein_N PF12624.2 N-terminal region of Chorein, a TM vesicle-mediated sorter

Chorion_1 PF01723.11 Chorion protein

Chorion_2 PF03964.10 Chorion family 2

Chorion_3 PF05387.6 Chorion family 3

Chorion_S16 PF05836.7 Chorion protein S16

Chorismate_bind PF00425.13 chorismate binding enzyme

Chorismate_synt PF01264.16 Chorismate synthase

Chor_lyase PF04345.8 Chorismate lyase

ChpXY PF10216.4 CO2 hydration protein (ChpXY)

CHRD PF07452.7 CHRD domain

Chromadorea_ALT PF05535.7 Chromadorea ALT protein

Chromate_transp PF02417.10 Chromate transporter

Chrome_Resist PF09828.4 Chromate resistance exported protein

Chromo PF00385.19 Chromo (CHRromatin Organisation MOdifier) domain

Chromosome_seg PF13889.1 Chromosome segregation during meiosis

Chromo_shadow PF01393.14 Chromo shadow domain

Chs3p PF12271.3 Chitin synthase III catalytic subunit

Churchill PF06573.6 Churchill protein

ChuX_HutX PF06228.8 Haem utilisation ChuX/HutX

CHU_C PF13585.1 C-terminal domain of CHU protein family

ChW PF07538.6 Clostridial hydrophobic W

CHZ PF09649.5 Histone chaperone domain CHZ

CI-B14_5a PF07347.7 NADH:ubiquinone oxidoreductase subunit B14.5a (Complex I-B14.5a)

CIA30 PF08547.7 Complex I intermediate-associated protein 30 (CIA30)

CIAPIN1 PF05093.8 Cytokine-induced anti-apoptosis inhibitor 1, Fe-S biogenesis

Cid2 PF09774.4 Caffeine-induced death protein 2

CIDE-N PF02017.10 CIDE-N domain

CIMR PF00878.13 Cation-independent mannose-6-phosphate receptor repeat

CinA PF02464.12 Competence-damaged protein

Circo_capsid PF02443.10 Circovirus capsid protein

Cir_Bir_Yir PF06022.6 Plasmodium variant antigen protein Cir/Yir/Bir

Cir_N PF10197.4 N-terminal domain of CBF1 interacting co-repressor CIR


CitF PF04223.7 Citrate lyase, alpha subunit (CitF)

CitG PF01874.11 ATP:dephospho-CoA triphosphoribosyl transferase

CitMHS PF03600.11 Citrate transporter

Citrate_ly_lig PF08218.6 Citrate lyase ligase C-terminal domain

Citrate_synt PF00285.16 Citrate synthase

Citrus_P18 PF05520.6 Citrus tristeza virus P18 protein

CitT PF12431.3 Transcriptional regulator

CitX PF03802.9 Apo-citrate lyase phosphoribosyl-dephospho-CoA transferase

CK1gamma_C PF12605.3 Casein kinase 1 gamma C terminal

CK2S PF15011.1 Casein Kinase 2 substrate

CKAP2_C PF15297.1 Cytoskeleton-associated protein 2 C-terminus

CKS PF01111.14 Cyclin-dependent kinase regulatory subunit

CK_II_beta PF01214.13 Casein kinase II regulatory subunit

CLAG PF03805.8 Cytoadherence-linked asexual protein

CLAMP PF14769.1 Flagellar C1a complex subunit C1a-32

CLASP_N PF12348.3 CLASP N terminal

Class_IIIsignal PF04021.7 Class III signal peptide

Clathrin PF00637.15 Region in Clathrin and VPS

Clathrin-link PF09268.5 Clathrin, heavy-chain linker

Clathrin_bdg PF15045.1 Clathrin-binding box of Aftiphilin, vesicle trafficking

Clathrin_H_link PF13838.1 Clathrin-H-link

Clathrin_lg_ch PF01086.12 Clathrin light chain

Clathrin_propel PF01394.15 Clathrin propeller repeat

Clat_adaptor_s PF01217.15 Clathrin adaptor complex small chain

Claudin_2 PF13903.1 PMP-22/EMP/MP20/Claudin tight junction

Claudin_3 PF06653.6 Tight junction protein, Claudin-like

Clavanin PF05452.6 Clavanin

Clc-like PF07062.7 Clc-like

CLCA_N PF08434.6 Calcium-activated chloride channel

Cleaved_Adhesin PF07675.6 Cleaved Adhesin Domain

Clenterotox PF03505.9 Clostridium enterotoxin

CLIP PF12032.3 Regulatory CLIP domain of proteinases

CLN3 PF02487.12 CLN3 protein

CLN5 PF15014.1 Ceroid-lipofuscinosis neuronal protein 5

CLN6 PF15156.1 Ceroid-lipofuscinosis neuronal protein 6

Cloacin PF03515.9 Colicin-like bacteriocin tRNase domain

Cloacin_immun PF03513.9 Cloacin immunity protein

Closter_coat PF01785.12 Closterovirus coat protein

Clostridium_P47 PF06597.6 Clostridium P-47 protein

Clp1 PF06807.9 Pre-mRNA cleavage complex II protein Clp1

ClpB_D2-small PF10431.4 C-terminal, D2-small domain, of ClpB protein

ClpS PF02617.12 ATP-dependent Clp protease adaptor protein ClpS

CLPTM1 PF05602.7 Cleft lip and palate transmembrane protein 1 (CLPTM1)

Clp_N PF02861.15 Clp amino terminal domain

CLP_protease PF00574.18 Clp protease

Clr2 PF10383.4 Transcription-silencing protein Clr2

Clr5 PF14420.1 Clr5 domain

CLTH PF10607.4 CTLH/CRA C-terminal to LisH motif domain

CLU PF13236.1 Clustered mitochondria

Cluap1 PF10234.4 Clusterin-associated protein-1

Clusterin PF01093.12 Clusterin

CLU_N PF15044.1 Mitochondrial function, CLU-N-term

CM1 PF03026.10 Influenza C virus M1 protein

CM2 PF03021.9 Influenza C virus M2 protein

CMAS PF02353.15 Mycolic acid cyclopropane synthetase

Cmc1 PF08583.5 Cytochrome c oxidase biogenesis protein Cmc1 like

CmcH_NodU PF02543.10 Carbamoyltransferase

CmcI PF04989.7 Cephalosporin hydroxylase

CMD PF02627.15 Carboxymuconolactone decarboxylase family

CMS1 PF14617.1 U3-containing 90S pre-ribosomal complex subunit

CMV_1a PF12467.3 Cucumber mosaic virus 1a protein family

CMV_1a_C PF12503.3 Cucumber mosaic virus 1a protein C terminal


Cmyb_C PF09316.5 C-myb, C-terminal

CM_1 PF07736.6 Chorismate mutase type I

CM_2 PF01817.16 Chorismate mutase type II

Cm_res_leader PF08077.6 Chloramphenicol resistance gene leader peptide

Cna_B PF05738.8 Cna protein B-type domain

Cnd1 PF12717.2 non-SMC mitotic condensation complex subunit 1

Cnd1_N PF12922.2 non-SMC mitotic condensation complex subunit 1, N-term

Cnd2 PF05786.9 Condensin complex subunit 2

Cnd3 PF12719.2 Nuclear condensing complex subunits, C-term domain

CNF1 PF05785.7 Rho-activating domain of cytotoxic necrotizing factor

CNH PF00780.17 CNH domain

Cnl2_NKP2 PF09447.5 Cnl2/NKP2 family protein

CNP1 PF08750.6 CNP1-like family

CNPase PF05881.7 2',3'-cyclic nucleotide 3'-phosphodiesterase (CNP or CNPase)

CNRIP1 PF15043.1 CB1 cannabinoid receptor-interacting protein 1

CNTF PF01110.12 Ciliary neurotrophic factor

CN_hydrolase PF00795.17 Carbon-nitrogen hydrolase

Coa1 PF08695.5 Cytochrome oxidase complex assembly protein 1

CoaE PF01121.15 Dephospho-CoA kinase

Coagulase PF08764.5 Staphylococcus aureus coagulase

Coagulin PF02035.10 Coagulin

Coatamer_beta_C PF07718.7 Coatomer beta C-terminal region

CoatB PF10389.4 Bacteriophage coat protein B

Coatomer_b_Cpla PF14806.1 Coatomer beta subunit appendage platform

Coatomer_E PF04733.9 Coatomer epsilon subunit

Coatomer_WDAD PF04053.9 Coatomer WD associated region

Coat_F PF07875.7 Coat F domain

Coat_X PF07552.6 Spore Coat Protein X and V domain

CoA_binding PF02629.14 CoA binding domain

CoA_binding_2 PF13380.1 CoA binding domain

CoA_binding_3 PF13727.1 CoA-binding domain

CoA_trans PF01144.18 Coenzyme A transferase

CoA_transf_3 PF02515.12 CoA-transferase family III

Cobalamin_bind PF01122.14 Eukaryotic cobalamin-binding protein

CobA_CobO_BtuR PF02572.10 ATP:corrinoid adenosyltransferase BtuR/CobO/CobP

CobD_Cbib PF03186.8 CobD/Cbib protein

Cobl PF09469.5 Cordon-bleu ubiquitin-like domain

CobN-Mg_chel PF02514.11 CobN/Magnesium Chelatase

COBRA PF04833.10 COBRA-like protein

COBRA1 PF06209.8 Cofactor of BRCA1 (COBRA1)

CobS PF02654.10 Cobalamin-5-phosphate synthase

CobS_N PF12556.3 Cobaltochelatase CobS subunit N terminal

CobT PF06213.7 Cobalamin biosynthesis protein CobT

CobT_C PF11775.3 Cobalamin biosynthesis protein CobT VWA domain

CobU PF02283.11 Cobinamide kinase / cobinamide phosphate guanyltransferase

CobW_C PF07683.9 Cobalamin synthesis protein cobW C-terminal domain

Cob_adeno_trans PF01923.13 Cobalamin adenosyltransferase

Codanin-1_C PF15296.1 Codanin-1 C-terminus

CodY PF06018.9 CodY GAF-like domain

COesterase PF00135.23 Carboxylesterase family

CofC PF01983.11 Guanylyl transferase CofC like

Cofilin_ADF PF00241.15 Cofilin/tropomyosin-type actin-binding protein

COG2 PF06148.6 COG (conserved oligomeric Golgi) complex component, COG2

COG4 PF08318.7 COG4 transport protein

COG5 PF10392.4 Golgi transport complex subunit 5

COG6 PF06419.6 Conserved oligomeric complex COG6

COG7 PF10191.4 Golgi complex component 7 (COG7)

Cohesin PF00963.13 Cohesin domain

Cohesin_HEAT PF12765.2 HEAT repeat associated with sister chromatid cohesion

Cohesin_load PF10345.4 Cohesin loading factor

CoiA PF06054.6 Competence protein CoiA-like family

Coiled PF05710.7 Coiled coil

Coiled-coil_56 PF09813.4 Coiled-coil domain-containing protein 56

Coleoptericin PF06286.6 Coleoptericin

COLFI PF01410.13 Fibrillar collagen C-terminal domain

Colicin PF01024.14 Colicin pore forming domain

Colicin-DNase PF12639.2 DNase/tRNase domain of colicin-like bacteriocin

Colicin_C PF12106.3 Colicin C terminal ribonuclease domain

Colicin_D PF11429.3 Colicin D

Colicin_Ia PF11504.3 Colicin Ia

Colicin_im PF03857.8 Colicin immunity protein

Colicin_immun PF09204.5 Bacterial self-protective colicin-like immunity

Colicin_M PF14859.1 Colicin M

Colicin_Pyocin PF01320.13 Colicin immunity protein / pyocin immunity protein

Colicin_V PF02674.11 Colicin V production protein

Colipase PF01114.13 Colipase, N-terminal domain

Colipase-like PF15083.1 Colipase-like

Colipase_C PF02740.9 Colipase, C-terminal domain

Collagen PF01391.13 Collagen triple helix repeat (20 copies)

Collagen_bind PF05737.7 Collagen binding domain

Collagen_bind_2 PF12904.2 Putative collagen-binding domain of a collagenase

Collar PF07484.7 Phage Tail Collar Domain

Col_cuticle_N PF01484.12 Nematode cuticle collagen N-terminal domain

ComA PF02679.10 (2R)-phospho-3-sulfolactate synthase (ComA)

ComC PF03047.9 COMC family

ComFB PF10719.4 Late competence development protein ComFB

ComGG PF14173.1 ComG operon protein 7

ComJ PF11033.3 Competence protein J (ComJ)

ComK PF06338.6 ComK protein

Como_LCP PF02247.11 Large coat protein

Como_SCP PF02248.11 Small coat protein

COMP PF11598.3 Cartilage oligomeric matrix protein

COMPASS-Shg1 PF05205.7 COMPASS (Complex proteins associated with Set1p) component shg1

Competence PF03772.11 Competence protein

CompInhib_SCIN PF11546.3 Staphylococcal complement inhibitor SCIN

Complex1_30kDa PF00329.14 Respiratory-chain NADH dehydrogenase, 30 Kd subunit

Complex1_49kDa PF00346.14 Respiratory-chain NADH dehydrogenase, 49 Kd subunit

Complex1_51K PF01512.12 Respiratory-chain NADH dehydrogenase 51 Kd subunit

Complex1_LYR PF05347.10 Complex 1 protein (LYR family)

Complex1_LYR_1 PF13232.1 Complex1_LYR-like

Complex1_LYR_2 PF13233.1 Complex1_LYR-like

ComX PF05952.7 Bacillus competence pheromone ComX

ComZ PF10815.3 ComZ

Con-6 PF10346.4 Conidiation protein 6

Condensation PF00668.15 Condensation domain

Condensin2nSMC PF12422.3 Condensin II non structural maintenance of chromosomes subunit

Connexin PF00029.14 Connexin

Connexin43 PF03508.8 Gap junction alpha-1 protein (Cx43)

Connexin50 PF03509.9 Gap junction alpha-8 protein (Cx50)

Connexin_CCC PF10582.4 Gap junction channel protein cysteine-rich domain

Conotoxin PF02950.12 Conotoxin

Consortin_C PF15281.1 Consortin C-terminus

Cons_hypoth698 PF03601.9 Conserved hypothetical protein 698

Cons_hypoth95 PF03602.10 Conserved hypothetical protein 95

COOH-NH2_lig PF14395.1 Phage phiEco32-like COOH.NH2 ligase-type 2

COP-gamma_platf PF08752.5 Coatomer gamma subunit appendage platform subdomain

COP23 PF14218.1 Circadian oscillating protein COP23

CopB PF05275.6 Copper resistance protein B precursor (CopB)

CopC PF04234.7 CopC domain

CopD PF05425.8 Copper resistance protein D

COPIIcoated_ERV PF07970.7 Endoplasmic reticulum vesicle transporter

Copine PF07002.11 Copine

COPI_assoc PF08507.5 COPI associated protein

COPI_C PF06957.6 Coatomer (COPI) alpha subunit C-terminus

CopK PF11525.3 Copper resistance protein K

Copper-bind PF00127.15 Copper binding proteins, plastocyanin/azurin family

Copper-fist PF00649.13 Copper fist DNA binding domain

COPR5 PF15340.1 Cooperator of PRMT5 family

Coprogen_oxidas PF01218.13 Coproporphyrinogen III oxidase

Coq4 PF05019.8 Coenzyme Q (ubiquinone) biosynthesis protein Coq4

COQ7 PF03232.8 Ubiquinone biosynthesis protein COQ7

COQ9 PF08511.6 COQ9

Cor1 PF04803.7 Cor1/Xlr/Xmr conserved region

CorA PF01544.13 CorA-like Mg2+ transporter protein

CorC_HlyC PF03471.12 Transporter associated domain

Cornichon PF03311.9 Cornichon protein

Cornifin PF02389.10 Cornifin (SPRR) family

Coronavirus_5 PF05528.6 Coronavirus gene 5 protein

Corona_3 PF04694.7 Coronavirus ORF3 protein

Corona_5a PF06336.6 Coronavirus 5a protein

Corona_6B_7B PF03262.8 Coronavirus 6B/7B protein

Corona_7 PF02398.11 Coronavirus protein 7

Corona_I PF03187.9 Corona nucleocapsid I protein

Corona_M PF01635.13 Coronavirus M matrix/glycoprotein

Corona_NS1 PF06145.6 Coronavirus nonstructural protein NS1

Corona_NS2 PF04753.7 Coronavirus non-structural protein NS2

Corona_NS2A PF05213.7 Coronavirus NS2A protein

Corona_NS3b PF03053.9 ORF3b coronavirus protein

Corona_NS4 PF03905.8 Coronavirus non-structural protein NS4

Corona_NS8 PF12093.3 Coronavirus NS8 protein

Corona_nucleoca PF00937.13 Coronavirus nucleocapsid protein

Corona_RPol_N PF06478.8 Coronavirus RPol N-terminus

Corona_S1 PF01600.11 Coronavirus S1 glycoprotein

Corona_S2 PF01601.11 Coronavirus S2 glycoprotein

CortBP2 PF09727.4 Cortactin-binding protein-2

Cortex-I_coil PF09304.5 Cortexillin I, coiled coil

Cortexin PF11057.3 Cortexin of kidney

Costars PF14705.1 Costars

CotE PF10628.4 Outer spore coat protein E (CotE)

CotH PF08757.6 CotH protein

CotJA PF11007.3 Spore coat associated protein JA (CotJA)

CotJB PF12652.2 CotJB protein

Couple_hipA PF13657.1 HipA N-terminal domain

COX1 PF00115.15 Cytochrome C and Quinol oxidase polypeptide I

COX14 PF14880.1 Cytochrome oxidase c assembly

COX15-CtaA PF02628.10 Cytochrome oxidase assembly protein

COX16 PF14138.1 Cytochrome c oxidase assembly protein COX16

COX17 PF05051.8 Cytochrome C oxidase copper chaperone (COX17)

COX2 PF00116.15 Cytochrome C oxidase subunit II, periplasmic domain

COX2-transmemb PF09125.5 Cytochrome C oxidase subunit II, transmembrane

COX2_TM PF02790.10 Cytochrome C oxidase subunit II, transmembrane domain

COX3 PF00510.13 Cytochrome c oxidase subunit III

COX4 PF02936.9 Cytochrome c oxidase subunit IV

COX4_pro PF03626.9 Prokaryotic Cytochrome C oxidase subunit IV

COX4_pro_2 PF07835.7 Bacterial aa3 type cytochrome c oxidase subunit IV

COX5A PF02284.11 Cytochrome c oxidase subunit Va

COX5B PF01215.14 Cytochrome c oxidase subunit Vb

COX6A PF02046.10 Cytochrome c oxidase subunit VIa

COX6B PF02297.12 Cytochrome oxidase c subunit VIb

COX6C PF02937.10 Cytochrome c oxidase subunit VIc

COX7a PF02238.10 Cytochrome c oxidase subunit VIIa

COX7B PF05392.6 Cytochrome C oxidase chain VIIB

COX7C PF02935.11 Cytochrome c oxidase subunit VIIc

COX8 PF02285.10 Cytochrome oxidase c subunit VIII

COXG PF06240.8 Carbon monoxide dehydrogenase subunit G (CoxG)

CoxIIa PF08113.6 Cytochrome c oxidase subunit IIa family

COX_ARM PF06481.9 COX Aromatic Rich Motif

Co_AT_N PF12557.3 Cob(I)alamin adenosyltransferase N terminal

CO_deh_flav_C PF03450.12 CO dehydrogenase flavoprotein C-terminal domain

CO_dh PF02552.11 CO dehydrogenase beta subunit/acetyl-CoA synthase epsilon subunit

CP12 PF02672.10 CP12 domain

CP2 PF04516.10 CP2 transcription factor

CpcD PF01383.16 CpcD/allophycocyanin linker domain

CPDase PF07823.6 Cyclic phosphodiesterase-like protein

CpeS PF09367.5 CpeS-like protein

CpeT PF06206.6 CpeT/CpcT family (DUF1001)

CPG4 PF15481.1 Chondroitin proteoglycan 4

CPL PF08144.6 CPL (NUC119) domain

Cpl-7 PF08230.6 Cpl-7 lysozyme C-terminal domain

Cpn10 PF00166.16 Chaperonin 10 Kd subunit

Cpn60_TCP1 PF00118.19 TCP-1/cpn60 chaperonin family

CppA_C PF14507.1 CppA C-terminal

CppA_N PF14506.1 CppA N-terminal

CPSase_L_chain PF00289.17 Carbamoyl-phosphate synthase L chain, N-terminal domain

CPSase_L_D2 PF02786.12 Carbamoyl-phosphate synthase L chain, ATP binding domain

CPSase_L_D3 PF02787.14 Carbamoyl-phosphate synthetase large chain, oligomerisation domain

CPSase_sm_chain PF00988.17 Carbamoyl-phosphate synthase small chain, CPSase domain

CPSF100_C PF13299.1 Cleavage and polyadenylation factor 2 C-terminal

CPSF73-100_C PF11718.3 Pre-mRNA 3'-end-processing endonuclease polyadenylation factor C-term

CPSF_A PF03178.10 CPSF A subunit region

CPT PF07931.7 Chloramphenicol phosphotransferase-like protein

CPW_WPC PF09717.5 Plasmodium falciparum domain of unknown function (CPW_WPC)

CpXC PF14353.1 CpXC protein

CP_ATPgrasp_1 PF04174.8 A circularly permuted ATPgrasp

CP_ATPgrasp_2 PF14403.1 Circularly permuted ATP-grasp type 2

CR6_interact PF10147.4 Growth arrest and DNA-damage-inducible proteins-interacting protein 1

CRA PF06589.6 Circumsporozoite-related antigen (CRA)

CRAL_TRIO PF00650.15 CRAL/TRIO domain

CRAL_TRIO_2 PF13716.1 Divergent CRAL/TRIO domain

CRAL_TRIO_N PF03765.10 CRAL/TRIO, N-terminal domain

CRAM_rpt PF07016.6 Cysteine-rich acidic integral membrane protein precursor

CRA_rpt PF07046.6 Cytoplasmic repetitive antigen (CRA) like repeat

CRCB PF02537.10 CrcB-like protein

CRC_subunit PF08624.5 Chromatin remodelling complex Rsc7/Swp82 subunit

CreA PF05981.7 CreA protein

Creatinase_N PF01321.13 Creatinase/Prolidase N-terminal domain

Creatininase PF02633.9 Creatinine amidohydrolase

Creb_binding PF09030.5 Creb binding

CreD PF06123.7 Inner membrane protein CreD

Cren7 PF11520.3 Chromatin protein Cren7

CReP_N PF10472.4 eIF2-alpha phosphatase phosphorylation constitutive repressor

CRF PF00473.12 Corticotropin-releasing factor family

CRF-BP PF05428.6 Corticotropin-releasing factor binding protein (CRF-BP)

CRF1 PF10380.4 Transcription factor CRF1

CRIC_ras_sig PF10534.4 Connector enhancer of kinase suppressor of ras

Crinivirus_P26 PF07416.6 Crinivirus P26 protein

Cript PF10235.4 Microtubule-associated protein CRIPT

Crisp PF08562.5 Crisp

CRISPR_assoc PF08798.6 CRISPR associated protein

CRISPR_Cas2 PF09827.4 CRISPR associated protein Cas2

CRISPR_Cse1 PF09481.5 CRISPR-associated protein Cse1 (CRISPR_cse1)

CRISPR_Cse2 PF09485.5 CRISPR-associated protein Cse2 (CRISPR_cse2)

Crl PF07417.7 Transcriptional regulator Crl

CRM1_C PF08767.6 CRM1 C terminal

Cro PF09048.5 Cro

Crp PF00325.15 Bacterial regulatory proteins, crp family

CRPA PF05745.6 Chlamydia 15 kDa cysteine-rich outer membrane protein (CRPA)

CRPV_capsid PF08762.5 CRPV capsid protein like

CRS1_YhbY PF01985.16 CRS1 / YhbY (CRM) domain

CRT-like PF08627.5 CRT-like

CRT10 PF08728.5 CRT10

CrtC PF07143.6 Hydroxyneurosporene synthase (CrtC)

Crust_neurohorm PF01147.12 Crustacean CHH/MIH/GIH neurohormone family

Crust_neuro_H PF03858.8 Crustacean neurohormone H

CryBP1 PF07029.6 CryBP1 protein

Cryptochrome_C PF12546.3 Blue/Ultraviolet sensing protein C terminal

Crystall PF00030.14 Beta/Gamma crystallin

Crystallin PF00525.13 Alpha crystallin A chain, N terminal

Crystall_2 PF09076.5 Beta/Gamma crystallin

Crystall_3 PF08964.5 Beta/Gamma crystallin

CS PF04969.11 CS domain

CsbD PF05532.7 CsbD-like

CSD PF00313.17 'Cold-shock' DNA-binding domain

Cse1 PF08506.5 Cse1

CSF-1 PF05337.6 Macrophage colony stimulating factor-1 (CSF-1)

CsgE PF10627.4 Curli assembly protein CsgE

CsgF PF10614.4 Type VIII secretion system (T8SS), CsgF protein

CsgG PF03783.9 Curli production assembly/transport component CsgG

CsiD PF08943.5 CsiD

Csm1 PF12539.3 Chromosome segregation protein Csm1/Pcs1

CsoS2_M PF12288.3 Carboxysome shell peptide mid-region

CsoSCA PF08936.5 Carboxysome Shell Carbonic Anhydrase

CsrA PF02599.11 Global regulator protein family

CSS-motif PF12792.2 CSS motif domain associated with EAL

CST-I PF06002.7 Alpha-2,3-sialyltransferase (CST-I)

CstA PF02554.9 Carbon starvation protein CstA

CSTF2_hinge PF14327.1 Hinge domain of cleavage stimulation factor subunit 2

CSTF_C PF14304.1 Transcription termination and cleavage factor C-terminal

CT47 PF15623.1 Cancer/testis gene family 47

CtaG_Cox11 PF04442.9 Cytochrome c oxidase assembly protein CtaG/Cox11

CTC1 PF15489.1 CST, telomere maintenance, complex subunit CTC1

CTC1_2 PF15491.1 CST, telomere maintenance, complex subunit CTC1

CTD PF12815.2 Spt5 C-terminal nonapeptide repeat binding Spt4

CTDII PF01556.13 DnaJ C terminal domain

CTD_bind PF04818.8 RNA polymerase II-binding domain.

Ctf8 PF09696.5 Ctf8

CTF_NFI PF00859.13 CTF/NF-I family transcription modulation region

CTI PF06934.6 Fatty acid cis/trans isomerase (CTI)

CtIP_N PF10482.4 Tumour-suppressor protein CtIP N-terminal domain

CTK3 PF12243.3 CTD kinase subunit gamma CTK3

CTK3_C PF12350.3 CTD kinase subunit gamma CTK3 C-terminus

CtnDOT_TraJ PF07863.6 Homologues of TraJ from Bacteroides conjugative transposon

CTNNB1_binding PF08347.6 N-terminal CTNNB1 binding

CTNNBL PF08216.6 Catenin-beta-like, Arm-motif containing nuclear

CTP-dep_RFKase PF01982.11 Domain of unknown function DUF120

CTP_synth_N PF06418.9 CTP synthase N-terminus

CTP_transf_1 PF01148.15 Cytidylyltransferase family

CTP_transf_2 PF01467.21 Cytidylyltransferase

CTP_transf_3 PF02348.14 Cytidylyltransferase

Ctr PF04145.10 Ctr copper transporter family

CtsR PF05848.6 Firmicute transcriptional repressor of class III stress genes (CtsR)

CTV_P13 PF06922.6 Citrus tristeza virus P13 protein

CTV_P23 PF04808.7 Citrus tristeza virus (CTV) P23 protein

CTV_P33 PF07184.6 Citrus tristeza virus P33 protein

CTV_P6 PF06706.6 Citrus tristeza virus 6-kDa protein

CTX_RstB PF07459.6 CTX phage RstB protein

Cu-binding_MopE PF11617.3 Protein metal binding site

Cu-oxidase PF00394.17 Multicopper oxidase

Cu-oxidase_2 PF07731.9 Multicopper oxidase

Cu-oxidase_3 PF07732.10 Multicopper oxidase

Cu-oxidase_4 PF02578.10 Multi-copper polyphenol oxidoreductase laccase

Cu2_monooxygen PF01082.15 Copper type II ascorbate-dependent monooxygenase, N-terminal domain

Cu2_monoox_C PF03712.10 Copper type II ascorbate-dependent monooxygenase, C-terminal domain

CUB PF00431.15 CUB domain

CUB_2 PF02408.15 CUB-like domain

Cucumo_2B PF03263.8 Cucumovirus protein 2B

Cucumo_coat PF00760.13 Cucumovirus coat protein

CUE PF02845.11 CUE domain

Cul7 PF11515.3 Mouse development and cellular proliferation protein Cullin-7

Cullin PF00888.17 Cullin family

Cullin_binding PF03556.10 Cullin binding

Cullin_Nedd8 PF10557.4 Cullin protein neddylation domain

Cupin_1 PF00190.17 Cupin

Cupin_2 PF07883.6 Cupin domain

Cupin_3 PF05899.7 Protein of unknown function (DUF861)

Cupin_4 PF08007.7 Cupin superfamily protein

Cupin_5 PF06172.6 Cupin superfamily (DUF985)

Cupin_6 PF12852.2 Cupin

Cupin_7 PF12973.2 ChrR Cupin-like domain

Cupin_8 PF13621.1 Cupin-like domain

Cupredoxin_1 PF13473.1 Cupredoxin-like domain

Curlin_rpt PF07012.7 Curlin associated repeat

Curto_V2 PF07325.6 Curtovirus V2 protein

Curto_V3 PF07436.6 Curtovirus V3 protein

CusF_Ec PF11604.3 Copper binding periplasmic protein CusF

CUT PF02376.10 CUT domain

Cut12 PF11500.3 Spindle pole body formation-associated protein

Cut8_C PF08559.5 Cut8 six-helix bundle

Cut8_M PF14483.1 Cut8 dimerisation domain

Cut8_N PF14482.1 Cut8 proteasome-binding domain

CutA1 PF03091.10 CutA1 divalent ion tolerance protein

CutC PF03932.9 CutC family

Cuticle_1 PF08140.6 Crustacean cuticle protein repeat

Cuticle_2 PF08184.6 Cuticle protein 7 isoform family

Cuticle_3 PF11018.3 Pupal cuticle protein C1

Cutinase PF01083.17 Cutinase

Cu_amine_oxid PF01179.15 Copper amine oxidase, enzyme domain

Cu_amine_oxidN1 PF07833.6 Copper amine oxidase N-terminal domain

Cu_amine_oxidN2 PF02727.11 Copper amine oxidase, N2 domain

Cu_amine_oxidN3 PF02728.11 Copper amine oxidase, N3 domain

Cu_bind_like PF02298.12 Plastocyanin-like domain

CVNH PF08881.5 CVNH domain

CWC25 PF12542.3 Pre-mRNA splicing factor

CwfJ_C_1 PF04677.10 Protein similar to CwfJ C-terminus 1

CwfJ_C_2 PF04676.9 Protein similar to CwfJ C-terminus 2

Cwf_Cwc_15 PF04889.7 Cwf15/Cwc15 cell cycle control protein

CW_binding_1 PF01473.15 Putative cell wall binding repeat

CW_binding_2 PF04122.7 Putative cell wall binding repeat 2

CX PF01705.14 CX module

CXCL17 PF15211.1 VEGF co-regulated chemokine 1

CXCR4_N PF12109.3 CXCR4 Chemokine receptor N terminal

CXCXC PF03128.9 CXCXC repeat

CxxCxxCC PF03692.10 Putative zinc- or iron-chelating domain

Cyanate_lyase PF02560.9 Cyanate lyase C-terminal domain

CybS PF05328.7 CybS

Cyc-maltodext_C PF10438.4 Cyclo-malto-dextrinase C-terminal domain

Cyc-maltodext_N PF09087.6 Cyclomaltodextrinase, N-terminal

Cyclase PF04199.8 Putative cyclase

Cyclase_polyket PF04673.7 Polyketide synthesis cyclase

Cyclin PF08613.6 Cyclin

Cyclin_C PF02984.14 Cyclin, C-terminal domain

Cyclin_N PF00134.18 Cyclin, N-terminal domain

Cyclophil_like PF04126.8 Cyclophilin-like

Cyclotide PF03784.8 Cyclotide family

Cyd_oper_YbgE PF09600.5 Cyd operon protein YbgE (Cyd_oper_YbgE)

Cylicin_N PF15241.1 Cylicin N-terminus

Cypo_polyhedrin PF05865.6 Cypovirus polyhedrin protein

CysG_dimeriser PF10414.4 Sirohaem synthase dimerisation region

Cystatin PF00031.16 Cystatin domain

CYSTM PF12734.2 Cysteine-rich TM module stress tolerance

Cys_knot PF00007.17 Cystine-knot domain

Cys_Met_Meta_PP PF01053.15 Cys/Met metabolism PLP-dependent enzyme

Cys_rich_CPCC PF14206.1 Cysteine-rich CPCC

Cys_rich_CPXG PF14255.1 Cysteine-rich CPXCG

Cys_rich_CWC PF14375.1 Cysteine-rich CWC

Cys_rich_FGFR PF00839.12 Cysteine rich repeat

Cys_rich_KTR PF14205.1 Cysteine-rich KTR

Cys_rich_VLP PF14194.1 Cysteine-rich VLP

Cyt-b5 PF00173.23 Cytochrome b5-like Heme/Steroid binding domain

CytadhesinP1 PF12378.3 Trypsin-sensitive surface-exposed protein

Cytadhesin_P30 PF07271.6 Cytadhesin P30/P32

CytB6-F_Fe-S PF08802.5 Cytochrome B6-F complex Fe-S subunit

CYTH PF01928.16 CYTH domain

Cytidylate_kin PF02224.13 Cytidylate kinase

Cytidylate_kin2 PF13189.1 Cytidylate kinase-like family

CYTL1 PF15153.1 Cytokine-like protein 1

CytochromB561_N PF09786.4 Cytochrome B561, N terminal

Cytochrome-c551 PF10643.4 Photosystem P840 reaction-centre cytochrome c-551

Cytochrome_C554 PF13435.1 Cytochrome c554 and c-prime

Cytochrome_C7 PF14522.1 Cytochrome c7

Cytochrome_cB PF11783.3 Cytochrome c bacterial

Cytochrome_CBB3 PF13442.1 Cytochrome C oxidase, cbb3-type, subunit III

Cytochrom_B558a PF05038.8 Cytochrome Cytochrome b558 alpha-subunit

Cytochrom_B559 PF00283.14 Cytochrome b559, alpha (gene psbE) and beta (gene psbF)subunits

Cytochrom_B559a PF00284.15 Lumenal portion of Cytochrome b559, alpha (gene psbE) subunit

Cytochrom_B561 PF03188.11 Eukaryotic cytochrome b561

Cytochrom_B562 PF07361.6 Cytochrome b562

Cytochrom_B_C PF00032.12 Cytochrome b(C-terminal)/b6/petD

Cytochrom_B_N PF00033.14 Cytochrome b(N-terminal)/b6/petB

Cytochrom_B_N_2 PF13631.1 Cytochrome b(N-terminal)/b6/petB

Cytochrom_C PF00034.16 Cytochrome c

Cytochrom_C1 PF02167.10 Cytochrome C1 family

Cytochrom_c3_2 PF14537.1 Cytochrome c3

Cytochrom_C550 PF14495.1 Cytochrome c-550 domain

Cytochrom_C552 PF02335.10 Cytochrome c552

Cytochrom_CIII PF02085.11 Class III cytochrome C family

Cytochrom_C_2 PF01322.15 Cytochrome C'

Cytochrom_C_asm PF01578.15 Cytochrome C assembly protein

Cytochrom_D1 PF02239.11 Cytochrome D1 heme domain

Cytochrom_NNT PF03264.9 NapC/NirT cytochrome c family, N-terminal region

CytoC_RC PF02276.13 Photosynthetic reaction centre cytochrome C subunit

Cytokin-bind PF09265.5 Cytokinin dehydrogenase 1, FAD and cytokinin binding

Cytokin_check_N PF10407.4 Cdc14 phosphatase binding protein N-terminus

Cytomega_gL PF01801.11 Cytomegalovirus glycoprotein L

Cytomega_TRL10 PF06084.6 Cytomegalovirus TRL10 protein

Cytomega_UL20A PF05984.7 Cytomegalovirus UL20A protein

Cytomega_UL84 PF06284.6 Cytomegalovirus UL84 protein

Cytomega_US3 PF05963.6 Cytomegalovirus US3 protein

Cytotoxic PF09000.5 Cytotoxic

Cyto_heme_lyase PF01265.12 Cytochrome c/c1 heme lyase

Cyto_ox_2 PF02322.10 Cytochrome oxidase subunit II

Cyt_c_ox_IV PF12270.3 Cytochrome c oxidase subunit IV

CZB PF13682.1 Chemoreceptor zinc-binding domain

C_GCAxxG_C_C PF09719.5 Putative redox-active protein (C_GCAxxG_C_C)

C_tripleX PF02363.14 Cysteine rich repeat

c-SKI_SMAD_bind PF08782.5 c-SKI Smad4 binding domain

cEGF PF12662.2 Complement Clr-like EGF-like

chaperone_DMP PF10448.4 20S proteasome chaperone

cIII PF08134.6 cIII protein family

cNMP_binding PF00027.24 Cyclic nucleotide-binding domain

cobW PF02492.14 CobW/HypB/UreG, nucleotide-binding domain

cwf18 PF08315.7 cwf18 pre-mRNA splicing factor

cwf21 PF08312.7 cwf21 domain