+C Peptidases and inhibitors KO
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Peptidases and Inhibitors - Escherichia coli O139:H28 E24377A (ETEC)
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AAspartic peptidases
B Family A1: pepsin family
B Family A2: retropepsin family
B Family A5: thermopsin family
B Family A8: signal peptidase II family
C EcE24377A_0027 lspA; signal peptidase II K03101 lspA; signal peptidase II [EC:3.4.23.36]
B Family A22: presenilin family
B Family A24: type IV prepilin peptidase family
C EcE24377A_3430 type IV prepilin peptidase family protein K02654 pilD; leader peptidase (prepilin peptidase) / N-methyltransferase [EC:3.4.23.43 2.1.1.-]
C EcE24377A_3806 peptidase, A24 (type IV prepilin peptidase) family K02506 hofD; leader peptidase HopD [EC:3.4.23.43]
B Family A25: gpr protease family
B Family A26: omptin family
B Family A28
B Family A31: HybD endopeptidase family
C EcE24377A_1090 hyaD; hydrogenase 1 maturation peptidase HyaD K03605 hyaD; hydrogenase maturation protease [EC:3.4.23.-]
C EcE24377A_3462 hybD; hydrogenase 2 maturation peptidase K03605 hyaD; hydrogenase maturation protease [EC:3.4.23.-]
C EcE24377A_3005 hycI; hydrogenase maturation peptidase HycI K08315 hycI; hydrogenase 3 maturation protease [EC:3.4.23.51]
B Family A36
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ACysteine peptidases
B Family C1: papain family
B Family C2: calpain family
B Family C3: picornain family
B Family C4: NIa protease family
B Family C5
B Family C9
B Family C10: streptopain family
B Family C11: clostripain family
B Family C12: ubiquitin C-terminal hydrolase family
B Family C13: legumain family
B Family C14: caspase family
B Family C15: pyroglutamyl peptidase I family
B Family C16
B Family C19: ubiquitin-specific protease family
B Family C25: gingipain family
B Family C26: gamma-glutamyl hydrolase family
C EcE24377A_2791 guaA; GMP synthase (glutamine-hydrolyzing) K01951 guaA; GMP synthase (glutamine-hydrolysing) [EC:6.3.5.2]
C EcE24377A_1508 puuD; gamma-glutamyl-gamma-aminobutyrate hydrolase K09473 puuD; gamma-glutamyl-gamma-aminobutyrate hydrolase [EC:3.5.1.94]
B Family C27
B Family C30
B Family C37
B Family C39
B Family C40
C EcE24377A_2473 NlpC/P60 family protein K13694 mepS; murein DD-endopeptidase / murein LD-carboxypeptidase [EC:3.4.-.- 3.4.17.13]
C EcE24377A_1868 NlpC/P60 family protein K19303 mepH; murein DD-endopeptidase [EC:3.4.-.-]
C EcE24377A_1927 lipoprotein, NlpC/P60 family K13695 nlpC; probable lipoprotein NlpC
B Family C44
C EcE24377A_2606 purF; amidophosphoribosyltransferase K00764 purF; amidophosphoribosyltransferase [EC:2.4.2.14]
C EcE24377A_3700 gltB; glutamate synthase (NADPH), large subunit K00265 gltB; glutamate synthase (NADPH) large chain [EC:1.4.1.13]
C EcE24377A_4244 glmS; glutamine-fructose-6-phosphate transaminase (isomerizing) K00820 glmS; glutamine---fructose-6-phosphate transaminase (isomerizing) [EC:2.6.1.16]
C EcE24377A_0699 asnB; asparagine synthase (glutamine-hydrolyzing) K01953 asnB; asparagine synthase (glutamine-hydrolysing) [EC:6.3.5.4]
B Family C45
B Family C46: hedgehog family
B Family C47: staphopain family
B Family C48: Ulp1 endopeptidase family
B Family C50: separase family
B Family C54: Aut2 peptidase family
B Family C55: YopJ protease family
B Family C56: PfpI endopeptidase family
C EcE24377A_2198 hchA; chaperone protein HchA K05523 hchA; D-lactate dehydratase / protein deglycase [EC:4.2.1.130 3.5.1.124]
C EcE24377A_3636 intracellular peptidase, PfpI family K05520 yhbO; deglycase [EC:3.5.1.124]
C EcE24377A_0456 thiJ; protein ThiJ K03152 thiJ; protein deglycase [EC:3.5.1.124]
B Family C57: vaccinia virus I7 peptidase family
B Family C58
B Family C59
B Family C60
B Family C63
B Family C64
B Family C65
B Family C67
B Family C69
B Family C70
B Family C75
B Family C76
B Family C78
B Family C79
C EcE24377A_2566 conserved hypothetical protein K18015 elaD; deubiquitinase [EC:3.4.22.-]
B Family C82
C EcE24377A_2272 ErfK/YbiS/YcfS/YnhG family protein K16291 erfK; L,D-transpeptidase ErfK/SrfK
C EcE24377A_1894 LysM domain/ErfK/YbiS/YcfS/YnhG family protein K19234 ynhG; L,D-transpeptidase YnhG
C EcE24377A_0889 ybiS; YbiS protein K19235 ybiS; L,D-transpeptidase YbiS
C EcE24377A_1235 LysM domain/ErfK/YbiS/YcfS/YnhG family protein K19236 ycfS; L,D-transpeptidase YcfS
C EcE24377A_1024 putative peptidoglycan binding domain K21470 ycbB; L,D-transpeptidase YcbB
B Family C83
B Family C85
B Family C86
B Family C88
B Family C89
B Family C97
B Family C98
B Family C110
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AGlutamic peptidases
B Family G1
B Family G4
B Family G5: prenyl protease 2 family
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AMetallo peptidases
B Family M1
C EcE24377A_1033 pepN; aminopeptidase N K01256 pepN; aminopeptidase N [EC:3.4.11.2]
B Family M2
B Family M3
C EcE24377A_3980 prlC; oligopeptidase A K01414 prlC; oligopeptidase A [EC:3.4.24.70]
C EcE24377A_1747 dcp; peptidyl-dipeptidase Dcp K01284 dcp; peptidyl-dipeptidase Dcp [EC:3.4.15.5]
B Family M4: thermolysin family
B Family M5: mycolysin family
B Family M6: immune inhibitor A family
B Family M7: snapalysin family
B Family M8: leishmanolysin family
B Family M9
B Family M10
B Family M12: astacin/adamalysin family
B Family M13: neprilysin family
B Family M14: carboxypeptidase A family
B Family M15: zinc D-Ala-D-Ala carboxypeptidase family
C EcE24377A_1677 ddpX; D-alanyl-D-alanine dipeptidase K08641 vanX; zinc D-Ala-D-Ala dipeptidase [EC:3.4.13.22]
C EcE24377A_1278 conserved hypothetical protein K17733 cwlK; peptidoglycan LD-endopeptidase CwlK [EC:3.4.-.-]
B Family M16: pitrilysin family
C EcE24377A_3141 ptrA; protease III K01407 ptrA; protease III [EC:3.4.24.55]
C EcE24377A_1684 pqqL; peptidase, M16B family K07263 pqqL; zinc protease [EC:3.4.24.-]
B Family M17: leucyl aminopeptidase family
C EcE24377A_4832 pepA; leucyl aminopeptidase K01255 CARP; leucyl aminopeptidase [EC:3.4.11.1]
C EcE24377A_2807 pepB; peptidase B K07751 pepB; PepB aminopeptidase [EC:3.4.11.23]
B Family M18
B Family M19: membrane dipeptidase family
B Family M20
C EcE24377A_2751 dapE; succinyl-diaminopimelate desuccinylase K01439 dapE; succinyl-diaminopimelate desuccinylase [EC:3.5.1.18]
C EcE24377A_1290 pepT; peptidase T K01258 pepT; tripeptide aminopeptidase [EC:3.4.11.4]
C EcE24377A_0269 pepD; aminoacyl-histidine dipeptidase K01270 pepD; dipeptidase D [EC:3.4.13.-]
C EcE24377A_1550 abgA; aminobenzoyl-glutamate utilization protein A K12940 abgA; aminobenzoyl-glutamate utilization protein A
C EcE24377A_1549 abgB; aminobenzoyl-glutamate utilization protein B K12941 abgB; aminobenzoyl-glutamate utilization protein B
C EcE24377A_0554 allC; allantoate amidohydrolase K02083 allC; allantoate deiminase [EC:3.5.3.9]
B Family M23
C EcE24377A_2086 metalloprotease, opacity-associated protein A family K19304 mepM; murein DD-endopeptidase [EC:3.4.24.-]
B Family M24
C EcE24377A_0171 map; methionine aminopeptidase, type I K01265 map; methionyl aminopeptidase [EC:3.4.11.18]
C EcE24377A_4366 pepQ; Xaa-Pro dipeptidase K01271 pepQ; Xaa-Pro dipeptidase [EC:3.4.13.9]
C EcE24377A_3236 pepP; Xaa-Pro aminopeptidase K01262 pepP; Xaa-Pro aminopeptidase [EC:3.4.11.9]
C EcE24377A_2675 ypdF; aminopeptidase YpdF K08326 ypdF; aminopeptidase [EC:3.4.11.-]
B Family M26
B Family M27
B Family M28: aminopeptidase Y family
C EcE24377A_3054 iap; alkaline phosphatase isozyme conversion peptidase K09612 iap; alkaline phosphatase isozyme conversion protein [EC:3.4.11.-]
B Family M29: aminopeptidase T family
B Family M32: carboxypeptidase Taq family
B Family M34: anthrax lethal factor family
B Family M35: deuterolysin family
B Family M36: fungalysin family
B Family M38: beta-aspartyl dipeptidase family
C EcE24377A_4927 iadA; beta-aspartyl peptidase K01305 iadA; beta-aspartyl-dipeptidase (metallo-type) [EC:3.4.19.-]
B Family M41: FtsH endopeptidase family
C EcE24377A_3663 hflB; ATP-dependent metallopeptidase HflB K03798 ftsH; cell division protease FtsH [EC:3.4.24.-]
B Family M42: glutamyl aminopeptidase family
C EcE24377A_4428 aminopeptidase K18530 frvX; putative aminopeptidase FrvX [EC:3.4.11.-]
B Family M43: cytophagalysin family
B Family M44
B Family M48: Ste24 endopeptidase family
C EcE24377A_2058 M48B family peptidase K03799 htpX; heat shock protein HtpX [EC:3.4.24.-]
C EcE24377A_1006 peptidase, M48B family K07387 K07387; metalloprotease [EC:3.4.24.-]
C EcE24377A_3270 peptidase, M48B family K07387 K07387; metalloprotease [EC:3.4.24.-]
C EcE24377A_2776 peptidase, M48 family K01423 bepA; beta-barrel assembly-enhancing protease [EC:3.4.-.-]
B Family M49: dipeptidyl-peptidase III family
B Family M50: S2P protease family
C EcE24377A_0180 rseP; RIP metalloprotease RseP K11749 rseP; regulator of sigma E protease [EC:3.4.24.-]
B Family M54
B Family M55: DppA aminopeptidase family
B Family M56
B Family M67
B Family M72
B Family M73
B Family M74
C EcE24377A_2623 mepA; penicillin-insensitive murein endopeptidase K07261 mepA; penicillin-insensitive murein DD-endopeptidase [EC:3.4.24.-]
B Family M80
B Family M82
B Family M85
B Family M88
B Family M90
C EcE24377A_2259 conserved hypothetical protein K09933 mtfA; MtfA peptidase
B Family M98
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AAsparagine peptide lyases
B Family N1
B Family N8
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AMixed peptidases
B Family P1: DmpA aminopeptidase family
B Family P2
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ASerine peptidases
B Family S1: chymotrypsin family
C EcE24377A_1805 peptidase, S1A (chymotrypsin) family K04775 ydgD; protease YdgD [EC:3.4.21.-]
C EcE24377A_0166 degP; protease Do K04771 degP; serine protease Do [EC:3.4.21.107]
C EcE24377A_3717 degQ; serine peptidase DegQ K04772 degQ; serine protease DegQ [EC:3.4.21.-]
C EcE24377A_3718 degS; periplasmic serine peptidase DegS K04691 hhoB; serine protease DegS [EC:3.4.21.-]
B Family S3: togavirin family
B Family S6
B Family S7: flavivirin family
B Family S8: subtilisin family
B Family S9: prolyl oligopeptidase family
C EcE24377A_2073 prtB; oligopeptidase B K01354 ptrB; oligopeptidase B [EC:3.4.21.83]
B Family S10
B Family S11: D-Ala-D-Ala carboxypeptidase A family
C EcE24377A_0657 dacA; serine-type D-Ala-D-Ala carboxypeptidase K07258 dacC; serine-type D-Ala-D-Ala carboxypeptidase (penicillin-binding protein 5/6) [EC:3.4.16.4]
C EcE24377A_0910 dacC; serine-type D-Ala-D-Ala carboxypeptidase K07258 dacC; serine-type D-Ala-D-Ala carboxypeptidase (penicillin-binding protein 5/6) [EC:3.4.16.4]
C EcE24377A_2301 dacD; serine-type D-Ala-D-Ala carboxypeptidase K07258 dacC; serine-type D-Ala-D-Ala carboxypeptidase (penicillin-binding protein 5/6) [EC:3.4.16.4]
C EcE24377A_2424 pbpG; penicillin-binding protein 7 K07262 pbpG; serine-type D-Ala-D-Ala endopeptidase (penicillin-binding protein 7) [EC:3.4.21.-]
B Family S12: D-Ala-D-Ala carboxypeptidase B family
C EcE24377A_0398 ampH; penicillin-binding protein AmpH K18988 ampH; serine-type D-Ala-D-Ala carboxypeptidase/endopeptidase [EC:3.4.16.4 3.4.21.-]
C EcE24377A_2716 beta-lactamase K21469 pbp4b; serine-type D-Ala-D-Ala carboxypeptidase [EC:3.4.16.4]
B Family S13: D-Ala-D-Ala peptidase C family
C EcE24377A_3667 dacB; D-alanyl-D-alanine carboxypeptidase/D-alanyl-D-alanine-endopeptidase K07259 dacB; serine-type D-Ala-D-Ala carboxypeptidase/endopeptidase (penicillin-binding protein 4) [EC:3.4.16.4 3.4.21.-]
B Family S14: ClpP endopeptidase family
C EcE24377A_0473 clpP; ATP-dependent Clp protease, proteolytic subunit ClpP K01358 clpP; ATP-dependent Clp protease, protease subunit [EC:3.4.21.92]
B Family S15
B Family S16: lon protease family
C EcE24377A_0475 lon; ATP-dependent protease La K01338 lon; ATP-dependent Lon protease [EC:3.4.21.53]
C EcE24377A_1069 peptidase, S16 (lon protease) family K04770 lonH; Lon-like ATP-dependent protease [EC:3.4.21.-]
B Family S21: assemblin family
B Family S24: LexA family
C EcE24377A_4596 lexA; LexA repressor K01356 lexA; repressor LexA [EC:3.4.21.88]
C EcE24377A_1328 umuD; protein UmuD K03503 umuD; DNA polymerase V [EC:3.4.21.-]
B Family S26: signal peptidase I family
C EcE24377A_2854 lepB; signal peptidase I K03100 lepB; signal peptidase I [EC:3.4.21.89]
B Family S28
B Family S31
B Family S32
B Family S33
B Family S41: C-terminal processing peptidase family
C EcE24377A_2059 prc; C-terminal processing peptidase K03797 E3.4.21.102; carboxyl-terminal processing protease [EC:3.4.21.102]
B Family S45
B Family S49: protease IV family
C EcE24377A_1990 sppA; protease 4 K04773 sppA; protease IV [EC:3.4.21.-]
C EcE24377A_1471 sohB; peptidase, S49 (protease IV) family K04774 sohB; serine protease SohB [EC:3.4.21.-]
B Family S50
B Family S51
C EcE24377A_4565 pepE; dipeptidase E K05995 pepE; dipeptidase E [EC:3.4.13.21]
B Family S53
B Family S54: Rhomboid family
C EcE24377A_3900 peptidase, S54 (rhomboid) family K02441 glpG; rhomboid protease GlpG [EC:3.4.21.105]
B Family S55: SpoIVB peptidase family
B Family S62
B Family S66
C EcE24377A_1337 ldcA; muramoyltetrapeptide carboxypeptidase K01297 ldcA; muramoyltetrapeptide carboxypeptidase [EC:3.4.17.13]
B Family S77: phage prohead processing peptidase family
B Family S78
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AThreonine peptidases
B Family T1: proteasome family
C EcE24377A_4468 hslV; ATP-dependent protease HslV K01419 hslV; ATP-dependent HslUV protease, peptidase subunit HslV [EC:3.4.25.2]
B Family T2
C EcE24377A_0899 L-asparaginase K13051 ASRGL1; L-asparaginase / beta-aspartyl-peptidase [EC:3.5.1.1 3.4.19.5]
B Family T3: gamma-glutamyltransferase family
C EcE24377A_3924 ggt; gamma-glutamyltransferase K00681 ggt; gamma-glutamyltranspeptidase / glutathione hydrolase [EC:2.3.2.2 3.4.19.13]
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APeptidases of unknown catalytic type
B Family U32
C EcE24377A_2375 peptidase, U32 family K08303 prtC; U32 family peptidase [EC:3.4.-.-]
C EcE24377A_1614 peptidase, U32 family K24847 rlhA; 23S rRNA 5-hydroxycytidine C2501 synthase
C EcE24377A_3641 peptidase, U32 family K24845 ubiV; 2-(all-trans-polyprenyl)phenol 6-hydroxylase (prephenate) UbiV [EC:1.97.1.15]
C EcE24377A_3640 peptidase, U32 family K24844 ubiU; 2-(all-trans-polyprenyl)phenol 6-hydroxylase (prephenate) UbiU [EC:1.97.1.15]
B Family U62
C EcE24377A_4805 pmbA; protein PmbA K03592 pmbA; PmbA protein
C EcE24377A_3727 tldD; protein TldD K03568 tldD; TldD protein
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APeptidase inhibitors
B Family I1: Kazal family
B Family I2: Kunitz - BPTI family
B Family I4: serpin family
B Family I11: ecotin family
C EcE24377A_2508 eco; ecotin K08276 eco; ecotin
B Family I17: WAP-type family
B Family I25: cystatin family
B Family I27: calpastatin family
B Family I32: IAP family
B Family I34: IA3 family
B Family I35: timp family
B Family I39: alpha2M family
C EcE24377A_2523 alpha-2-macroglobulin family protein K06894 yfhM; alpha-2-macroglobulin
C EcE24377A_2804 alpha-2-macroglobulin domain protein K06894 yfhM; alpha-2-macroglobulin
B Family I47: latexin family
B Family I49: proSAAS family
B Family I51: IC family
B Family I57: staphostatin B family
B Family I63
B Family I80
B Family I87
C EcE24377A_4733 hflC; HflC protein K04087 hflC; modulator of FtsH protease HflC
C EcE24377A_4732 hflK; HflK protein K04088 hflK; modulator of FtsH protease HflK
B Family I93
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#[ BRITE | KEGG2 | KEGG ]
#Last updated: August 20, 2025
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Classification taken and modified from MEROPS