+C Peptidases and inhibitors KO
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Peptidases and Inhibitors - Serratia proteamaculans
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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 Spro_0699 lipoprotein signal peptidase K03101 lspA; signal peptidase II [EC:3.4.23.36]
B Family A22: presenilin family
B Family A24: type IV prepilin peptidase family
C Spro_4241 Prepilin peptidase K02464 gspO; general secretion pathway protein O [EC:3.4.23.43 2.1.1.-]
B Family A25: gpr protease family
B Family A26: omptin family
B Family A28
B Family A31: HybD endopeptidase family
C Spro_2426 hydrogenase maturation protease 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
C Spro_1260 pyrrolidone-carboxylate peptidase K01304 pcp; pyroglutamyl-peptidase [EC:3.4.19.3]
C Spro_2993 pyrrolidone-carboxylate peptidase K01304 pcp; pyroglutamyl-peptidase [EC:3.4.19.3]
B Family C16
B Family C19: ubiquitin-specific protease family
B Family C25: gingipain family
B Family C26: gamma-glutamyl hydrolase family
C Spro_2565 glutamine amidotransferase class-I K01951 guaA; GMP synthase (glutamine-hydrolysing) [EC:6.3.5.2]
C Spro_3595 GMP synthase, large subunit K01951 guaA; GMP synthase (glutamine-hydrolysing) [EC:6.3.5.2]
C Spro_4317 glutamine amidotransferase class-I K01951 guaA; GMP synthase (glutamine-hydrolysing) [EC:6.3.5.2]
C Spro_2067 peptidase C26 K09473 puuD; gamma-glutamyl-gamma-aminobutyrate hydrolase [EC:3.5.1.94]
B Family C27
B Family C30
B Family C37
B Family C39
C Spro_2317 ABC transporter-related protein K13409 cvaB; ATP-binding cassette, subfamily B, bacterial CvaB/MchF/RaxB
B Family C40
C Spro_3244 NLP/P60 protein K13694 mepS; murein DD-endopeptidase / murein LD-carboxypeptidase [EC:3.4.-.- 3.4.17.13]
C Spro_2197 NLP/P60 protein K19303 mepH; murein DD-endopeptidase [EC:3.4.-.-]
C Spro_2161 NLP/P60 protein K13695 nlpC; probable lipoprotein NlpC
B Family C44
C Spro_3328 amidophosphoribosyltransferase K00764 purF; amidophosphoribosyltransferase [EC:2.4.2.14]
C Spro_4344 Glutamate synthase (ferredoxin) K00265 gltB; glutamate synthase (NADPH) large chain [EC:1.4.1.13]
C Spro_0011 glucosamine--fructose-6-phosphate aminotransferase, isomerizing K00820 glmS; glutamine---fructose-6-phosphate transaminase (isomerizing) [EC:2.6.1.16]
C Spro_1222 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 Spro_2475 intracellular protease, PfpI family K05520 yhbO; deglycase [EC:3.5.1.124]
C Spro_1082 DJ-1 family protein 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
B Family C82
C Spro_0598 ErfK/YbiS/YcfS/YnhG family protein K19235 ybiS; L,D-transpeptidase YbiS
C Spro_2185 ErfK/YbiS/YcfS/YnhG family protein K19236 ycfS; L,D-transpeptidase YcfS
C Spro_1726 Peptidoglycan-binding domain 1 protein 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
C Spro_1293 Abortive infection protein K07052 K07052; CAAX protease family protein
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AMetallo peptidases
B Family M1
C Spro_1734 aminopeptidase N K01256 pepN; aminopeptidase N [EC:3.4.11.2]
B Family M2
B Family M3
C Spro_4701 Oligopeptidase A K01414 prlC; oligopeptidase A [EC:3.4.24.70]
C Spro_2306 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
C Spro_0210 Serralysin K01406 prtC; serralysin [EC:3.4.24.40]
C Spro_2387 Serralysin K01406 prtC; serralysin [EC:3.4.24.40]
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 Spro_2346 peptidase M15D vanX D-ala-D-ala dipeptidase K08641 vanX; zinc D-Ala-D-Ala dipeptidase [EC:3.4.13.22]
C Spro_3474 putative phagelysin K17733 cwlK; peptidoglycan LD-endopeptidase CwlK [EC:3.4.-.-]
C Spro_4929 hypothetical protein K17733 cwlK; peptidoglycan LD-endopeptidase CwlK [EC:3.4.-.-]
B Family M16: pitrilysin family
C Spro_3815 peptidase M16 domain protein K01407 ptrA; protease III [EC:3.4.24.55]
B Family M17: leucyl aminopeptidase family
C Spro_0562 Leucyl aminopeptidase K01255 CARP; leucyl aminopeptidase [EC:3.4.11.1]
C Spro_2848 Leucyl aminopeptidase K01255 CARP; leucyl aminopeptidase [EC:3.4.11.1]
C Spro_3620 PepB aminopeptidase K07751 pepB; PepB aminopeptidase [EC:3.4.11.23]
B Family M18
B Family M19: membrane dipeptidase family
B Family M20
C Spro_3501 succinyl-diaminopimelate desuccinylase K01439 dapE; succinyl-diaminopimelate desuccinylase [EC:3.5.1.18]
C Spro_2009 peptidase T K01258 pepT; tripeptide aminopeptidase [EC:3.4.11.4]
C Spro_3359 peptidase T K01258 pepT; tripeptide aminopeptidase [EC:3.4.11.4]
C Spro_0963 aminoacyl-histidine dipeptidase K01270 pepD; dipeptidase D [EC:3.4.13.-]
C Spro_3206 amidohydrolase K01451 hipO; hippurate hydrolase [EC:3.5.1.32]
C Spro_4200 amidohydrolase K12940 abgA; aminobenzoyl-glutamate utilization protein A
C Spro_4201 amidohydrolase K12941 abgB; aminobenzoyl-glutamate utilization protein B
C Spro_0937 amidase, hydantoinase/carbamoylase family K02083 allC; allantoate deiminase [EC:3.5.3.9]
B Family M23
C Spro_2772 peptidase M23B K19304 mepM; murein DD-endopeptidase [EC:3.4.24.-]
B Family M24
C Spro_1365 methionine aminopeptidase, type I K01265 map; methionyl aminopeptidase [EC:3.4.11.18]
C Spro_3791 methionine aminopeptidase, type I K01265 map; methionyl aminopeptidase [EC:3.4.11.18]
C Spro_0263 peptidase M24 K01271 pepQ; Xaa-Pro dipeptidase [EC:3.4.13.9]
C Spro_3919 peptidase M24 K01262 pepP; Xaa-Pro aminopeptidase [EC:3.4.11.9]
B Family M26
B Family M27
B Family M28: aminopeptidase Y family
C Spro_0815 peptidase M28 K09612 iap; alkaline phosphatase isozyme conversion protein [EC:3.4.11.-]
B Family M29: aminopeptidase T family
B Family M32: carboxypeptidase Taq family
C Spro_2592 Carboxypeptidase Taq K01299 E3.4.17.19; carboxypeptidase Taq [EC:3.4.17.19]
B Family M34: anthrax lethal factor family
B Family M35: deuterolysin family
B Family M36: fungalysin family
B Family M38: beta-aspartyl dipeptidase family
B Family M41: FtsH endopeptidase family
C Spro_0483 ATP-dependent metalloprotease FtsH K03798 ftsH; cell division protease FtsH [EC:3.4.24.-]
B Family M42: glutamyl aminopeptidase family
B Family M43: cytophagalysin family
B Family M44
B Family M48: Ste24 endopeptidase family
C Spro_2120 HtpX domain protein K03799 htpX; heat shock protein HtpX [EC:3.4.24.-]
C Spro_3955 peptidase M48 Ste24p K07387 K07387; metalloprotease [EC:3.4.24.-]
C Spro_3517 peptidase M48 Ste24p K01423 bepA; beta-barrel assembly-enhancing protease [EC:3.4.-.-]
B Family M49: dipeptidyl-peptidase III family
B Family M50: S2P protease family
C Spro_3783 putative membrane-associated zinc metalloprotease 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 Spro_3373 peptidase U6 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 Spro_3110 protein of unknown function DUF980 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 Spro_2594 peptidase S1 and S6 chymotrypsin/Hap K04775 ydgD; protease YdgD [EC:3.4.21.-]
C Spro_0789 protease Do K04771 degP; serine protease Do [EC:3.4.21.107]
C Spro_4352 protease Do K04772 degQ; serine protease DegQ [EC:3.4.21.-]
C Spro_4353 periplasmic serine protease 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 Spro_2232 Prolyl oligopeptidase K01322 PREP; prolyl oligopeptidase [EC:3.4.21.26]
C Spro_1937 Oligopeptidase B K01354 ptrB; oligopeptidase B [EC:3.4.21.83]
C Spro_3467 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 Spro_1198 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 Spro_1628 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 Spro_2636 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 Spro_1352 peptidase S11 D-alanyl-D-alanine carboxypeptidase 1 K07262 pbpG; serine-type D-Ala-D-Ala endopeptidase (penicillin-binding protein 7) [EC:3.4.21.-]
C Spro_2561 peptidase S11 D-alanyl-D-alanine carboxypeptidase 1 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 Spro_0636 beta-lactamase K18988 ampH; serine-type D-Ala-D-Ala carboxypeptidase/endopeptidase [EC:3.4.16.4 3.4.21.-]
B Family S13: D-Ala-D-Ala peptidase C family
C Spro_0479 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 Spro_1095 ATP-dependent Clp protease, proteolytic subunit ClpP K01358 clpP; ATP-dependent Clp protease, protease subunit [EC:3.4.21.92]
C Spro_1978 Endopeptidase Clp K01358 clpP; ATP-dependent Clp protease, protease subunit [EC:3.4.21.92]
B Family S15
B Family S16: lon protease family
C Spro_1097 ATP-dependent protease La K01338 lon; ATP-dependent Lon protease [EC:3.4.21.53]
C Spro_1752 putative Lon protease K04770 lonH; Lon-like ATP-dependent protease [EC:3.4.21.-]
B Family S21: assemblin family
B Family S24: LexA family
C Spro_4460 transcriptional repressor, LexA family K01356 lexA; repressor LexA [EC:3.4.21.88]
C Spro_2605 peptidase S24 and S26 domain protein K03503 umuD; DNA polymerase V [EC:3.4.21.-]
B Family S26: signal peptidase I family
C Spro_3670 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
C Spro_1940 proline iminopeptidase K01259 pip; proline iminopeptidase [EC:3.4.11.5]
B Family S41: C-terminal processing peptidase family
C Spro_2119 carboxyl-terminal protease K03797 E3.4.21.102; carboxyl-terminal processing protease [EC:3.4.21.102]
B Family S45
C Spro_3142 Penicillin amidase K01434 pac; penicillin G amidase [EC:3.5.1.11]
B Family S49: protease IV family
C Spro_2722 signal peptide peptidase SppA, 67K type K04773 sppA; protease IV [EC:3.4.21.-]
C Spro_2659 Peptidase S49 domain protein K04774 sohB; serine protease SohB [EC:3.4.21.-]
B Family S50
B Family S51
C Spro_0257 Dipeptidase E K05995 pepE; dipeptidase E [EC:3.4.13.21]
B Family S53
B Family S54: Rhomboid family
C Spro_4639 Rhomboid family protein K02441 glpG; rhomboid protease GlpG [EC:3.4.21.105]
B Family S55: SpoIVB peptidase family
B Family S62
B Family S66
B Family S77: phage prohead processing peptidase family
B Family S78
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AThreonine peptidases
B Family T1: proteasome family
C Spro_4792 20S proteasome A and B subunits K01419 hslV; ATP-dependent HslUV protease, peptidase subunit HslV [EC:3.4.25.2]
B Family T2
C Spro_1549 peptidase T2 asparaginase 2 K13051 ASRGL1; L-asparaginase / beta-aspartyl-peptidase [EC:3.5.1.1 3.4.19.5]
B Family T3: gamma-glutamyltransferase family
C Spro_1057 gamma-glutamyltransferase K00681 ggt; gamma-glutamyltranspeptidase / glutathione hydrolase [EC:2.3.2.2 3.4.19.13]
C Spro_2484 gamma-glutamyltransferase K00681 ggt; gamma-glutamyltranspeptidase / glutathione hydrolase [EC:2.3.2.2 3.4.19.13]
C Spro_0930 Gamma-glutamyltransferase K22602 hpxW; oxamate amidohydrolase [EC:3.5.1.126]
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APeptidases of unknown catalytic type
B Family U32
C Spro_3561 peptidase U32 K08303 prtC; U32 family peptidase [EC:3.4.-.-]
C Spro_0503 peptidase U32 K24845 ubiV; 2-(all-trans-polyprenyl)phenol 6-hydroxylase (prephenate) UbiV [EC:1.97.1.15]
C Spro_0504 peptidase U32 K24844 ubiU; 2-(all-trans-polyprenyl)phenol 6-hydroxylase (prephenate) UbiU [EC:1.97.1.15]
B Family U62
C Spro_4384 peptidase U62 modulator of DNA gyrase K03592 pmbA; PmbA protein
C Spro_4404 peptidase U62 modulator of DNA gyrase 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 Spro_1637 proteinase inhibitor I11 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 Spro_3615 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 Spro_0434 HflC protein K04087 hflC; modulator of FtsH protease HflC
C Spro_0433 HflK protein K04088 hflK; modulator of FtsH protease HflK
B Family I93
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#[ BRITE | KEGG2 | KEGG ]
#Last updated: June 20, 2025
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Classification taken and modified from MEROPS