Polyketide Biosynthesis Proteins

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 Polyketide synthase (PKS)
   Modular type I PKS
   Iterative type I PKS
   Type II PKS
     C9-C14 cyclized polyketide type
     C7-C14 cyclized polyketide type
       Octaketide PKS
         K05551  actI1, oxyA, tcmK, snoa1, aknB, mtmP; minimal PKS ketosynthase (KS/KS alpha) [EC:2.3.1.- 2.3.1.260 2.3.1.235]
         K05552  actI2, oxyB, tcmL, snoa2, aknC, mtmK; minimal PKS chain-length factor (CLF/KS beta) [EC:2.3.1.- 2.3.1.260 2.3.1.235]
         K05553  actI3, oxyC, tcmM, snoa3, aknD, mtmS; minimal PKS acyl carrier protein
         K12420  actIII, oxyJ, snoaD, aknA; ketoreductase [EC:1.1.1.-]
         K05554  actVII; aromatase [EC:4.2.1.-]
         K05555  actIV; cyclase [EC:4.-.-.-]
       Nonaketide PKS
         K05551  actI1, oxyA, tcmK, snoa1, aknB, mtmP; minimal PKS ketosynthase (KS/KS alpha) [EC:2.3.1.- 2.3.1.260 2.3.1.235]
         K05552  actI2, oxyB, tcmL, snoa2, aknC, mtmK; minimal PKS chain-length factor (CLF/KS beta) [EC:2.3.1.- 2.3.1.260 2.3.1.235]
         K05553  actI3, oxyC, tcmM, snoa3, aknD, mtmS; minimal PKS acyl carrier protein
         K12420  actIII, oxyJ, snoaD, aknA; ketoreductase [EC:1.1.1.-]
         K14249  oxyK; bifunctional cyclase/aromatase [EC:4.2.1.-]
         K14250  oxyN, snoaM, dpsY, aknW, mtmY; cyclase
         K15926  jadI; cyclase
       Decaketide PKS
         K05551  actI1, oxyA, tcmK, snoa1, aknB, mtmP; minimal PKS ketosynthase (KS/KS alpha) [EC:2.3.1.- 2.3.1.260 2.3.1.235]
         K05552  actI2, oxyB, tcmL, snoa2, aknC, mtmK; minimal PKS chain-length factor (CLF/KS beta) [EC:2.3.1.- 2.3.1.260 2.3.1.235]
         K05553  actI3, oxyC, tcmM, snoa3, aknD, mtmS; minimal PKS acyl carrier protein
         K12420  actIII, oxyJ, snoaD, aknA; ketoreductase [EC:1.1.1.-]
         K14250  oxyN, snoaM, dpsY, aknW, mtmY; cyclase
         K15884  snoaE, aknE1; bifunctional aromatase (cyclase/dehydratase) [EC:4.2.1.-]
         K15886  tcmN; multifunctional cyclase / dehydratase / O-methyltransferase [EC:2.3.1.235]
   Type III PKS
   PKS-NRPS hybrid
 
 Nonribosomal peptide synthetase (NRPS)
   Linear NRPS
     Emericellamide synthetase
     Cyanopeptolin synthetase
     ACV synthetase
     Bacitracin synthetase
     Viomycin synthetase
     Pristinamycin I synthetase
     Tyrocidine synthetase
     Surfactin family lipopeptide synthetase
     Iturin family lipopeptide synthetase
     Fengycin family lipopeptide synthetase
     Arthrofactin type cyclic lipopeptide synthetase
     Vancomycin synthetase
     Nocardicin synthetase
     Bialaphos synthetase
     L-2-amino-4-methoxy-trans-3-butenoic acid synthetase
     Anabaenopeptin synthetase
       K28594  aptA; anabaenopeptin synthetase AptA
       K28595  aptB; anabaenopeptin synthetase AptB
       K28596  aptC; anabaenopeptin synthetase AptC
       K28597  aptD; anabaenopeptin synthetase AptD
     Linear gramicidin synthetase
   Iterative NRPS
   Nonlinear NRPS
     Yersiniabactin synthetase
     Pyochelin synthetase
     Mycobactin synthetase
       K04787  mbtA; mycobactin salicyl-AMP ligase [EC:6.3.2.-]
       K04788  mbtB; mycobactin phenyloxazoline synthetase
       K04790  mbtC; mycobactin polyketide synthetase MbtC
       K04791  mbtD; mycobactin polyketide synthetase MbtD
       K04789  mbtE; mycobactin peptide synthetase MbtE
       K04792  mbtF; mycobactin peptide synthetase MbtF
     Vibriobactin synthetase
     Myxochelin synthetase
     Petrobacin synthetase
     Syringomycin synthetase
     Vanchrobactin synthetase
     Isonitrile lipopeptide synthase
 
 Polyketide tailoring proteins
   Hydrolase
   Ketoreductase
   Oxygenase
     K14366  eryF, CYP107A; 6-deoxyerythronolide B hydroxylase [EC:1.14.15.35]
     K14370  eryK, CYP113A; erythromycin 12 hydroxylase [EC:1.14.13.154]
     K16008  oleP, CYP107D; cytochrome P450 monooxygenase OleP
     K16006  pikC, CYP107L; pikromycin synthase [EC:1.14.15.33]
     K14372  aveE, CYP171A; cytochrome P450 hydroxylase [EC:1.14.-.-]
     K15992  tylI, CYP113B; cytochrome P450 TylI
     K15991  tylHI, CYP105L1; 20-oxo-5-O-mycaminosyltylactone 23-monooxygenase [EC:1.14.15.34]
     K16022  rif19; flavoprotein hydroxylase
     K20789  CYP140A7; cytochrome P450 hydroxylase [EC:1.14.-.-]
     K24292  mycCI, CYP105L2; mycinamicin VIII C21 methyl hydroxylase [EC:1.14.-.-]
     K24390  mycG, CYP107E1; mycinamicin IV hydroxylase/epoxidase [EC:1.14.-.-]
     K16379  fkbD, rapJ; cytochrome P450 C-9 hydroxylase
     K16380  rapN; cytochrome P450 RapN
     K16389  amphN, nysN, fscP, pimG; cytochrome P450 monooxygenase
     K16390  amphL, nysL, pimD; cytochrome P450 monooxygenase
     K16400  epoK; cytochrome P450 enzyme
     K14630  actVA5; two-component flavin-dependent monooxygenase [EC:1.14.14.-]
     K14632  actVA6; C-6 monooxygenase
     K20420  ncsB3; 2-hydroxy-5-methyl-1-naphthoate 7-hydroxylase [EC:1.14.15.31]
     K21184  sgcC, mdpC; two-component FAD-dependent monooxygenase [EC:1.14.14.15 1.14.14.-]
     K21159  sgcF, ncsF2, kedF; epoxide hydrolase
     K21222  kedN3; cytochrome P450 monooxygenase [EC:1.14.-.-]
     K21257  calO2; orsellenic acid P450 oxidase [EC:1.14.-.-]
     K14253  oxyE; 6-methylpretetramide 4-monooxygenase [EC:1.14.13.232]
     K14252  oxyL; 6-methylpretetramide 4-monooxygenase / 4-hydroxy-6-methylpretetramide 12a-monooxygenase [EC:1.14.13.232 1.14.13.233]
     K14256  oxyS, cts8; anhydrotetracycline 6-monooxygenase / 5a,11a-dehydrotetracycline 5-monooxygenase [EC:1.14.13.38 1.14.13.234]
     K15941  snoaB, dnrG, aknX; deoxynogalonate / 12-deoxyaklanonic acid monooxygenase [EC:1.13.12.22 1.13.12.-]
     K15966  mtmOIV; monooxygenase [EC:1.14.13.-]
     K15969  tcmH; tetracenomycin F1 monooxygenase [EC:1.13.12.21]
     K15972  tcmG, elmG; tetracenomycin A2 monooxygenase-dioxygenase [EC:1.14.13.200]
     K16427  dpgC; (3,5-dihydroxyphenyl)acetyl-CoA 1,2-dioxygenase [EC:1.13.11.80]
     K14673  whiEII; putative monooxygenase
     K14672  whiEVIII; putative polyketide hydroxylase
     K15468  pksS, CYP107K1; cytochrome P450 family 107 subfamily K polypeptide 1
     K15470  rhiH; cytochrome P450 monooxygenase
     K16415  stiL; cytochrome P450 dependent monooxygenase
     K15319  APTC; monooxygenase
     K15386  APDB, CYP685A1; cytochrome P450 monooxygenase
     K15387  APDD; FAD-dependent monooxygenase
     K15388  APDE, CYP655; cytochrome P450 monooxygenase
   Methylase
     K14369  eryG; erythromycin 3''-O-methyltransferase [EC:2.1.1.254]
     K14374  aveD; avermectin B 5-O-methyltransferase [EC:2.1.1.-]
     K16381  fkbM; 31-O-methyltransferase
     K15995  tylE; demethylmacrocin O-methyltransferase [EC:2.1.1.102]
     K15996  tylF; macrocin O-methyltransferase [EC:2.1.1.101]
     K21540  mycE; mycinamicin VI 2''-O-methyltransferase [EC:2.1.1.238]
     K21539  mycF; mycinamicin III 3''-O-methyltransferase [EC:2.1.1.237]
     K13320  oleY; L-olivosyl-oleandolide 3-O-methyltransferase [EC:2.1.1.239]
     K16034  asm7; 20-O-methyltransferase
     K16038  asm10; N-methyltransferase [EC:2.1.1.-]
     K16028  asm17; O-methyltransferase
     K15467  rif14; 27-O-demethylrifamycin SV methyltransferase [EC:2.1.1.315]
     K15471  rhiI; O-methyltransferase [EC:2.1.1.-]
     K21192  mdpB1; methyltransferase [EC:2.1.1.-]
     K21189  mdpC6; O-methyltransferase [EC:2.1.1.-]
     K20421  ncsB1; 2,7-dihydroxy-5-methyl-1-naphthoate 7-O-methyltransferase [EC:2.1.1.303]
     K21215  ncsC5; N-methyltransferase [EC:2.1.1.-]
     K21178  sgcD4; O-methyltransferase [EC:2.1.1.-]
     K21255  calO6; orsellinic acid C2-O-methyltransferase [EC:2.1.1.-]
     K21258  calO1; orsellinic acid C3-O-methyltransferase [EC:2.1.1.-]
     K21223  kedN1; O-methyltransferase [EC:2.1.1.-]
     K21224  kedN5; radical SAM C-methyltransferase
     K14251  oxyF; C-methyltransferase [EC:2.1.1.-]
     K14255  oxyT, ctcO, cts6; 4-amino-anhydrotetracycline N4-methyltransferase [EC:2.1.1.335]
     K15942  snoaC, dnrC, dauC, aknG; O-methyltransferase / aklanonic acid methyltransferase [EC:2.1.1.- 2.1.1.288]
     K15959  mtmMI; O-methyltransferase [EC:2.1.1.-]
     K15963  mtmMII; C-methyltransferase [EC:2.1.1.-]
     K15962  mtmC; D-mycarose 3-C-methyltransferase
     K15886  tcmN; multifunctional cyclase / dehydratase / O-methyltransferase [EC:2.3.1.235]
     K15970  tcmO; 8-O-methyltransferase
     K15971  tcmP, elmP; O-methyltransferase [EC:2.1.1.-]
     K19567  elmMI; 8-demethyl-8-alpha-L-rhamnosyltetracenomycin-C 2'-O-methyltransferase [EC:2.1.1.305]
     K19568  elmMII; 8-demethyl-8-(2-methoxy-alpha-L-rhamnosyl)tetracenomycin-C 3'-O-methyltransferase [EC:2.1.1.306]
     K19569  elmMIII; 8-demethyl-8-(2,3-dimethoxy-alpha-L-rhamnosyl)tetracenomycin-C 4'-O-methyltransferase [EC:2.1.1.307]
     K19570  elmD; 8-demethyl-8-(2,3,4-trimethoxy-alpha-L-rhamnosyl)tetracenomycin-C O-methyltransferase [EC:2.1.1.-]
     K16168  bpsB, srsB; methyltransferase
     K16403  sorM; O-methyltransferase
     K16414  stiK; methyltransferase
   Glycosyltransferase
   Halogenase
     K16033  asm12; FADH2-dependent halogenase
     K21256  calO3; flavin-dependent halogenase
     K16431  cepH, sgcC3, mdpC3, kedY3; FAD-dependent halogenase [EC:1.14.19.-]
     K14257  ctcP, cts4, prnC; tetracycline 7-halogenase / FADH2 O2-dependent halogenase [EC:1.14.19.49 1.14.19.-]
     K15650  cmaB; non-haem Fe2+, alpha-ketoglutarate-dependent halogenase
     K28679  syrB2; L-threonyl-[L-threonyl-carrier protein] 4-chlorinase [EC:1.14.20.15]
   beta-Branched incorporating proteins
   Others
     K16037  asm11; 4,5-epoxidase
     K16024  asm13; methoxymalonate biosynthesis protein
     K16025  asm14; methoxymalonate biosynthesis acyl carrier protein
     K16026  asm15; methoxymalonate biosynthesis protein
     K16027  asm16; methoxymalonate biosynthesis protein
     K16036  asm19; 3-O-acyltransferase
     K16035  asm21; 7-O-carbamoyltransferase [EC:2.1.3.-]
     K15466  rifF, asm9; amide synthase
     K16023  rif20; acetyltransferase
     K14626  actVIA; actinorhodin biosynthesis protein ActVIA
     K14627  actVI3; dehydratase [EC:4.2.1.-]
     K14628  actVI2; enoyl reductase
     K14629  actVI4; enoyl reductase
     K14631  actVB; flavin reductase ActVB [EC:1.5.1.-]
     K16378  rapP, fkbP; pipecolate-incorporating enzyme
     K15389  APDG; acyl-CoA dehydrogenase
     K21160  sgcE2, ncsE2, kedE2; enediyne biosynthesis protein E2
     K21161  sgcE3, ncsE3, kedE3; enediyne biosynthesis protein E3
     K21162  sgcE4, ncsE4, kedE4; enediyne biosynthesis protein E4
     K21163  sgcE5, ncsE5, kedE5; enediyne biosynthesis protein E5
     K21164  sgcE7, ncsE7, kedE7; enediyne biosynthesis protein E7
     K21165  sgcE8, ncsE8, kedE8; enediyne biosynthesis protein E8
     K21166  sgcE9, ncsE9, kedE9; enediyne biosynthesis protein E9
     K21167  sgcE11, ncsE11, kedE11; enediyne biosynthesis protein E11
     K21168  calE1; enediyne biosynthesis protein CalE1
     K21169  calE2; enediyne biosynthesis protein CalE2
     K21170  calE3; enediyne biosynthesis protein CalE3
     K21171  calE4; enediyne biosynthesis protein CalE4
     K21172  calE5; enediyne biosynthesis protein CalE5
     K21173  calE6; methionine gamma-lyase
     K21174  calE9; enediyne biosynthesis protein CalE9
     K21186  sgcC5, mdpC5, kedY5; condensation enzyme
     K21180  sgcD6; 3-O-acyltransferase
     K21185  sgcE6, mdpE6, kedE6; flavin reductase
     K21191  mdpB2; CoA ligase [EC:6.2.1.-]
     K21193  mdpB3; acetyltransferase/esterase
     K21190  mdpC8; dehydrogenase
     K20423  ncsB2; 2-hydroxy-7-methoxy-5-methyl-1-naphthoate---CoA ligase [EC:6.2.1.43]
     K21209  ncsB4; acyltransferase
     K21225  kedN2; acyl-CoA synthetase
     K21226  kedN4; acyl-CoA N-acyltransferase
     K21261  calO4; acyltransferase
     K14254  oxyQ; aminotransferase
     K21301  oxyR, ctcR; 5a,11a-dehydrotetracycline reductase [EC:1.3.98.4]
     K21297  ctcQ; flavin reductase (NADH) [EC:1.5.1.36]
     K15943  snoaL, dnrD, dauD, aknH; nogalonic acid methyl ester cyclase / aklanonic acid methyl ester cyclase [EC:5.5.1.26 5.5.1.23]
     K15944  snoaF, dnrE, dauE, aknU; nogalaviketone/aklaviketone reductase [EC:1.1.1.- 1.1.1.362]
     K15967  mtmW; ketoreductase
     K15968  tcmI; tetracenomycin F2 cyclase [EC:4.2.1.154]
     K14244  oxyD; amidotransferase [EC:6.3.5.-]
     K15392  CPAD; cyclo-acetoacetyl-L-tryptophan dimethylallyltransferase [EC:2.5.1.-]
     K15393  CPAO; beta-cyclopiazonate dehydrogenase [EC:1.21.99.1]
     K15651  cmaC; aminocarboxycyclopropane-forming enzyme
     K16404  sorR; reductase
     K26570  clbQ; colibactin biosynthesis thioesterase
     K26571  clbL; colibactin biosynthesis amidase
     K26579  clbP; colibactin biosynthesis peptidase
     K23875  tmlU; marinolic acid---CoA ligase [EC:6.2.1.60]
 
 Nonribosomal peptide tailoring proteins

[ COMPOUND | BRITE | KEGG2 | KEGG ]
Last updated: December 18, 2025