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ENZYME

ENZYME entry: EC 2.3.1.260

Accepted Name
tetracycline polyketide synthase
Reaction catalysed
malonamoyl-[OxyC ACP] + 8 malonyl-CoA + 8 H(+) = 18-carbamoyl-3,5,7,9,11,13,15,17-octaoxooctadecanoyl-[OxyC ACP] + 8 CO2 + 8 CoA
Comment(s)
  • The synthesis, in the bacterium Streptomyces rimosus of the tetracycline antibiotics core skeleton requires a minimal polyketide synthase (PKS) consisting of a ketosynthase (KS), a chain length factor (CLF), and an acyl-carrier protein (ACP).
  • Initiation involves an amide-containing starter unit that becomes the C-2 amide that is present in the tetracycline compounds.
  • Following the initiation, the PKS catalyzes the iterative condensation of 8 malonyl-CoA molecules to yield the polyketide backbone of tetracycline.
  • Throughout the proccess, the nascent chain is attached to the OxyC acyl-carrier protein.
Cross-references
BRENDA2.3.1.260
EC2PDB2.3.1.260
ExplorEnz2.3.1.260
KEGG Ligand Database for Enzyme Nomenclature2.3.1.260
IUBMB Enzyme Nomenclature2.3.1.260
MEDLINEFind literature relating to 2.3.1.260
MetaCyc2.3.1.260
Rhea expert-curated reactions2.3.1.260

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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.3.1.-
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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 2.-.-.-