The Enzyme Database

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Accepted name: 4-(γ-L-glutamylamino)butanoyl-[BtrI acyl-carrier protein] monooxygenase
Reaction: 4-(γ-L-glutamylamino)butanoyl-[BtrI acyl-carrier protein] + FMNH2 + O2 = 4-(γ-L-glutamylamino)-(2S)-2-hydroxybutanoyl-[BtrI acyl-carrier protein] + FMN + H2O
Other name(s): btrO (gene name)
Systematic name: 4-(γ-L-glutamylamino)butanoyl-[BtrI acyl-carrier protein],FMNH2:oxygen oxidoreductase (2-hydroxylating)
Comments: Catalyses a step in the biosynthesis of the side chain of the aminoglycoside antibiotics of the butirosin family. FMNH2 is used as a free cofactor. Forms a complex with a dedicated NAD(P)H:FMN oxidoreductase. The enzyme is not able to hydroxylate free substrates, activation by the acyl-carrier protein is mandatory. Octanoyl-S-[BtrI acyl-carrier protein] is also accepted.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Li, Y., Llewellyn, N.M., Giri, R., Huang, F. and Spencer, J.B. Biosynthesis of the unique amino acid side chain of butirosin: possible protective-group chemistry in an acyl carrier protein-mediated pathway. Chem. Biol. 12 (2005) 665–675. [DOI] [PMID: 15975512]
[EC created 2012]

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