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Information on EC 1.14.14.46 - pimeloyl-[acyl-carrier protein] synthase

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IUBMB Comments
A cytochrome P-450 (heme-thiolate) protein. The enzyme catalyses an oxidative C-C bond cleavage of long-chain acyl-[acyl-carrier protein]s of various lengths to generate pimeloyl-[acyl-carrier protein], an intermediate in the biosynthesis of biotin. The preferred substrate of the enzyme from the bacterium Bacillus subtilis is palmitoyl-[acyl-carrier protein] which then gives heptanal as the alkanal. The mechanism is similar to EC 1.14.15.6, cholesterol monooxygenase (side-chain-cleaving), followed by a hydroxylation step, which may occur spontaneously .
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The enzyme appears in viruses and cellular organisms
Synonyms
CYP107H1, cytochrome P450BioI, fatty acid hydroxylase, P450 BioI, P450BioI, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
a (7R,8R)-7,8-dihydroxy-long-chain-acyl-[acyl-carrier protein] + reduced flavodoxin + O2 = a 7-oxoheptanoyl-[acyl-carrier protein] + an n-alkanal + oxidized flavodoxin + 2 H2O
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a (7S)-7-hydroxy-long-chain-acyl-[acyl-carrier protein] + reduced flavodoxin + O2 = a (7R,8R)-7,8-dihydroxy-long-chain-acyl-[acyl-carrier protein] + oxidized flavodoxin + H2O
show the reaction diagram
a 7-oxoheptanoyl-[acyl-carrier protein] + oxidized flavodoxin + H2O = a pimeloyl-[acyl-carrier protein] + reduced flavodoxin + H+
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a long-chain acyl-[acyl-carrier protein] + 2 reduced flavodoxin + 3 O2 = pimeloyl-[acyl-carrier protein] + an n-alkanal + 2 oxidized flavodoxin + 3 H2O
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a long-chain acyl-[acyl-carrier protein] + reduced flavodoxin + O2 = a (7S)-7-hydroxy-long-chain-acyl-[acyl-carrier protein] + oxidized flavodoxin + H2O
show the reaction diagram
PATHWAY SOURCE
PATHWAYS
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