|Superclasses:||Reactions Classified By Conversion Type → Simple Reactions → Chemical Reactions|
|Reactions Classified By Substrate → Small-Molecule Reactions|
EC Number: 188.8.131.52
Note that this reaction is not considered to be physiologically relevant.
Note that this reaction equation differs from the official Enzyme Commission reaction equation for this EC number, which can be found here .
The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the direction in which it was curated.
Most BioCyc compounds have been protonated to a reference pH value of 7.3, and some reactions have been computationally balanced for hydrogen by adding free protons. Please see the PGDB Concepts Guide for more information.
Mass balance status: Balanced.
Enzyme Commission Primary Name: 8-amino-7-oxononanoate synthase
Enzyme Commission Synonyms: 7-keto-8-aminopelargonic acid synθse, 7-keto-8-aminopelargonic synθse, 8-amino-7-oxopelargonate synthase, bioF (gene name)
Enzyme Commission Summary:
A pyridoxal-phosphate protein. The enzyme catalyses the decarboxylative condensation of L-alanine and pimeloyl-[acyl-carrier protein], a key step in the pathway for biotin biosynthesis. Pimeloyl-CoA can be used with lower efficiency [[Lin10].
Alexeev98: Alexeev D, Alexeeva M, Baxter RL, Campopiano DJ, Webster SP, Sawyer L (1998). "The crystal structure of 8-amino-7-oxononanoate synthase: a bacterial PLP-dependent, acyl-CoA-condensing enzyme." J Mol Biol 1998;284(2);401-19. PMID: 9813126
Eisenberg68: Eisenberg MA, Star C (1968). "Synthesis of 7-oxo-8-aminopelargonic acid, a biotin vitamer, in cell-free extracts of Escherichia coli biotin auxotrophs." J Bacteriol 1968;96(4);1291-7. PMID: 4879561
Ploux99: Ploux O, Breyne O, Carillon S, Marquet A (1999). "Slow-binding and competitive inhibition of 8-amino-7-oxopelargonate synthase, a pyridoxal-5'-phosphate-dependent enzyme involved in biotin biosynthesis, by substrate and intermediate analogs. Kinetic and binding studies." Eur J Biochem 259(1-2);63-70. PMID: 9914476
Webster00: Webster SP, Alexeev D, Campopiano DJ, Watt RM, Alexeeva M, Sawyer L, Baxter RL (2000). "Mechanism of 8-amino-7-oxononanoate synthase: spectroscopic, kinetic, and crystallographic studies." Biochemistry 39(3);516-28. PMID: 10642176
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