Reaction: ATP + 2-methylpropanoate = ADP + 2-methylpropanoyl phosphate
Other name(s): isobutyrate kinase
Systematic name: ATP:branched-chain-fatty-acid 1-phosphotransferase
Comments: 3-Methylbutanoate, 2-methylbutanoate, pentanoate, butanoate and propanoate can also act as acceptors (cf. EC 2.7.2.7 butyrate kinase).
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 84177-54-8
References:
1. Harwood, C.S. and Canale-Parola, E. Properties of acetate kinase isozymes and a branched-chain fatty acid kinase from a spirochete. J. Bacteriol. 152 (1982) 246-254. [PMID: 6288660]