a-ketoisocaproate, a-keto-b-methylvalerate, or a-ketoisovalerate + glutamate <=> leu, ile, or val + alpha-ketoglutarate [BCAT1]

Stable Identifier
R-HSA-508189
Type
Reaction [transition]
Species
Homo sapiens
Compartment
cytosol
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a-ketoisocaproate, a-keto-b-methylvalerate, or a-ketoisovalerate + glutamate <=> leu, ile, or val + alpha-ketoglutarate [BCAT1]
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Cytosolic branched-chain-amino-acid aminotransferase (BCAT1) catalyzes the reversible reactions of alpha-ketoisocaproate, alpha-keto-beta-methylvalerate, or a-ketoisovalerate with glutamate to form leucine, isoleucine, or valine, respectively, and alpha-ketoglutarate (2-oxoglutarate). The active enzyme is a homodimer (Goto et al. 2005).

Literature References
PubMed ID Title Journal Year
16141215 Structural determinants for branched-chain aminotransferase isozyme-specific inhibition by the anticonvulsant drug gabapentin

Hirotsu, K, Goto, M, Islam, MM, Conway, ME, Hutson, SM, Yennawar, NH, Miyahara, I

J Biol Chem 2005
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Event Information
Reverse Reaction
leu, ile, or val + alpha-ketoglutarate <=> a-ketoisocaproate, a-keto-b-methylvalerate, or a-ketoisovalerate + glutamate [BCAT1] (Homo sapiens)
Catalyst Activity

branched-chain-amino-acid transaminase activity of BCAT1 dimer [cytosol]

Physical Entity
BCAT1 dimer [cytosol] (Homo sapiens)
Activity
branched-chain-amino-acid transaminase activity (GO:0004084)
Orthologous Events
a-ketoisocaproate, a-keto-b-methylvalerate, or a-ketoisovalerate + glutamate <=> leu, ile, or val + alpha-ketoglutarate [BCAT1] (Bos taurus)
a-ketoisocaproate, a-keto-b-methylvalerate, or a-ketoisovalerate + glutamate <=> leu, ile, or val + alpha-ketoglutarate [BCAT1] (Caenorhabditis elegans)
a-ketoisocaproate, a-keto-b-methylvalerate, or a-ketoisovalerate + glutamate <=> leu, ile, or val + alpha-ketoglutarate [BCAT1] (Canis familiaris)
a-ketoisocaproate, a-keto-b-methylvalerate, or a-ketoisovalerate + glutamate <=> leu, ile, or val + alpha-ketoglutarate [BCAT1] (Danio rerio)
a-ketoisocaproate, a-keto-b-methylvalerate, or a-ketoisovalerate + glutamate <=> leu, ile, or val + alpha-ketoglutarate [BCAT1] (Dictyostelium discoideum)
a-ketoisocaproate, a-keto-b-methylvalerate, or a-ketoisovalerate + glutamate <=> leu, ile, or val + alpha-ketoglutarate [BCAT1] (Drosophila melanogaster)
a-ketoisocaproate, a-keto-b-methylvalerate, or a-ketoisovalerate + glutamate <=> leu, ile, or val + alpha-ketoglutarate [BCAT1] (Gallus gallus)
a-ketoisocaproate, a-keto-b-methylvalerate, or a-ketoisovalerate + glutamate <=> leu, ile, or val + alpha-ketoglutarate [BCAT1] (Mus musculus)
a-ketoisocaproate, a-keto-b-methylvalerate, or a-ketoisovalerate + glutamate <=> leu, ile, or val + alpha-ketoglutarate [BCAT1] (Rattus norvegicus)
a-ketoisocaproate, a-keto-b-methylvalerate, or a-ketoisovalerate + glutamate <=> leu, ile, or val + alpha-ketoglutarate [BCAT1] (Saccharomyces cerevisiae)
a-ketoisocaproate, a-keto-b-methylvalerate, or a-ketoisovalerate + glutamate <=> leu, ile, or val + alpha-ketoglutarate [BCAT1] (Schizosaccharomyces pombe)
a-ketoisocaproate, a-keto-b-methylvalerate, or a-ketoisovalerate + glutamate <=> leu, ile, or val + alpha-ketoglutarate [BCAT1] (Sus scrofa)
a-ketoisocaproate, a-keto-b-methylvalerate, or a-ketoisovalerate + glutamate <=> leu, ile, or val + alpha-ketoglutarate [BCAT1] (Xenopus tropicalis)
Authored
D'Eustachio, P  (2010-02-18)
Reviewed
Jassal, B  (2010-02-27)
Created
D'Eustachio, P  (2010-02-11)
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