(S)-3-methyl-2-oxopentanoate + NH4(+) + NADH + H(+) => L-isoleucine + NAD(+) + H2O
(s)-3-methyl-2-oxopentanoate + nh4(+) + nadh + h(+) => l-isoleucine + nad(+) + h2o
(S)-3-methyl-2-oxopentanoate + NH4(+) + NADH + H(+) => L-isoleucine + NAD(+) + H2O
(s)-3-methyl-2-oxopentanoate + nh4(+) + nadh + h(+) => l-isoleucine + nad(+) + h2o