Reaction catalyzed by branched-chain alpha-keto acid dehydrogenase system (1.2.1.25)
+
CoA
+
NAD+
=
+
+
NADH
+
3-methyl-2-oxobutanoate
+
CoA
+
NAD+
=
2-methylpropanoyl-CoA
+
CO2
+
NADH
+
H+
