Reaction catalyzed by 3-methyl-2-oxobutanoate dehydrogenase (ferredoxin) (1.2.7.7)
+
CoA
+
=
+
+
2-ketoisovalerate
+
CoA
+
benzyl viologen
=
S-(2-methylpropanoyl)-CoA
+
CO2
+
reduced benzyl viologen
