label: 3-methyl-2-oxobutanoate dehydrogenase (ferredoxin) activity
label_lc: 3-methyl-2-oxobutanoate dehydrogenase (ferredoxin) activity
description: "Catalysis of the reaction: 3-methyl-2-oxobutanoate + CoA + oxidized ferredoxin = S-(2-methylpropanoyl)-CoA + CO2 + reduced ferredoxin."