The branched-chain -keto acid dehydrogenase complex, which participates in amino acid catabolism, contains the same three types

The branched-chain α-keto acid dehydrogenase complex, which participates in amino acid catabolism, contains the same three types of enzymes as are in the pyruvate dehydrogenase and the α-ketoglutarate dehydrogenase complexes. Draw the reaction product when valine is deaminated as in the glutamate ⇌ α-ketoglutarate reaction and then is acted on by the branched-chain α-keto acid dehydrogenase.