In the case of the removal of the carboxyl group also can occur in an oxidative and non-oxidative manner.
Oxidative decarboxylation
The enzyme which is capable of removing the carboxyl group in an oxidative way: α-keto acid dehydrogenase enzyme complex (KDC). The end product
Three mitochondrial complexes belong to this family:
- pyruvate dehydrogenase complex (PDC),
- α-KG dehydrogenase complex, and
- branched-chain