this study demonstrates that cytoplasmic malate dehydrogenase ( mdh-s ) catalyzes the reduction of aromatic alpha-keto acids in the presence of nadh , that the enzyme which has been described in the literature as aromatic alpha-keto acid reductase ( kar ; ec 1.1.1.96 ) is identical to mdh-s , and that the reduction of aromatic alpha-keto acids is due predominantly to a previously unrecognized secondary activity of mdh-s and the remainder is due to the previously recognized activity of lactate dehydrogenase ( ldh ) toward aromatic keto-acids .
C0030016
ec 1
C0024544
mdh-s