the dehydrogenase reaction of the cytoplasmic isozyme ( e1 ) of human aldehyde dehydrogenase ( ec 1.2.1.3 ) was inhibited while that of the mitochondrial isozyme ( e2 ) was stimulated by low levels of mg2+ ( up to about 150 microm ) .
C0010834
cytoplasmic
C0026237
mitochondrial