The initial velocity data and NADH inhibition behavior of the purified bovine liver mitochondrial matrix aldehyde dehydrogenase (EC 1.2.1.3, ALDH) indicated that the ALDH reaction might be proceeded by sequential ordered mechanism, first NAD^+ is boun...
The initial velocity data and NADH inhibition behavior of the purified bovine liver mitochondrial matrix aldehyde dehydrogenase (EC 1.2.1.3, ALDH) indicated that the ALDH reaction might be proceeded by sequential ordered mechanism, first NAD^+ is bound with the enzyme followed by aldehyde and then the oxidized product (acid) would be removed followed by NADH. This enzyme also showed esterase activity. We examined its esterase activity as well as dehydrogenase activity through various kinetic approchs and chemical modification techniques and we found that the active site of dehydrogenase reaction and esterase reaction might be different.