GalDH

L - galactose dehydrogenase(GalDH)

L - galactose dehydrogenase(GalDH) is a vital enzyme in the ascorbic acid metabolic pathway. It functions by catalyzing the oxidation of L - galactose to L - galactono - 1,4 - lactone. This reaction is a key step in the biosynthesis of ascorbic acid. The enzyme utilizes NAD⁺ as a co - factor, which accepts electrons during the oxidation of L - galactose. Subsequently, L - galactono - 1,4 - lactone is converted into ascorbic acid through the action of other enzymes. Overall, L - galactose dehydrogenase plays a crucial role in promoting the synthesis of ascorbic acid, thereby maintaining the appropriate level of ascorbic acid in the organism and facilitating various physiological processes that rely on this important antioxidant.