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Histidinol dehydrogenase (HDH) catalyzes two sequential oxidation reactions to produce histidine from histidinol via histidinaldehyde. In HDH proteins so far reported, two Cys residues are conserved. From the results of the studies on Salmonella typhimurium HDH, it has been proposed that one of
Histidinol dehydrogenase (HDH), a dimeric protein, catalyzes two sequential oxidation reactions to yield L-histidine from L-histidinol via L-histidinal. HDH contains 1 mol of Zn(II) per mol of subunit, and removal of this metal abolishes the enzymatic activity. On substitution of Zn(II) with
Cabbage histidinol dehydrogenase (HDH) oxidizes L-histidinol to L-histidine through two sequential NAD(+)-linked reactions via an alkaline-labile, L-histidinaldehyde intermediate. The kinetic mechanism of the overall reaction as well as the partial reactions involved in the overall catalysis were