Purification and properties of L-galactono-gamma-lactone dehydrogenase, a key enzyme for ascorbic acid biosynthesis, from sweet potato roots

L-Galactono-gamma-lactone dehydrogenase (L-galactono-gamma-lactone:ferricytochrome c oxidoreductase [EC 1.3.2.3], GLDHase) which catalyzes the terminal step in the biosynthesis of L-ascorbic acid (ABA) has been purified from roots of sweet potato (Ipomaea batatas L., cv. Kintoki). Highly purified pr...

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Veröffentlicht in:	Journal of biochemistry (Tokyo) 1995, Vol.117 (1), p.120-124
Hauptverfasser:	Oba, K, Ishikawa, S, Nishikawa, M, Mizuno, H, Yamamoto, T
Format:	Artikel
Sprache:	eng
Schlagworte:	ascorbic acid Ascorbic Acid - biosynthesis biosynthesis enzyme activity Enzyme Stability galactose Ipomoea batatas Kinetics L-ascorbic acid L-galactono-γ-lactone dehydrogenase L-gulono-γ-lactone oxidase lactones Mitochondria - enzymology Molecular Weight oxidoreductases Oxidoreductases - chemistry Oxidoreductases - isolation & purification Oxidoreductases Acting on CH-CH Group Donors Plant Roots - enzymology plants purification Substrate Specificity substrates sweet potato (Ipomoea batatas) sweet potatoes Vegetables - enzymology
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