Galactonolactone Dehydrogenase Requires a Redox-Sensitive Thiol for Optimal Production of Vitamin C
نویسندگان
چکیده
منابع مشابه
Galactonolactone dehydrogenase requires a redox-sensitive thiol for optimal production of vitamin C.
The mitochondrial flavoenzyme l-galactono-gamma-lactone dehydrogenase (GALDH) catalyzes the ultimate step of vitamin C biosynthesis in plants. We found that recombinant GALDH from Arabidopsis (Arabidopsis thaliana) is inactivated by hydrogen peroxide due to selective oxidation of cysteine (Cys)-340, located in the cap domain. Electrospray ionization mass spectrometry revealed that the partial r...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 2009
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.109.136929