Blackwell Publishing Journal Backfiles 1879-2005
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Process Engineering, Biotechnology, Nutrition Technology
In this study, the mode of action of vitamin K5 was investigated with Saccharomyces cerevisiae the test organism.Cysteine hydrochloride antagonized the anti-fungal action of vitamin K, suggesting that the vitamin has an affinity for sulfhydryl groups, which are necessary for the activity of certain enzymes. The sulfhydryl groups of yeast cells were reduced quantitatively when they were exposed to vitamin K5.Furthermore, studies showed that dehydrogenase was inactivated by vitamin K5.
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