Control by phospho-adenosinediphospho-ribose of NADP-dependent isocitrate dehydrogenase and 6-phosphogluconate dehydrogenase in Streptomyces griseus.
作者信息
Gräfe U, Bormann E J, Truckenbrodt G
出版信息
Z Allg Mikrobiol. 1980;20(10):607-11.
PMID:6784352
Abstract
The metabolic function of NAD(P)-glycohydrolase in the streptomycin-producing Streptomyces griseus was investigated. Phospho-adenosinediphospho-ribose, the product of NAD(P)-glycohydrolase reaction was shown to interfere as a competitive inhibitor not only with the glucose-6-phosphate dehydrogenase (VORONINA et al. 1978) but also with the NADP-dependent isocitrate and 6-phospho-gluconate dehydrogenases. Inhibition kinetics were studied with isocitrate dehydrogenase from pig heart and 6-phosphogluconate dehydrogenase from yeast as well as with mycelial extracts of a mutant of S. griseus lacking NAD(P)-glycohydrolase.
摘要
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