نتایج جستجو برای: enzymatic extracts
تعداد نتایج: 142430 فیلتر نتایج به سال:
Cell-free extracts from Rickettsia typhi were examined for the presence or absence of pyrimidine phosphotransferase enzymes and compared with the enzymes of mouse L cells and Salmonella typhimurium. The organisms were grown in mouse L cells and in the yolk sacs of chicken embryos, purified by Renografin density gradient centrifugation, and ruptured in a French pressure cell. The enzymes for the...
Methylmalonyl-CoA mutase is a key enzyme in intermediary metabolism, and children deficient in enzyme activity have severe metabolic acidosis. We found that nitric oxide (NO) inhibits methylmalonyl-CoA mutase activity in rodent cell extracts. The inhibition of enzyme activity occurred within minutes and was not prevented by thiols, suggesting that enzyme inhibition was not occurring via NO reac...
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