果糖酮酸 的英文怎麼說
中文拼音 [guǒtángtóngsuān]
果糖酮酸
英文
fructuronic acid-
The a - transglucosidase was selectively modified by pcmb, me, edc, clac, acetyl acetone and nbs, and changes in the activities of the enzyme have been detected. the reaction of a - transglucosidase with pcmb, me, edc and clac resulted in a strong inhibition of the enzyme activities which decreased with the increase of modifier concentration. the acetyl acetone and nbs were found without inhibition effect
酚丙酮、小涅代唬拍酷亞胺剛b引等化學修飾劑對a葡萄糖轉苦酶的幾種氨基酸殘基進行選擇修飾，並測定其酶活力變化，結果表明： pcmb 、 me 、 edc 、 ciac能顯著抑制酶的活性，活力的下降與修飾劑的濃度有關，乙酚丙酮、 nbs白巾飾對酶的奪製作用不明顯。Kinetic study shows that nadp + is the only valid coenzyme and that one substrate have no effect on the the other substrates " bind with the enzyme. products are competitive inhibitors, nadp + / nadph and 6 - phosphogluconate / ribulose - 5 - phosphate pairs are competitive whatever the concentration of the other substrates but noncompetitive versus the other substrates. therefore the kinetic mechanism of the 6 - phosphogluconate dehydrogenase is haldance - laidler - socquet random mechanism
兩種底物與酶的結合互不影響，而在產物抑制效果上， 5一磷酸核酮糖只競爭性抑制6一磷酸葡萄糖酸， nadph只競爭性抑制nadp + ，所以該酶催化機理是haidance一laidier一socquet隨機機理。
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