Kumar P, Nagpaul J P, Singh B, Bansal R C, Sharma R
Experientia. 1978 Apr 15;34(4):434-5. doi: 10.1007/BF01935909.
Isatin has been found to inhibit rat testicular alkaline phosphatase (EC 3.1.3.1). That the inhibition is non-competitive as well as non-allosteric is evident from a) the hyperbolic curve relating inhibition as a function of inhibitor concentration; b) the small change in enthalpy, free energy and entropy; c) the number of isatin molecules associating with 1 molecule of the enzyme (n=1.29); and, d) the decrease in the values of both Km and Vmax in the presence of isatin.
已发现异吲哚酮可抑制大鼠睾丸碱性磷酸酶(EC 3.1.3.1)。从以下方面可明显看出这种抑制作用是非竞争性的且非别构性的:a)将抑制作用与抑制剂浓度相关联的双曲线;b)焓、自由能和熵的微小变化;c)与1个酶分子结合的异吲哚酮分子数(n = 1.29);以及d)在存在异吲哚酮的情况下,Km和Vmax值均降低。