Slow reversible inhibitions of rabbit muscle aldolase with substrate analogues: synthesis, enzymatic kinetics and UV difference spectroscopy studies
作者:T. Gefflaut、C. Blonski、J. Périé
DOI:10.1016/s0968-0896(96)00221-0
日期:1996.12
stabilized iminium ion or conjugated enamine in the reaction catalyzed by rabbit muscle aldolase (EC 4.1.2.13) were investigated by enzymatic kinetics and UV difference spectroscopic techniques. Whereas the aromatic derivative led to competitive inhibition without detectable iminium ion formation, slow reversible inhibitions of aldolase by beta-dicarbonyl compounds was shown to have taken place. Conjugated
合成了具有芳香环或β-二羰基结构的各种二羟基丙酮-磷酸酯(DHAP)类似物。通过酶动力学和紫外差光谱技术研究了它们在兔肌肉醛缩酶(EC 4.1.2.13)催化的反应中形成稳定的亚胺离子或共轭烯胺的能力。尽管芳族衍生物导致竞争性抑制而没有可检测到的亚胺离子形成,但已显示出β-二羰基化合物对醛缩酶的缓慢可逆抑制。通过酶的比吸收值接近317 nm可以检测到在酶活性位点共轭烯胺的形成。