Selective hydrolysis of peptides, promoted by palladium aqua complexes: kinetic effects of the leaving group, pH, and inhibitors
作者:Longgen Zhu、Nenad M. Kostic
DOI:10.1021/ja00064a019
日期:1993.6
selective internal cleavage of peptides and proteins by coordination complexes as artifiicial metallopeptidases. Palladium(II) aqua complexes attached to the sulfur atom of methionine in peptides promote, under relatively mild conditions, regioselective hydrolysis of the amide bond involving the carboxylic group of the methionine residue to which they are attached. This is a regular amide bond, and no
这项研究是朝着通过配位复合物作为人工金属肽酶选择性内部裂解肽和蛋白质的方法迈出的一步。在相对温和的条件下,与肽中甲硫氨酸的硫原子相连的钯 (II) 水络合物促进了酰胺键的区域选择性水解,该酰胺键涉及它们所连接的甲硫氨酸残基的羧基。这是一个规则的酰胺键,不涉及裂解的事先激活。使用肽 AcMet-Gly、AcMet-Ala、AcMet-Ser、AcMet-Val、AcMet-Leu 和 AcMet-Ala-Ser 以及含有水、羟基、乙二胺和乙二胺的钯 (II) 络合物研究水解动力学。 1,5-二硫杂环辛烷配体