作者:I. Yu. Filippova、E. N. Lysogorskaya
DOI:10.1023/a:1026061828077
日期:——
proteases could catalyze synthesis of a wide variety of peptides of various lengths and structures both in solution and on solid phase in organic solvents. The following modified proteases were studied as catalysts for enzymatic peptide synthesis in polar organic solvents (acetonitrile, dimethylformamide, and ethanol): pepsin sorbed on celite, a noncovalent complex of subtilisin with sodium dodecylsulfate
我们表明,修饰的蛋白酶可以在有机溶剂中的溶液和固相上催化各种长度和结构各异的肽的合成。研究了以下修饰的蛋白酶,作为在极性有机溶剂(乙腈,二甲基甲酰胺和乙醇)中酶促肽合成的催化剂:吸附在硅藻土上的胃蛋白酶,枯草杆菌蛋白酶与十二烷基硫酸钠的非共价复合物,以及枯草杆菌蛋白酶或嗜热菌蛋白酶共价固定在聚乙烯基冷冻凝胶上醇。枯草杆菌蛋白酶与十二烷基硫酸钠和固定的枯草杆菌蛋白酶的非共价复合物的使用对于多肽片段的片段缩合特别有希望,该片段包含侧链中带有未保护离子源基团的三官能氨基酸残基,例如Lys,Arg,His,Glu和Asp 。