Inhibition of iodine-125 labeled ristocetin binding to Micrococcus luteus cells by the peptides related to bacterial cell wall mucopeptide precursors: quantitative structure-activity relationships
作者:Ki-Hwan Kim、Yvonne Martin、Ellen Otis、James Mao
DOI:10.1021/jm00121a018
日期:1989.1
Quantitative structure-activity relationships (QSAR) of N-Ac amino acids, N-Ac dipeptides, and N-Ac tripeptides in inhibition of 125I-labeled ristocetin binding to Micrococcus luteus cell wall have been developed to probe the details of the binding between ristocetin and N-acetylated peptides. The correlation equations indicate that (1) the binding is stronger for peptides in which the side chain of
已开发了N-Ac氨基酸,N-Ac二肽和N-Ac三肽在抑制125I标记的瑞氏菌素与黄褐微球菌细胞壁结合中的定量构效关系(QSAR),以探索ristocetin之间的结合细节和N-乙酰化的肽 相关方程表明(1)对于C末端氨基酸侧链具有较大摩尔折射率(MR)值的肽,其结合作用更强;(2)对于极性肽,其结合作用较弱。 (3)N-Ac二肽中的N末端氨基酸对结合亲和力的贡献是C末端氨基酸的12倍,