Amino acids and peptides. XXVIII. Synthesis of peptide fragments related to eglin c and studies on the relationship between their structure and effects on human leukocyte elastase, cathepsin G and .ALPHA.-chymotrypsin.
摘要:
采用常规的溶液法合成了与来自家蚕血淋巴的抗蛋白酶eglin c(由70个氨基酸残基构成)相关的各种肽片段,并检验了它们对白细胞弹性蛋白酶、组织蛋白酶G和α-胰凝乳蛋白酶的抑制效应。其中,H-Arg-Glu-Tyr-Phe-OMe(eglin c 22-25)和H-Ser-Pro-Val-Thr-Leu-Asp-Leu-Arg-Tyr-OMe(eglin c 41-49)能抑制组织蛋白酶G和α-胰凝乳蛋白酶,但不能抑制白细胞弹性蛋白酶,而H-Thr-Asn-Val-Val-OMe(eglin c 60-63)能抑制白细胞弹性蛋白酶,但不能抑制组织蛋白酶G或α-胰凝乳蛋白酶,尽管eglin c对白细胞弹性蛋白酶、组织蛋白酶G和α-胰凝乳蛋白酶都具有强抑制作用。这些结果提示,eglin c与白细胞弹性蛋白酶、组织蛋白酶G和α-胰凝乳蛋白酶的相互作用部位可能各不相同。
Amino acids and peptides. XXVIII. Synthesis of peptide fragments related to eglin c and studies on the relationship between their structure and effects on human leukocyte elastase, cathepsin G and .ALPHA.-chymotrypsin.
摘要:
采用常规的溶液法合成了与来自家蚕血淋巴的抗蛋白酶eglin c(由70个氨基酸残基构成)相关的各种肽片段,并检验了它们对白细胞弹性蛋白酶、组织蛋白酶G和α-胰凝乳蛋白酶的抑制效应。其中,H-Arg-Glu-Tyr-Phe-OMe(eglin c 22-25)和H-Ser-Pro-Val-Thr-Leu-Asp-Leu-Arg-Tyr-OMe(eglin c 41-49)能抑制组织蛋白酶G和α-胰凝乳蛋白酶,但不能抑制白细胞弹性蛋白酶,而H-Thr-Asn-Val-Val-OMe(eglin c 60-63)能抑制白细胞弹性蛋白酶,但不能抑制组织蛋白酶G或α-胰凝乳蛋白酶,尽管eglin c对白细胞弹性蛋白酶、组织蛋白酶G和α-胰凝乳蛋白酶都具有强抑制作用。这些结果提示,eglin c与白细胞弹性蛋白酶、组织蛋白酶G和α-胰凝乳蛋白酶的相互作用部位可能各不相同。
Design, Synthesis, and Evaluation of Conformationally Constrained Tongs, New Inhibitors of HIV-1 Protease Dimerization
作者:Ahmed Bouras、Nicole Boggetto、Zohra Benatalah、Eve de Rosny、Sames Sicsic、Michèle Reboud-Ravaux
DOI:10.1021/jm9803976
日期:1999.3.1
interface leading to inactive enzyme, conformationally constrained "molecular tongs" have been designed and synthesized to interfere with one monomer end in a beta-sheet fashion. These molecules are based on two peptidic strands attached to an aromatic scaffold. Inhibitions (submicromolar range) were obtained with molecular tongs containing tripeptidic or tetrapeptidic arms attached to a pyridinediol- or