Potent complement C3a receptor agonists derived from oxazole amino acids: Structure–activity relationships
作者:Ranee Singh、Anthony N. Reed、Peifei Chu、Conor C.G. Scully、Mei-Kwan Yau、Jacky Y. Suen、Thomas Durek、Robert C. Reid、David P. Fairlie
DOI:10.1016/j.bmcl.2015.10.038
日期:2015.12
Potent ligands for the human complement C3a receptor (C3aR) were developed from the almost inactive tripeptide Leu-Ala-Arg corresponding to the three C-terminal residues of the endogenous peptide agonist C3a. The analogous Leu-Ser-Arg was modified by condensing the serine side chain with the leucine carbonyl with elimination of water to form leucine-oxazole-arginine. Subsequent elaboration with a variety
人类补体C3a受体(C3aR)的有效配体是由几乎无活性的三肽Leu-Ala-Arg形成的,对应于内源性肽激动剂C3a的三个C末端残基。通过将丝氨酸侧链与亮氨酸羰基缩合并消除水来修饰类似的Leu-Ser-Arg,以形成亮氨酸-恶唑-精氨酸。随后对各种N末端酰胺基的修饰,产生了与人C3a一样有效的激动剂,可以刺激人巨噬细胞释放Ca 2+。讨论了结构-活动关系。