Department of Chemistry, University of British Columbia, Vancouver, BC, Canada, V6T 1Z1.
Org Lett. 2011 Aug 5;13(15):3936-9. doi: 10.1021/ol2014494. Epub 2011 Jul 12.
Two highly modified linear tetrapeptides, padanamides A (1) and B (2), are produced by laboratory cultures of a Streptomyces sp. obtained from a marine sediment. Padanamide B is cytotoxic to Jurkat cells, and a chemical genomics analysis using Saccharomyces cerevisiae deletion mutants suggested that padanamide A inhibits cysteine and methionine biosynthesis or that these amino acids are involved in the yeast's response to the peptide.
两种高度修饰的线性四肽,帕丹酰胺 A(1)和 B(2),是由从海洋沉积物中获得的链霉菌属实验室培养物产生的。帕丹酰胺 B 对 Jurkat 细胞具有细胞毒性,使用酿酒酵母缺失突变体的化学基因组学分析表明,帕丹酰胺 A 抑制半胱氨酸和蛋氨酸生物合成,或者这些氨基酸参与了酵母对该肽的反应。