Pyrrolidinedione derivatives as antibacterial agents with a novel mode of action
摘要:
The pseudopeptide pyrrolidinedione natural products moiramide B and andrimid represent a new class of antibiotics that target bacterial fatty acid biosynthesis. Structure activity relationship (SAR) studies revealed a high degree of variability for the fatty acid side chain, allowing optimization of physicochemical parameters, and a restricted SAR for the pyrrolidinedione group, indicating major relevance of this subunit for efficient target binding. (C) 2004 Elsevier Ltd. All rights reserved.
Insights into the Mechanistic Pathway of the<i>Pantoea agglomerans</i>Phenylalanine Aminomutase
作者:Susan Strom、Udayanga Wanninayake、Nishanka Dilini Ratnayake、Kevin D. Walker、James H. Geiger
DOI:10.1002/anie.201108525
日期:2012.3.19
The structure of the title aminomutase has been solved. The steric bulk of Phe 455 (green CPK structure) twists the phenylpropanoate ligand (green stick) by approximately 15° about the Cβ axis, which precludes a stronger bidentate salt bridge with Arg 323 (magenta structure). Instead, a weaker monodentate bridge may partially explain the different configuration of the product, relative to that obtained