期刊
CHEMISTRY & BIOLOGY
卷 16, 期 10, 页码 1087-1096出版社
CELL PRESS
DOI: 10.1016/j.chembiol.2009.09.016
关键词
-
资金
- Deutsche Forschungsgemeinschaft [WI3285/1-1]
- National Institutes of Health [GM071014]
Most thiopeptide antibiotics target the translational machinery: thiostrepton (ThS) and nosiheptide (NoS) target the ribosome and inhibit translation factor function, whereas GE2270A/T binds to the elongation factor EF-Tu and prevents ternary complex formation. We have used several in vitro translational machinery assays to screen a library of thiopeptide antibiotic precursor compounds and identified four families of precursor compounds that are either themselves inhibitory or are able to relieve the inhibitory effects of ThS, NoS, or GE2270T. Some of these precursors represent distinct compounds with respect to their ability to bind to ribosomes. The results not only provide insight into the mechanism of action of thiopeptide compounds but also demonstrate the potential of such assays for identifying lead compounds that might be missed using conventional inhibitory screening protocols.
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