| Literature DB >> 20190824 |
Christopher M Thomas1, Joanne Hothersall, Christine L Willis, Thomas J Simpson.
Abstract
Mupirocin, a polyketide antibiotic produced by Pseudomonas fluorescens, is used to control the carriage of methicillin-resistant Staphylococcus aureus on skin and in nasal passages as well as for various skin infections. Low-level resistance to the antibiotic arises by mutation of the mupirocin target, isoleucyl-tRNA synthetase, whereas high-level resistance is due to the presence of an isoleucyl-tRNA synthetase with many similarities to eukaryotic enzymes. Mupirocin biosynthesis is carried out by a combination of type I multifunctional polyketide synthases and tailoring enzymes encoded in a 75 kb gene cluster. Chemical synthesis has also been achieved. This knowledge should allow the synthesis of new and modified antibiotics for the future.Entities:
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Year: 2010 PMID: 20190824 DOI: 10.1038/nrmicro2278
Source DB: PubMed Journal: Nat Rev Microbiol ISSN: 1740-1526 Impact factor: 60.633