title: Deletion of the elongation factor 4 gene (lepA) in Streptomyces coelicolor enhances the production of the calcium-dependent antibiotic.
abstract: Elongation factor 4 is a widely distributed translational GTPase also known as LepA. Its physiological role is ambiguous, as only a few phenotypes resulting from lepA null mutations have been reported. Here, we report that a Streptomyces coelicolor lepA null mutant overproduces the calcium-dependent antibiotic (CDA). Our findings are the first that connect LepA (encoded by SCO2562) to antibiotic production. They lend additional evidence that perturbations in the quaternary structure and function of the ribosome can positively affect antibiotic production in Streptomyces bacteria.
authors.affiliation: Department of Chemistry, Brown University, Providence, RI, USA.
authors.forename: Akosua
authors.initials: A
authors.lastname: Badu-Nkansah
authors.forename: Jason K
authors.initials: JK
authors.lastname: Sello
mesh_terms: D000900:Anti-Bacterial Agents / Q000378:metabolism*; D001426:Bacterial Proteins / Q000235:genetics* / Q000378:metabolism; D002118:Calcium / Q000378:metabolism*; D017353:Gene Deletion; D015964:Gene Expression Regulation, Bacterial; D010445:Peptide Elongation Factors / Q000235:genetics* / Q000378:metabolism; D048372:Streptomyces coelicolor / Q000235:genetics / Q000378:metabolism*
chemical_list: D000900:Anti-Bacterial Agents; D001426:Bacterial Proteins; D010445:Peptide Elongation Factors; D002118:Calcium