Proteomics analysis of global regulatory cascades involved in clavulanic acid production and morphological development in Streptomyces clavuligerus

Journal of Industrial Microbiology & Biotechnology
Nicole L FergusonKapil Tahlan

Abstract

The genus Streptomyces comprises bacteria that undergo a complex developmental life cycle and produce many metabolites of importance to industry and medicine. Streptomyces clavuligerus produces the β-lactamase inhibitor clavulanic acid, which is used in combination with β-lactam antibiotics to treat certain β-lactam resistant bacterial infections. Many aspects of how clavulanic acid production is globally regulated in S. clavuligerus still remains unknown. We conducted comparative proteomics analysis using the wild type strain of S. clavuligerus and two mutants (ΔbldA and ΔbldG), which are defective in global regulators and vary in their ability to produce clavulanic acid. Approximately 33.5 % of the predicted S. clavuligerus proteome was detected and 192 known or putative regulatory proteins showed statistically differential expression levels in pairwise comparisons. Interestingly, the expression of many proteins whose corresponding genes contain TTA codons (predicted to require the bldA tRNA for translation) was unaffected in the bldA mutant.

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Citations

Dec 19, 2016·F1000Research·Keith F Chater
Mar 20, 2018·Applied Microbiology and Biotechnology·Bingbing HouHuizhan Zhang
Aug 12, 2020·Journal of Industrial Microbiology & Biotechnology·Yongjae LeeByung-Kwan Cho
Jul 25, 2020·Protein and Peptide Letters·Eser ÜnsaldıGülay Özcengiz
Oct 4, 2021·Journal of Industrial Microbiology & Biotechnology·Paloma Liras, Juan F Martín

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