Quantitative Proteomics Analysis Confirmed Oxidative Metabolism Predominates in Streptomyces coelicolor versus Glycolytic Metabolism in Streptomyces lividans

• Published in: Journal of proteome research 2017-07, Vol.16 (7), p.2597-2613
• Main Authors: Millan-Oropeza, Aaron, Henry, Céline, Blein-Nicolas, Mélisande, Aubert-Frambourg, Anne, Moussa, Fathi, Bleton, Jean, Virolle, Marie-Jöelle
• Format: Article
• Language: English
• Subjects: Aerobiosis - genetics; Amino Acids - metabolism; Anaerobiosis - genetics; Bacterial Proteins - genetics; Bacterial Proteins - metabolism; Gene Expression Profiling; Gene Expression Regulation, Bacterial; Glucose - metabolism; Glycolysis - genetics; Life Sciences; Molecular Sequence Annotation; Oxidative Phosphorylation; Oxygen - pharmacology; Proteomics - methods; Regulon - drug effects; Species Specificity; Streptomyces coelicolor - drug effects; Streptomyces coelicolor - genetics; Streptomyces coelicolor - metabolism; Streptomyces lividans - drug effects; Streptomyces lividans - genetics; Streptomyces lividans - metabolism
• ISSN: 1535-3893; 1535-3907
• DOI: 10.1021/acs.jproteome.7b00163

Recent physiological studies indicated that S. lividans metabolism was mainly glycolytic, whereas S. coelicolor metabolism was mainly oxidative. To determine whether such metabolic characteristics were correlated with consistent proteomics features, a comparative label-free, shotgun proteomics analysis of these strains was carried out. Among 2024 proteins identified, 360 showed significant differences in abundance between the strains. This study revealed that S. coelicolor catabolized glucose less actively than S. lividans, whereas the amino acids present in the medium were catabolized less actively by S. lividans than by S. coelicolor. The abundance of glycolytic proteins in S. lividans was consistent with its high glycolytic activity, whereas the abundance of proteins involved in the catabolism of amino acids in S. coelicolor provided an explanatory basis for its predominantly oxidative metabolism. In this study, conducted under conditions of low O2 availability, proteins involved in resistance to oxidative stress and those belonging to a DosR-like dormancy regulon were abundant in S. coelicolor, whereas tellurium resistance proteins were abundant in S. lividans. This indicated that the strains reacted differently to O2 limitation. Proteins belonging to the CDA, RED, and ACT pathways, usually highly expressed in S. coelicolor, were not detected under these conditions, whereas proteins of siderophores, 5-hydroxyectoine, and terpenoid biosynthetic pathways were present.