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Surfaceome and exoproteome of a clinical sequence type 398 methicillin resistant Staphylococcus aureus strain

Abstract : For many years Staphylococcus aureus has been recognized as an important human pathogen. In this study, the surfacome and exoproteome of a clinical sample of MRSA was analyzed. The C2355 strain, previously typed as ST398 and spa-t011 and showing a phenotype of multiresistance to antibiotics, has several resistance genes. Using shotgun proteomics and bioinformatics tools, 236 proteins were identified in the surfaceome and 99 proteins in the exoproteome. Although many of these proteins are related to basic cell functions, some are related to virulence and pathogenicity like catalase and isdA, main actors in S. aureus infection, and others are related to antibiotic action or eventually resistance like penicillin binding protein, a cell-wall protein. Studying the proteomes of different subcellular compartments should improve our understanding of this pathogen, a microorganism with several mechanisms of resistance and pathogenicity, and provide valuable data for bioinformatics databases.
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Ricardo Monteiro, Michel Hébraud, Ingrid Chafsey, Christophe Chambon, Didier Viala, et al.. Surfaceome and exoproteome of a clinical sequence type 398 methicillin resistant Staphylococcus aureus strain. Biochemistry and Biophysics Reports, 2015, 3, pp.7-13. ⟨10.1016/j.bbrep.2015.07.004⟩. ⟨hal-02636025⟩

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