Proteomic analysis of outer membrane vesicles derived from Pseudomonas aeruginosa

Abstract Pseudomonas aeruginosa , an opportunistic human bacterial pathogen, constitutively secretes outer membrane vesicles (OMVs) into the extracellular milieu. Although recent progress has revealed that OMVs are essential for pathogenesis of P. aeruginosa , their proteins have not been comprehensively analyzed so far. In this study, we identified 338 vesicular proteins with high confidence by five separate LC‐MS/MS analyses. This global proteome profile provides a basis for future studies to elucidate the pathological functions of OMVs from P. aeruginosa .