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- W2895088038 abstract "Abstract The sexually transmitted disease gonorrhea (causative agent: Neisseria gonorrhoeae ) remains an urgent public health threat globally due to the repercussions on reproductive health, high incidence, widespread antimicrobial resistance (AMR), and absence of a vaccine. To mine gonorrhea antigens and enhance our understanding of gonococcal AMR at the proteome level, we performed the first large-scale proteomic profiling of a diverse panel ( n =15) of gonococcal strains, including the 2016 World Health Organization (WHO) reference strains. These strains show all existing AMR profiles, previously described in regard to phenotypic and reference genome characteristics, and are intended for quality assurance in laboratory investigations. Herein, these isolates were subjected to subcellular fractionation and labeling with tandem mass tags coupled to mass spectrometry and multi-combinatorial bioinformatics. Our analyses detected 901 and 723 common proteins in cell envelope and cytoplasmic subproteomes, respectively. We identified nine novel gonorrhea vaccine candidates. Expression and conservation of new and previously selected antigens were investigated. In addition, established gonococcal AMR determinants were evaluated for the first time using quantitative proteomics. Six new proteins, WHO_F_00238, WHO_F_00635, WHO_F_00745, WHO_F_01139, WHO_F_01144, and WHO_F_01226, were differentially expressed in all strains, suggesting that they represent global proteomic AMR markers, indicate a predisposition toward developing or compensating gonococcal AMR, and/or act as new antimicrobial targets. Finally, phenotypic clustering based on the isolates’ defined antibiograms and common differentially expressed proteins yielded seven matching clusters between established and proteome-derived AMR signatures. Together, our investigations provide a reference proteomics databank for gonococcal vaccine and AMR research endeavors, which enables microbiological, clinical, or epidemiological projects and enhances the utility of the WHO reference strains." @default.
- W2895088038 created "2018-10-12" @default.
- W2895088038 creator A5026014926 @default.
- W2895088038 creator A5026049665 @default.
- W2895088038 creator A5040077015 @default.
- W2895088038 creator A5069892567 @default.
- W2895088038 creator A5090754710 @default.
- W2895088038 date "2018-10-05" @default.
- W2895088038 modified "2023-09-23" @default.
- W2895088038 title "Quantitative proteomics of the 2016 WHONeisseria gonorrhoeaereference strains surveys vaccine candidates and antimicrobial resistance determinants" @default.
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