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• W1983765228 abstract "Abstract Background Analysis of the pathogen interactome is a powerful approach for dissecting potential signal transduction and virulence pathways. It also offers opportunities for exploring new drug targets. Results In this study, a protein-protein interaction (PPI) network of Mycobacterium tuberculosis H37Rv was constructed using a homogenous protein mapping method, which has shown molecular chaperones, ribosomal proteins and ABC transporters to be highly interconnected proteins. A further analysis of this network unraveled the function of hypothetical proteins as well as a potential signaling pathway. A hypothetical protein, Rv2752c, which was linked to a metal cation-transporting ATPase, was characterized as a metal-beta-lactamase, through domain analysis in combination with an in vitro activity experiment. A second hypothetical protein, Rv1354c, and an unknown protein kinase, PknK, interacted with a similar group of inner membrane-associated ABC transporters in the PPI network. The interactions of Rv1354 with these proteins were also confirmed by a further bacterial two-hybrid analysis. According to protein domain structures, the unique M. tuberculosis Rv1354c gene was proposed, for the first time, to be responsible for the turnover of cyclic-di-GMP, a second messenger molecule in this bacterium. A further structure-based inhibitors screening for Rv1354c was also performed in silicon . Conclusion We constructed a comprehensive protein-protein interaction network for M. tuberculosis consisting of 738 proteins and 5639 interaction pairs. Our analysis unraveled the function of hypothetical proteins as well as a potential signaling pathway. The group of ABC transporters, PknK, and Rv1354c were proposed to constitute a potential membrane-associated signaling pathway that cooperatively responds to environmental stresses in M. tuberculosis . The study therefore provides valuable clues in exploring new signaling proteins, virulence pathways, and drug targets." @default.
• W1983765228 created "2016-06-24" @default.
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• W1983765228 date "2009-03-19" @default.
• W1983765228 modified "2023-10-09" @default.
• W1983765228 title "Uncovering new signaling proteins and potential drug targets through the interactome analysis of Mycobacterium tuberculosis" @default.
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• W1983765228 doi "https://doi.org/10.1186/1471-2164-10-118" @default.
• W1983765228 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2671525" @default.
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