| Literature DB >> 25187516 |
Valérie Poirier1, Horacio Bach1, Yossef Av-Gay2.
Abstract
Mycobacterium tuberculosis tyrosine phosphatase PtpA inhibits two key cellular events in macrophages required for the elimination of invading organisms, phagosome acidification, and maturation. Kinome analysis revealed multiple PtpA-dependent changes to the phosphorylation status of macrophage proteins upon M. tuberculosis infection. Among those proteins we show that PtpA dephosphorylates GSK3α on amino acid Tyr(279), which leads to modulation of GSK3α anti-apoptotic activity, promoting pathogen survival early during infection.Entities:
Keywords: Apoptosis; Macrophage; Mycobacterium tuberculosis; Protein-tyrosine Phosphatase (Tyrosine Phosphatase); Signal Transduction
Mesh:
Substances:
Year: 2014 PMID: 25187516 PMCID: PMC4200286 DOI: 10.1074/jbc.M114.582502
Source DB: PubMed Journal: J Biol Chem ISSN: 0021-9258 Impact factor: 5.157