نتایج جستجو برای: protein tyrosine phosphatase 1b
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Protein tyrosine phosphatases (PTPases) regulate the tyrosine phosphorylation of target proteins involved in several biological activities including cell proliferation and transformation. Protein tyrosine phosphatase E (PTPE) contains duplicated PTPase-like domains and a short extracellular region. Using the fluorescence in situ hybridization method, the gene encoding PTPE (locus symbol Ptpre...
Megakaryocyte protein tyrosine phosphatase 2 (PTP-MEG2) is a tyrosine phosphatase expressed in megakaryocytic cells, and causes insulin sensitization when down regulated. Therefore, specific inhibitors of PTP-MEG2 are potential candidates for novel Type 2 Diabetes (T2DM)therapy. In this study, we discovered PTP-MEG2 inhibitors using high throughput and virtual screening (HTS/VS) and structural ...
Protein-tyrosine phosphatase 1B (PTP-1B) is a major protein-tyrosine phosphatase that has been implicated in the regulation of insulin action, as well as in other signal transduction pathways. To investigate the role of PTP-1B in vivo, we generated homozygotic PTP-1B-null mice by targeted gene disruption. PTP-1B-deficient mice have remarkably low adiposity and are protected from diet-induced ob...
Although the importance of protein tyrosine phosphorylation by tyrosine kinases in mitogenic signaling is well-accepted, recent studies also suggest that tyrosine dephosphorylation by protein tyrosine phosphatases (PTPases) play an equally important role. For example, both angiotensin II (Ang II) and insulin are known to mediate protein tyrosine phosphorylation and dephosphorylation events. The...
Protein tyrosine phosphorylation is a dynamic reversible process in which the level of phosphorylation, at any time, is the result of phosphatase and/or kinase activity. This balance is critical for control of growth and differentiation. The role of tyrosine phosphatases during nephrogenesis and in kidney disease requires delineation. Appropriate regulation of focal adhesion proteins such as fo...
Assessment of Protein-tyrosine Phosphatase 1B Substrate Specificity Using “Inverse Alanine Scanning”
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