نتایج جستجو برای: protein tyrosine phosphatase non
تعداد نتایج: 2476159 فیلتر نتایج به سال:
As most intracellular signaling takes place via cascades of phosphorylation and dephosphorylation of tyrosines, protein tyrosine phosphatases have emerged as new and promising targets. Among them, protein tyrosine phosphatase 1B (PTP1B) negatively regulates insulin signaling by dephosphorylation of key tyrosine residues within the regulatory domain of the β-subunit of the insulin receptor, ther...
Involvement of the Wiskott-Aldrich syndrome protein (WASp) in promoting cell activation requires its release from autoinhibitory structural constraints and has been attributed to WASp association with activated cdc42. Here, however, we show that T cell development and T cell receptor (TCR)-induced proliferation and actin polymerization proceed normally in WASp-/- mice expressing a WASp transgen...
We have used two approaches to identify possible substrates of the insulin receptor (IR) tyrosine kinase. First, we used a potent tyrosine phosphatase inhibitor, phenylarsine oxide (PAO), which is reported to be specific for the insulin-induced signal transduction route, to augment tyrosine phosphorylation. Second, we used src homology 2 (SH2) domains fused to glutathione S-transferase as high ...
Epidermal growth factor receptor (EGFR)-targeted tyrosine kinase inhibitors (TKIs) have emerged as first-line drugs for non-small cell lung cancers (NSCLCs). However, the resistance to TKIs represents the key limitation for their therapeutic efficacy. We found that miR-26a was upregulated in gefitinib-refractory NSCLCs; miR-26a is downstream of EGFR signaling and directly targets and silences p...
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