|Other Names||Nitrogen permease regulator 2-like protein, NPR2-like protein, Gene 21 protein, G21 protein, Tumor suppressor candidate 4, NPRL2, TUSC4|
|Format||Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 1 mg/ml.|
|Storage||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C.|
|Precautions||This product is for research use only. Not for use in diagnostic or therapeutic procedures.|
|Function||As a component of the GATOR1 complex functions as an inhibitor of the amino acid-sensing branch of the TORC1 pathway. The GATOR1 complex strongly increases GTP hydrolysis by RRAGA and RRAGB within RRAGC-containing heterodimers, thereby deactivating RRAGs, releasing mTORC1 from lysosomal surface and inhibiting mTORC1 signaling. The GATOR1 complex is negatively regulated by GATOR2 the other GATOR subcomplex in this amino acid-sensing branch of the TORC1 pathway.|
|Cellular Location||Lysosome membrane. Note=Localization to lysosomes is amino acid-independent.|
|Tissue Location||Most abundant in skeletal muscle, followed by brain, liver and pancreas, with lower amounts in lung, kidney, placenta and heart. Expressed in the frontal lobe cortex as well as in the temporal, parietal, and occipital lobes (PubMed:27173016, PubMed:26505888). Expressed in most lung cancer cell lines tested.|
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Suppresses Src-dependent tyrosine phosphorylation and activation of PDPK1 and its downstream signaling. Down-regulates PDPK1 kinase activity by interfering with tyrosine phosphorylation at the Tyr-9 Tyr-373 and Tyr-376 residues. May act as a tumor suppressor. Suppresses cell growth and enhanced sensitivity to various anticancer drugs.
Spielewoy, N., et al. Eukaryotic Cell 9(4):592-601(2010)Otani, S., et al. J Surg Oncol 100(5):358-363(2009)Neklesa, T.K., et al. PLoS Genet. 5 (6), E1000515 (2009) :Anedchenko, E.A., et al. Mol. Biol. (Mosk.) 42(6):965-976(2008)Kurata, A., et al. Cancer Sci. 99(9):1827-1834(2008)
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