RPTOR_HUMAN

Source: PM19886704
PM23856902
Marked as 'Integral membrane protein'
Confidence: low (only semi-automatic identification from reviews) Search PubMed for
(RBC AND this entry)
Gene names: RPTOR , KIAA1303, RAPTOR
Protein names and data: RPTOR_HUMAN , Regulatory-associated protein of mTOR; Raptor , p150 target of rapamycin (TOR)-scaffold protein Lenght: 1335 a.a.
Mass: 149038 Da
fasta formatted sequence
Function: Involved in the control of the mammalian target of rapamycin complex 1 (mTORC1) activity which regulates cell growth and survival, and autophagy in response to nutrient and hormonal signals; functions as a scaffold for recruiting mTORC1 substrates. mTORC1 is activated in response to growth factors or amino acids. Growth factor-stimulated mTORC1 activation involves a AKT1- mediated phosphorylation of TSC1-TSC2, which leads to the activation of the RHEB GTPase that potently activates the protein kinase activity of mTORC1. Amino acid-signaling to mTORC1 requires its relocalization to the lysosomes mediated by the Ragulator complex and the Rag GTPases. Activated mTORC1 up-regulates protein synthesis by phosphorylating key regulators of mRNA translation and ribosome synthesis. mTORC1 phosphorylates EIF4EBP1 and releases it from inhibiting the elongation initiation factor 4E (eiF4E). mTORC1 phosphorylates and activates S6K1 at 'Thr-389', which then promotes protein synthesis by phosphorylating PDCD4 and targeting it for degradation. Involved in ciliogenesis.
Cellular location: Cytoplasm. Lysosome. Note=Targeting to lysosomes depends on amino acid availability.
Tissue specificity: Highly expressed in skeletal muscle, and in a lesser extent in brain, lung, small intestine, kidney and placenta.

Database cross-references

UniProt: Q8N122
Ensembl: ENST00000306801
Ensembl: ENST00000570891
MIM: 607130
neXtProt: NX_Q8N122
Antibodypedia: Q8N122 (may not find the protein thus also not any antibody)
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