RPTOR, KIAA1303, RAPTOR, Regulatory-associated protein of mTOR, P150 target of rapamycin (TOR)-scaffold protein
Key Feature
Clonality
Monoclonal
Clone Number
EP539Y
Host Species
Rabbit
Tested Applications
WBIHC
WB:1:1000 IHC
Species Reactivity
Human
Concentration
1mg/ml
Target Information
Gene Synonyms
KIAA1303 RAPTOR
Alternative Names
RPTOR KIAA1303 RAPTOR Regulatory-associated protein of mTOR P150 target of rapamycin (TOR)-scaffold protein
Molecular Weight(MW)
149038 Da
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
Tissue Specificity
Highly expressed in skeletal muscle, and in a lesser extent in brain, lung, small intestine, kidney and placenta
Cellular Localization
Cytoplasm. Lysosome. Note=Targeting to lysosomes depends on amino acid availability