PRAS40 ist ein Gen, das durch das Symbol AKT1S1 kodiert wird. Im Allgemeinen auch bezeichnet als: Proline-rich AKT1 substrate 1; 40 kDa proline-rich AKT substrate; AKT1S1. PRAS40 hat eine Masse von 27.38kDa und eine Aminosäurelänge von 256.
Wir bieten 8 antikörper gegen PRAS40, aufgewachsen in Kaninchen, welche geeignet sind für WB, IHC, ELISA and ICC/IF mit Proben abgeleitet von Human, Maus und Ratte.
Gen- und Proteininformationen
UniProt Zusammenfassung
Subunit of mTORC1, which regulates cell growth and survival in response to nutrient and hormonal signals. 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. Within mTORC1, AKT1S1 negatively regulates mTOR activity in a manner that is dependent on its phosphorylation state and binding to 14-3-3 proteins. Inhibits RHEB-GTP-dependent mTORC1 activation. Substrate for AKT1 phosphorylation, but can also be activated by AKT1-independent mechanisms. May also play a role in nerve growth factor-mediated neuroprotection.
Entrez Zusammenfassung
AKT1S1 is a proline-rich substrate of AKT (MIM 164730) that binds 14-3-3 protein (see YWHAH, MIM 113508) when phosphorylated (Kovacina et al., 2003
Gewebespezifität
Widely expressed with highest levels of expression in liver and heart. Expressed at higher levels in cancer cell lines (e.g. A-549 and HeLa) than in normal cell lines (e.g. HEK293).
Posttranslationale Modifikation
Phosphorylated by AKT1 (PubMed:12524439). Phosphorylation at Thr-246 by DYRK3 relieves inhibitory function on mTORC1 (PubMed:23415227).
Zellort
Cytoplasm > Cytosol.
Found in the cytosolic fraction of the brain.
