WebApr 11, 2024 · mtorc1信号通路是通过mtorc1的激酶活性以磷酸化不同底物进而调控细胞代谢的核心通路之一。 ... 不同的氨基酸通过直接结合相应的感知蛋白,影响感知蛋白 … WebFeb 12, 2024 · The GATOR1 protein complex-comprising DEPDC5, NPRL2 and NPRL3-regulates the Rag GTPases as a GTPase-activating protein (GAP) for RAGA; loss of GATOR1 desensitizes mTORC1 signalling to nutrient starvation. GATOR1 components have no sequence homology to other proteins, so the function of GATOR1 at the …
Architecture of the human GATOR1 and GATOR1–Rag GTPases
WebMar 1, 2024 · In cancer cells with inactivating mutations in GATOR1, mTORC1 is hyperactive and insensitive to amino acid starvation, and such cells are hypersensitive to rapamycin, an mTORC1 inhibitor. Thus, Bar-Peled et al. (2013) concluded that they had identified a key negative regulator of the RAG GTPases and revealed that, like other … WebmTORC1, also known as mammalian target of rapamycin complex 1 or mechanistic target of rapamycin complex 1, ... GATOR1 inhibits Rags (it is a GTPase-activating protein for Rag subunits A/B) and GATOR2 activates Rags by inhibiting DEPDC5. Upstream signaling horb ort
GATOR2 complex–mediated amino acid signaling …
WebDec 16, 2024 · The GATOR2-GATOR1 signaling axis is essential for amino-acid-dependent mTORC1 activation. However, the molecular function of the GATOR2 complex remains unknown. Here, we report that disruption of the Ring domains of Mios, WDR24, or WDR59 completely impedes amino-acid-mediated mTORC1 activation. Mechanistically, via … WebAug 27, 2024 · In cancer cells with inactivating mutations in GATOR1, mTORC1 is hyperactive and insensitive to amino acid starvation, and such cells are hypersensitive to rapamycin, an mTORC1 inhibitor. Thus, Bar-Peled et al. (2013) concluded that they had identified a key negative regulator of the RAG GTPases and revealed that, like other … WebJan 12, 2024 · Therefore, GATOR2 functions upstream of GATOR1 as an activator of mTORC1 in amino acid signaling (22, 27). To examine the role of amino acid signaling in brain development, we asked how disrupting … loop couture