PMID- 21785113 OWN - NLM STAT- MEDLINE DCOM- 20120130 LR - 20221214 IS - 1745-7270 (Electronic) IS - 1672-9145 (Print) IS - 1672-9145 (Linking) VI - 43 IP - 9 DP - 2011 Sep TI - Spatial regulation of the mTORC1 system in amino acids sensing pathway. PG - 671-9 LID - 10.1093/abbs/gmr066 [doi] AB - The mammalian target of rapamycin (mTOR) is an evolutionarily conserved serine/threonine protein kinase that regulates numerous cellular processes including cell growth, proliferation, cell cycle, and autophagy. mTOR forms two different multi-protein complexes referred to as mTOR complex 1 (mTORC1) and mTORC2, and each complex exerts distinct functions exclusively. mTORC1 activity is sensitive to the selective inhibitor rapamycin, whereas mTORC2 is resistant. mTORC1 is regulated by many intra- and extra-cellular cues such as growth factors, nutrients, and energy-sensing signals, while mTORC2 senses ribosome maturation and growth factor signaling. This review focuses on current understandings by which mTORC1 pathway senses cellular nutrient availability for its activation. FAU - Suzuki, Tsukasa AU - Suzuki T AD - Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA. FAU - Inoki, Ken AU - Inoki K LA - eng GR - R01 DK124709/DK/NIDDK NIH HHS/United States GR - DK083491/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Review DEP - 20110723 PL - China TA - Acta Biochim Biophys Sin (Shanghai) JT - Acta biochimica et biophysica Sinica JID - 101206716 RN - 0 (Amino Acids) RN - 0 (Multiprotein Complexes) RN - 0 (Neuropeptides) RN - 0 (Proteins) RN - 0 (RHEB protein, human) RN - 0 (Ras Homolog Enriched in Brain Protein) RN - EC 2.7.1.1 (MTOR protein, human) RN - EC 2.7.11.1 (Mechanistic Target of Rapamycin Complex 1) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - EC 3.6.5.2 (Monomeric GTP-Binding Proteins) SB - IM MH - Amino Acids/*metabolism/pharmacology MH - Animals MH - Enzyme Activation/drug effects MH - Humans MH - Mechanistic Target of Rapamycin Complex 1 MH - Models, Biological MH - Monomeric GTP-Binding Proteins/metabolism MH - Multiprotein Complexes MH - Neuropeptides/metabolism MH - Proteins/*metabolism MH - Ras Homolog Enriched in Brain Protein MH - *Signal Transduction MH - TOR Serine-Threonine Kinases/*metabolism PMC - PMC3160786 EDAT- 2011/07/26 06:00 MHDA- 2012/01/31 06:00 PMCR- 2012/09/01 CRDT- 2011/07/26 06:00 PHST- 2011/07/26 06:00 [entrez] PHST- 2011/07/26 06:00 [pubmed] PHST- 2012/01/31 06:00 [medline] PHST- 2012/09/01 00:00 [pmc-release] AID - gmr066 [pii] AID - 10.1093/abbs/gmr066 [doi] PST - ppublish SO - Acta Biochim Biophys Sin (Shanghai). 2011 Sep;43(9):671-9. doi: 10.1093/abbs/gmr066. Epub 2011 Jul 23.