PMID- 26588989 OWN - NLM STAT- MEDLINE DCOM- 20160301 LR - 20211203 IS - 1549-5477 (Electronic) IS - 0890-9369 (Print) IS - 0890-9369 (Linking) VI - 29 IP - 22 DP - 2015 Nov 15 TI - NLK phosphorylates Raptor to mediate stress-induced mTORC1 inhibition. PG - 2362-76 LID - 10.1101/gad.265116.115 [doi] AB - The mechanistic target of rapamycin (mTOR) is a central cell growth controller and forms two distinct complexes: mTORC1 and mTORC2. mTORC1 integrates a wide range of upstream signals, both positive and negative, to regulate cell growth. Although mTORC1 activation by positive signals, such as growth factors and nutrients, has been extensively investigated, the mechanism of mTORC1 regulation by stress signals is less understood. In this study, we identified the Nemo-like kinase (NLK) as an mTORC1 regulator in mediating the osmotic and oxidative stress signals. NLK inhibits mTORC1 lysosomal localization and thereby suppresses mTORC1 activation. Mechanistically, NLK phosphorylates Raptor on S863 to disrupt its interaction with the Rag GTPase, which is important for mTORC1 lysosomal recruitment. Cells with Nlk deletion or knock-in of the Raptor S863 phosphorylation mutants are defective in the rapid mTORC1 inhibition upon osmotic stress. Our study reveals a function of NLK in stress-induced mTORC1 modulation and the underlying biochemical mechanism of NLK in mTORC1 inhibition in stress response. CI - (c) 2015 Yuan et al.; Published by Cold Spring Harbor Laboratory Press. FAU - Yuan, Hai-Xin AU - Yuan HX AD - Key Laboratory of Molecular Medicine of Ministry of Education, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 20032, China; Department of Pharmacology and Moores Cancer Center, University of California at San Diego, La Jolla, California 92130, USA. FAU - Wang, Zhen AU - Wang Z AD - Key Laboratory of Molecular Medicine of Ministry of Education, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 20032, China; FAU - Yu, Fa-Xing AU - Yu FX AD - Children's Hospital, Institutes of Biomedical Sciences, Fudan University, Shanghai 20032, China; Department of Pharmacology and Moores Cancer Center, University of California at San Diego, La Jolla, California 92130, USA. FAU - Li, Fulong AU - Li F AD - Key Laboratory of Molecular Medicine of Ministry of Education, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 20032, China; FAU - Russell, Ryan C AU - Russell RC AD - Department of Pharmacology and Moores Cancer Center, University of California at San Diego, La Jolla, California 92130, USA. FAU - Jewell, Jenna L AU - Jewell JL AD - Department of Pharmacology and Moores Cancer Center, University of California at San Diego, La Jolla, California 92130, USA. FAU - Guan, Kun-Liang AU - Guan KL AD - Department of Pharmacology and Moores Cancer Center, University of California at San Diego, La Jolla, California 92130, USA. LA - eng GR - T32 CA121938/CA/NCI NIH HHS/United States GR - R35 CA196878/CA/NCI NIH HHS/United States GR - R01 GM051586/GM/NIGMS NIH HHS/United States GR - R35CA196878/CA/NCI NIH HHS/United States GR - R01GM51586/GM/NIGMS NIH HHS/United States GR - T32CA121938/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PL - United States TA - Genes Dev JT - Genes & development JID - 8711660 RN - 0 (Adaptor Proteins, Signal Transducing) RN - 0 (Multiprotein Complexes) RN - 0 (RPTOR protein, human) RN - 0 (Regulatory-Associated Protein of mTOR) RN - EC 2.7.11.1 (Mechanistic Target of Rapamycin Complex 1) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinases) SB - IM MH - Adaptor Proteins, Signal Transducing/*metabolism MH - Enzyme Activation MH - Gene Deletion MH - Gene Knock-In Techniques MH - HEK293 Cells MH - Humans MH - Mechanistic Target of Rapamycin Complex 1 MH - Mitogen-Activated Protein Kinases/genetics/*metabolism MH - Multiprotein Complexes/*metabolism MH - Osmotic Pressure/*physiology MH - Phosphorylation MH - Regulatory-Associated Protein of mTOR MH - TOR Serine-Threonine Kinases/*metabolism PMC - PMC4691891 OTO - NOTNLM OT - NLK OT - Raptor OT - cancer OT - mTOR OT - stress response EDAT- 2015/11/22 06:00 MHDA- 2016/03/02 06:00 PMCR- 2016/05/15 CRDT- 2015/11/22 06:00 PHST- 2015/11/22 06:00 [entrez] PHST- 2015/11/22 06:00 [pubmed] PHST- 2016/03/02 06:00 [medline] PHST- 2016/05/15 00:00 [pmc-release] AID - 29/22/2362 [pii] AID - 10.1101/gad.265116.115 [doi] PST - ppublish SO - Genes Dev. 2015 Nov 15;29(22):2362-76. doi: 10.1101/gad.265116.115.