Cited by 1,306PI3K/AKT/mTOR signaling in cancerMetabolism, Diabetes, and CancerAutophagy in Disease and Therapy

Sestrin2 is a leucine sensor for the mTORC1 pathway

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Wolfson, Rachel L., Chantranupong, Lynne, Saxton, Robert A., Shen, Kuang, Scaria, Sonia M., Cantor, Jason R., Sabatini, David M.·2016·Science

Abstract

From sensing leucine to metabolic control: The mTORC1 protein kinase complex plays central roles in regulating cell growth and metabolism and is implicated in common human diseases such as diabetes and cancer. The level of the amino acid leucine tells an organism a lot about its physiological state, including how much food is available, how much insulin is going to be needed, and whether new muscle mass can be made (see the Perspective by Buel and Blenis). Wolfson et al. identified a biochemical sensor of leucine, Sestrin2, which connects the concentration of leucine to the control of organismal metabolism and growth. When leucine bound to Sestrin2, it was released from a complex with the mTORC1 regulatory factor GATOR2, activating the mTORC1 complex. Saxton et al. describe the crystal structure of Sestrin2 and show how it specifically detects leucine. Aylett et al. determined the structure of human mTORC1 by cryoelectron microscopy and the crystal structure of a regulatory subunit, Raptor. The results reveal the structural basis for the function and intricate regulation of this important enzyme, which is also a strategic drug target. Science , this issue p. 43 , p. 48 , p. 53 ; see also p. 25

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Authors
Wolfson, R. L., Chantranupong, L., Saxton, R. A., Shen, K., Scaria, S. M., Cantor, J. R., & Sabatini, D. M.
Affiliations
  • Broad Institute (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
  • Wolfson, Rachel L.
  • Chantranupong, Lynne
  • Sabatini, David M.
Venue
Science
Published
2016-01
Volume
351
Issue
6268
Pages
43-48
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2206269655
Cited by
1,306
References
47
Citations by year
2026: 121 · 2025: 132 · 2024: 126 · 2023: 127 · 2022: 145 · 2021: 154 · 2020: 128 · 2019: 85 · 2018: 103 · 2017: 94 · 2016: 86 · 2015: 5
FWCI
41.66
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc)
Funders
  • Department of Defense (W81XWH-07-0448)
  • NIH (R01 CA103866, AI47389, T32 GM007753, F30 CA189333, F31 CA180271)
  • Paul Gray Undergraduate Research Opportunities Program Fund (3143900)
  • Pfizer Fellow of the Life Sciences Research Foundation
  • Howard Hughes Medical Institute
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › PI3K/AKT/mTOR signaling in cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
Keywords
Sestrin2, leucine sensing, mTORC1, GATOR2, amino acid signaling, raptors, cell growth regulation, metabolic control, therapeutic target
MeSH terms
Mechanistic Target of Rapamycin Complex 1, Sestrins, Humans, Leucine, Nuclear Proteins, Protein Binding, Proteins, Signal Transduction, GTPase-Activating Proteins, Multiprotein Complexes, Metabolic Networks and Pathways, HEK293 Cells, TOR Serine-Threonine Kinases

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