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Rab5 proteins regulate activation and localization of target of rapamycin complex 1

  • Dave Bridges
  • , Kaleigh Fisher
  • , Sergey N. Zolov
  • , Tingting Xiong
  • , Ken Inoki
  • , Lois S. Weisman
  • , Alan R. Saltiel

Research output: Contribution to journalArticlepeer-review

Abstract

The mechanistic target of rapamycin (mTOR) complex 1 is regulated by small GTPase activators and localization signals. Weexamine here the role of the small GTPase Rab5 in the localization and activation of TORC1 in yeast and mammalian cells. Rab5 mutants disrupt mTORC1 activation and localization in mammalian cells, whereas disruption of the Rab5 homolog in yeast, Vps21, leads to decreased TORC1 function. Additionally, regulation of PI(3)P synthesis by Rab5 and Vps21 is essential for TORC1 function in both contexts.

Original languageEnglish (US)
Pages (from-to)20913-20921
Number of pages9
JournalJournal of Biological Chemistry
Volume287
Issue number25
DOIs
StatePublished - Jun 15 2012
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Cell Biology

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