期刊
JOURNAL OF BIOLOGICAL CHEMISTRY
卷 287, 期 25, 页码 20913-20921出版社
AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC
DOI: 10.1074/jbc.M111.334060
关键词
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资金
- National Institutes of Health [DK-061618, GM-050403, DK-083491]
- American Diabetes Association fellowship
- Rackham graduate studies grant
The mechanistic target of rapamycin (mTOR) complex 1 is regulated by small GTPase activators and localization signals. We examine 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.
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