What controls TOR?

被引:32
作者
Jacinto, Estela [1 ]
机构
[1] Univ Med & Dent New Jersey, Robert Wood Johnson Med Sch, Dept Physiol & Biophys, Piscataway, NJ 08854 USA
关键词
enzyme mechanisms; eukaryotic gene expression; molecular genetics; phosphoinositides; protein function; protein synthesis; signal transduction;
D O I
10.1002/iub.56
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The target of rapamycin (TOR) is a protein kinase with numerous functions in cell growth control. Some of these functions can be potently inhibited by rapamycin, an immunosuppressive and potential anticancer drug. TOR exists as part of two functionally distinct protein complexes. The functions of TOR complex 1 (TORC1) are effectively inhibited by rapamycin, but the mechanism for this inhibition remains elusive. The identification of TORC2 and recent reports that rapamycin can inhibit TORC2 functions, in some cases, challenge current models of TOR regulation. This review discusses the latest findings in yeast and mammals on the possible mechanisms that control TOR activity leading to its many cellular functions. (c) 2008 IUBMB.
引用
收藏
页码:483 / 496
页数:14
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