Chemical genetics screen for enhancers of rapamycin identifies a specific inhibitor of an SCF family E3 ubiquitin ligase.
Chemical genetics screen for enhancers of rapamycin identifies a specific inhibitor of an SCF family E3 ubiquitin ligase.
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DOI:
10.1038/nbt.1645
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发表时间:
2010-07
影响因子:
46.9
通讯作者:
中科院分区:
文献类型:
--
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The target of rapamycin (TOR) plays a central role in eukaryotic cell growth control. With prevalent hyper-activation of the mTOR pathway in human cancers, novel strategies to enhance TOR pathway inhibition are highly desirable. We used a yeast-based platform to identify small-molecule enhancers of rapamycin (SMERs) and discovered an inhibitor of the SCFMet30 ubiquitin ligase (SMER3). The large SCF (Skp1-Cullin-F-box) family of ubiquitin ligases performs important functions in diverse cellular processes including transcription, cell-cycle control, and immune response. Accordingly, there would be great value in developing SCF ligase inhibitors that act by a defined mechanism to specifically inactivate ligase activity. We show here that SMER3 selectively inhibits SCFMet30 in vivo and in vitro, but not the closely related SCFCdc4. Our results demonstrate that there is no fundamental barrier to obtaining specific inhibitors to modulate function of individual SCF complexes, and suggest new strategies for combination therapy with rapamycin.
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DOI:
10.1073/pnas.011404098
发表时间:
2001-01-02
影响因子:
11.1
作者:
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通讯作者:
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影响因子:
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DOI:
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发表时间:
2008-04-18
影响因子:
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作者:
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通讯作者:
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影响因子:
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影响因子:
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作者:
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