The CDK9 C-helix exhibits conformational plasticity that may explain the selectivity of CAN508.
The CDK9 C-helix exhibits conformational plasticity that may explain the selectivity of CAN508.
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DOI:
10.1021/cb2004516
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发表时间:
2012-05-18
影响因子:
4
通讯作者:
Endicott JA
中科院分区:
文献类型:
--
作者:
Baumli S;Hole AJ;Noble ME;Endicott JA
CDK9 is the kinase of positive transcription elongation factor b and facilitates the transition of paused RNA polymerase II to processive transcription elongation. CDK9 is a validated target for the treatment of cancer, cardiac hypertrophy, and human immunodeficiency virus. Here we analyze different CDK9/cyclin T variants to identify a form of the complex amenable to use in inhibitor design. To demonstrate the utility of this system, we have determined the crystal structures of CDK9/cyclin T and CDK2/cyclin A bound to the CDK9-specific inhibitor CAN508. Comparison of the structures reveals CDK9-specific conformational changes and identifies a CDK9-specific hydrophobic pocket, adjacent to the αC-helix. By comparison with a previously published structure of CDK9/cyclin T/human immunodeficiency virus TAT we find that the CDK9 αC-helix has a degree of conformational variability that has the potential to be exploited for inhibitor design.
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影响因子:
11.4
作者:
Baumli, Sonja;Lolli, Graziano;Johnson, Louise N.
通讯作者:
Johnson, Louise N.
影响因子:
--
作者:
Wang, Shudong;Griffiths, Gary;Fischer, Peter M.
通讯作者:
Fischer, Peter M.
影响因子:
13.3
作者:
Krystof, Vladimir;Chamrad, Ivo;Kohoutek, Jiri
通讯作者:
Kohoutek, Jiri
影响因子:
7.3
作者:
Krystof, Vladimir;Cankar, Petr;Strnad, Miroslav
通讯作者:
Strnad, Miroslav
DOI:
10.1073/pnas.0605224103
发表时间:
2006-10-24
影响因子:
11.1
作者:
Vedadi, Masoud;Niesen, Frank H.;Edwards, Aled M.
通讯作者:
Edwards, Aled M.