Enzyme Research

Research from GlaxoSmithKline, Collegeville yields new findings on enzyme research

Published in Cancer Weekly, December 2nd, 2008

"VX-680, also known as MK-0457, is an ATP-competitive small molecule inhibitor of the Aurora kinases that has entered phase II clinical trials for the treatment of cancer. We have solved the cocrystal structure of AurA/TPX2/VX-680 at 2.3 angstrom resolution," scientists in the United States report.

"In the crystal structure, VX-680 binds to the active conformation of AurA. The glycine-rich loop in AurA adopts a unique bent conformation, forming a pi-pi interaction with the phenyl group of VX-680. In contrast, in the published AurA/VX-680 structure, VX-680 binds to AurA in the inactive conformation, interacting with a hydrophobic pocket only present in the inactive...

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Source: Cancer Weekly (2008-12-02)

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