화학공학소재연구정보센터
Journal of Physical Chemistry B, Vol.114, No.3, 1486-1497, 2010
Experimental and Computational Studies Indicate Specific Binding of pVHL Protein to Aurora-A Kinase
Overexpression of Aurora-A kinase is commonly detected in many cancers, whereas the von Hippel-Lindau protein (pVHL) is frequently Mutated or absent in renal cell carcinoma and is involved in the Ub proteasome complex, an important degradation pathway. In order to establish a link between Aurora-A overexpression and lack of pVHL protein, we hypothesized that pVHL regulates Aurora-A expression through a physical interaction. We present the first evidence, from both biological assays and Computational biology techniques, that human pVHL binds strongly to Aurora-A kinase. Extensive molecular modeling, docking, and dynamic Simulations demonstrate that the Structure of the pVHL protein would allow it to bind to the TPX2 binding region of Aurora-A. In view of Aurora-A's importance as a therapeutic target for the treatment of cancer, this observation provides novel insights into the Aurora-A/pVHL pathway. In addition, the detailed Aurora-A/pVHL binding Structure obtained will be Valuable for the design of future Aurora-A inhibitors as therapeutic agents.