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|Title:||Construction and Validation of a RET TK Catalytic Domain by Homology Modeling||Authors:||Tuccinardi, T
|Issue Date:||2007||Project:||None||Journal:||JOURNAL OF CHEMICAL INFORMATION AND MODELING||Abstract:||
RET tyrosine kinase (TK) oncoproteins are potential targets for anticancer therapy. However, the search for novel RET inhibitors has been hampered by the lack of a 3D structure of the receptor. In this study, the "open" and the "closed" structure of the RET TK catalytic domain have been built by homology modeling techniques. The structures were validated by extensive docking studies with practically all the inhibitors reported in the literature and through molecular dynamics simulations of the resulting complexes. All the expected major interactions between the active domain amino acids and the inhibitors have been reproduced in their details. Furthermore, the proposed 3D models are in agreement with the results of available mutation studies. Therefore, these models could be profitably used to filter off from large libraries new potential hit compounds able to target this enzyme.
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