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Atomistic View of the Conformational Activation of Src Kinase Using the String Method with Swarms-of-Trajectories

By Wenxun Gan, Sichun Yang and Benoît Roux


AbstractThe inactive-to-active conformational transition of the catalytic domain of human c-Src tyrosine kinase is characterized using the string method with swarms-of-trajectories with all-atom explicit solvent molecular dynamics simulations. The activation process occurs in two main steps in which the activation loop (A-loop) opens first, followed by the rotation of the αC helix. The computed potential of mean force energy along the activation pathway displays a local minimum, which allows the identification of an intermediate state. These results show that the string method with swarms-of-trajectories is an effective technique to characterize complex and slow conformational transitions in large biomolecular systems

Publisher: Biophysical Society. Published by Elsevier Inc.
Year: 2009
DOI identifier: 10.1016/j.bpj.2009.06.016
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