Integrating docking and molecular dynamics approaches for a series of proline-based 2,5-diketopiperazines as novel alpha beta-tubulin inhibitors

Abstract

In this work, docking tools were utilized in order to study the binding properties of more than five hundred of proline-based 2,5-diketopiperazine in the binding site of alpha beta-tubulin. Results revealed that 20 compounds among them showed lower binding energies in comparison with Tryprostatin-A, a well known tubulin inhibitor and therefore could be potential inhibitors of tubulin. However, the precise evaluation of binding poses represents the similar binding modes for all of these compounds and Tryprostatin-A. Finally, the best docked complex was subjected to a 25ns molecular dynamics simulation to further validate the proposed binding mode of this compound.