Discovery of a natural product-like c-myc G-quadruplex DNA groove-binder by molecular docking.

Autor: Dik-Lung Ma, Daniel Shiu-Hin Chan, Wai-Chung Fu, Hong-Zhang He, Hui Yang, Siu-Cheong Yan, Chung-Hang Leung
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: PLoS ONE, Vol 7, Iss 8, p e43278 (2012)
Druh dokumentu: article
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0043278
Popis: The natural product-like carbamide (1) has been identified as a stabilizer of the c-myc G-quadruplex through high-throughput virtual screening. NMR and molecular modeling experiments revealed a groove-binding mode for 1. The biological activity of 1 against the c-myc G-quadruplex was confirmed by its ability to inhibit Taq polymerase-mediated DNA extension and c-myc expression in vitro, demonstrating that 1 is able to control c-myc gene expression at the transcriptional level presumably through the stabilization of the c-myc promoter G-quadruplex. Furthermore, the interaction between carbamide analogues and the c-myc G-quadruplex was also investigated by in vitro experiments in order to generate a brief structure-activity relationship (SAR) for the observed potency of carbamide 1.
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