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2017 ; 12
(6
): e0178381
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Targeting YAP/TAZ-TEAD protein-protein interactions using fragment-based and
computational modeling approaches
#MMPMID28570566
Kaan HYK
; Sim AYL
; Tan SKJ
; Verma C
; Song H
PLoS One
2017[]; 12
(6
): e0178381
PMID28570566
show ga
The Hippo signaling pathway, which is implicated in the regulation of organ size,
has emerged as a potential target for the development of cancer therapeutics.
YAP, TAZ (transcription co-activators) and TEAD (transcription factor) are the
downstream transcriptional machinery and effectors of the pathway. Formation of
the YAP/TAZ-TEAD complex leads to transcription of growth-promoting genes.
Conversely, disrupting the interactions of the complex decreases cell
proliferation. Herein, we screened a 1000-member fragment library using Thermal
Shift Assay and identified a hit fragment. We confirmed its binding at the
YAP/TAZ-TEAD interface by X-ray crystallography, and showed that it occupies the
same hydrophobic pocket as a conserved phenylalanine of YAP/TAZ. This hit
fragment serves as a scaffold for the development of compounds that have the
potential to disrupt YAP/TAZ-TEAD interactions. Structure-activity relationship
studies and computational modeling were also carried out to identify more potent
compounds that may bind at this validated druggable binding site.