https://www.selleckchem.com/ph....armacological_epigen
Hsp70 proteins are a family of ancient and conserved chaperones. They play important roles in vital cellular processes, such as protein quality control and the stress response. Hsp70 proteins are a potential drug target for treatment of disease, particularly cancer. PES (2-phenylethynesulfonamide or pifithrin-μ) has been reported to be an inhibitor of Hsp70. However, the mechanism of PES inhibition is still unclear. In this study we found that PES can undergo a Michael addition reaction with Cys-574 and Cys-603 in the SBDα of
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