PMID: 29019676

Authors:

Harding RJ, Ferreira de Freitas R, Collins P, Franzoni I, Ravichandran M, Ouyang H, Juarez-Ornelas KA, Lautens M, Schapira M, von Delft F, Santhakumar V, Arrowsmith CH

Title:

Small Molecule Antagonists of the Interaction between the Histone Deacetylase 6 Zinc-Finger Domain and Ubiquitin.

Journal:

J Med Chem. 2017 Nov 9;60(21):9090-9096. doi: 10.1021/acs.jmedchem.7b00933. Epub , 2017 Oct 27.

Abstract:

Inhibitors of HDAC6 have attractive potential in numerous cancers. HDAC6 inhibitors to date target the catalytic domains, but targeting the unique zinc-finger ubiquitin-binding domain (Zf-UBD) of HDAC6 may be an attractive alternative strategy. We developed X-ray crystallography and biophysical assays to identify and characterize small molecules capable of binding to the Zf-UBD and competing with ubiquitin binding. Our results revealed two adjacent ligand-able pockets of HDAC6 Zf-UBD and the first functional ligands for this domain.