Download MendeleyDiscovery of Small Molecule Antagonists of the USP5 Zinc Finger Ubiquitin-Binding Domain.
Mann, M.K., Franzoni, I., de Freitas, R.F., Tempel, W., Houliston, S., Smith, L., Vedadi, M., Arrowsmith, C.H., Harding, R.J., Schapira, M.(2019) J Med Chem 62: 10144-10155
- PubMed: 31663737
- DOI: https://doi.org/10.1021/acs.jmedchem.9b00988
- Primary Citation of Related Structures:
6DXH, 6DXT, 6NFT, 6P9G - PubMed Abstract:
USP5 disassembles unanchored polyubiquitin chains to recycle free monoubiquitin, and is one of the 12 ubiquitin specific proteases featuring a zinc finger ubiquitin-binding domain (ZnF-UBD). This distinct structural module has been associated with substrate positioning or allosteric modulation of catalytic activity, but its cellular function remains unclear. We screened a chemical library focused on the ZnF-UBD of USP5, crystallized hits in complex with the protein, and generated a preliminary structure-activity relationship, which enables the development of more potent and selective compounds. This work serves as a framework for the discovery of a chemical probe to delineate the function of USP5 ZnF-UBD in proteasomal degradation and other ubiquitin signaling pathways in health and disease.
Organizational Affiliation:
Structural Genomics Consortium, University of Toronto, MaRS Centre , South Tower, 101 College St., Suite 700 , Toronto , Ontario M5G 1L7 , Canada.
