A novel mode of ubiquitin recognition by the ubiquitin-binding zinc finger domain of WRNIP1.Suzuki, N., Rohaim, A., Kato, R., Dikic, I., Wakatsuki, S., Kawasaki, M.
(2016) Febs J. --: --
- PubMed: 27062441
- DOI: 10.1111/febs.13734
- Primary Citation of Related Structures:
- PubMed Abstract:
The ubiquitin-binding zinc finger (UBZ) is a type of zinc-coordinating β-β-α fold domain found mainly in proteins involved in DNA repair and transcriptional regulation. Here, we report the crystal structure of the UBZ domain of Y-family DNA polymeras ...
The ubiquitin-binding zinc finger (UBZ) is a type of zinc-coordinating β-β-α fold domain found mainly in proteins involved in DNA repair and transcriptional regulation. Here, we report the crystal structure of the UBZ domain of Y-family DNA polymerase (pol) η and the crystal structure of the complex between the UBZ domain of Werner helicase-interacting protein 1 (WRNIP1) and ubiquitin, crystallized using the GFP fusion technique. In contrast to the pol η UBZ, which has been proposed to bind ubiquitin via its C-terminal α-helix, ubiquitin binds to a novel surface of WRNIP1 UBZ composed of the first β-strand and the C-terminal α-helix. In addition, we report the structure of the tandem UBZ domains of Tax1-binding protein 1 (TAX1BP1) and show that the second UBZ of TAX1BP1 binds ubiquitin, presumably in a manner similar to that of WRNIP1 UBZ. We propose that UBZ domains can be divided into at least two different types in terms of the ubiquitin-binding surfaces: the pol η type and the WRNIP1 type.
Cardiovascular Research institute, the University of California at San Francisco, CA, USA.,Department of Structural Biology, School of Medicine, Stanford University, CA, USA.,Structural Biology Research Center, Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan.,Departement of Biophysics, Faculty of Science, Cairo University, Giza, Egypt.,Institute of Biochemistry II, Goethe University School of Medicine, Frankfurt (Main), Germany.,Graduate University for Advanced Studies, Hayama, Kanagawa, Japan.,Photon Science, SLAC National Accelerator Laboratory, Menlo Park, CA, USA.