RCSB PDB - 3WXF: Crystal structure of CYLD USP domain (C596S E674Q) in complex with Met1-linked diubiquitin (original) (raw)
Structures of CYLD USP with Met1- or Lys63-linked diubiquitin reveal mechanisms for dual specificity.
[Sato, Y.](/search?q=citation.rcsb%5Fauthors:Sato, Y.), [Goto, E.](/search?q=citation.rcsb%5Fauthors:Goto, E.), [Shibata, Y.](/search?q=citation.rcsb%5Fauthors:Shibata, Y.), [Kubota, Y.](/search?q=citation.rcsb%5Fauthors:Kubota, Y.), [Yamagata, A.](/search?q=citation.rcsb%5Fauthors:Yamagata, A.), [Goto-Ito, S.](/search?q=citation.rcsb%5Fauthors:Goto-Ito, S.), [Kubota, K.](/search?q=citation.rcsb%5Fauthors:Kubota, K.), [Inoue, J.](/search?q=citation.rcsb%5Fauthors:Inoue, J.), [Takekawa, M.](/search?q=citation.rcsb%5Fauthors:Takekawa, M.), [Tokunaga, F.](/search?q=citation.rcsb%5Fauthors:Tokunaga, F.), [Fukai, S.](/search?q=citation.rcsb%5Fauthors:Fukai, S.)
(2015) Nat Struct Mol Biol 22: 222-229
PubMed: 25686088 Search on PubMed
PubMed Abstract:
The tumor suppressor CYLD belongs to a ubiquitin (Ub)-specific protease (USP) family and specifically cleaves Met1- and Lys63-linked polyubiquitin chains to suppress inflammatory signaling pathways. Here, we report crystal structures representing the catalytic states of zebrafish CYLD for Met1- and Lys63-linked Ub chains and two distinct precatalytic states for Met1-linked chains. In both catalytic states, the distal Ub is bound to CYLD in a similar manner, and the scissile bond is located close to the catalytic residue, whereas the proximal Ub is bound in a manner specific to Met1- or Lys63-linked chains. Further structure-based mutagenesis experiments support the mechanism by which CYLD specifically cleaves both Met1- and Lys63-linked chains and provide insight into tumor-associated mutations of CYLD. This study provides new structural insight into the mechanisms by which USP family deubiquitinating enzymes recognize and cleave Ub chains with specific linkage types.
Organizational Affiliation:
1] Life Science Division, Synchrotron Radiation Research Organization, University of Tokyo, Tokyo, Japan. [2] Center for Structural Biology of Challenging Proteins, Institute of Molecular and Cellular Biosciences, University of Tokyo, Tokyo, Japan. [3] Department of Medical Genome Sciences, Graduate School of Frontier Sciences, University of Tokyo, Chiba, Japan.