RCSB PDB - 5C7M: CRYSTAL STRUCTURE OF E3 LIGASE ITCH WITH A UB VARIANT (original) (raw)
System-Wide Modulation of HECT E3 Ligases with Selective Ubiquitin Variant Probes.
[Zhang, W.](/search?q=citation.rcsb%5Fauthors:Zhang, W.), [Wu, K.P.](/search?q=citation.rcsb%5Fauthors:Wu, K.P.), [Sartori, M.A.](/search?q=citation.rcsb%5Fauthors:Sartori, M.A.), [Kamadurai, H.B.](/search?q=citation.rcsb%5Fauthors:Kamadurai, H.B.), [Ordureau, A.](/search?q=citation.rcsb%5Fauthors:Ordureau, A.), [Jiang, C.](/search?q=citation.rcsb%5Fauthors:Jiang, C.), [Mercredi, P.Y.](/search?q=citation.rcsb%5Fauthors:Mercredi, P.Y.), [Murchie, R.](/search?q=citation.rcsb%5Fauthors:Murchie, R.), [Hu, J.](/search?q=citation.rcsb%5Fauthors:Hu, J.), [Persaud, A.](/search?q=citation.rcsb%5Fauthors:Persaud, A.), [Mukherjee, M.](/search?q=citation.rcsb%5Fauthors:Mukherjee, M.), [Li, N.](/search?q=citation.rcsb%5Fauthors:Li, N.), [Doye, A.](/search?q=citation.rcsb%5Fauthors:Doye, A.), [Walker, J.R.](/search?q=citation.rcsb%5Fauthors:Walker, J.R.), [Sheng, Y.](/search?q=citation.rcsb%5Fauthors:Sheng, Y.), [Hao, Z.](/search?q=citation.rcsb%5Fauthors:Hao, Z.), [Li, Y.](/search?q=citation.rcsb%5Fauthors:Li, Y.), [Brown, K.R.](/search?q=citation.rcsb%5Fauthors:Brown, K.R.), [Lemichez, E.](/search?q=citation.rcsb%5Fauthors:Lemichez, E.), [Chen, J.](/search?q=citation.rcsb%5Fauthors:Chen, J.), [Tong, Y.](/search?q=citation.rcsb%5Fauthors:Tong, Y.), [Harper, J.W.](/search?q=citation.rcsb%5Fauthors:Harper, J.W.), [Moffat, J.](/search?q=citation.rcsb%5Fauthors:Moffat, J.), [Rotin, D.](/search?q=citation.rcsb%5Fauthors:Rotin, D.), [Schulman, B.A.](/search?q=citation.rcsb%5Fauthors:Schulman, B.A.), [Sidhu, S.S.](/search?q=citation.rcsb%5Fauthors:Sidhu, S.S.)
(2016) Mol Cell 62: 121-136
PubMed Abstract:
HECT-family E3 ligases ubiquitinate protein substrates to control virtually every eukaryotic process and are misregulated in numerous diseases. Nonetheless, understanding of HECT E3s is limited by a paucity of selective and potent modulators. To overcome this challenge, we systematically developed ubiquitin variants (UbVs) that inhibit or activate HECT E3s. Structural analysis of 6 HECT-UbV complexes revealed UbV inhibitors hijacking the E2-binding site and activators occupying a ubiquitin-binding exosite. Furthermore, UbVs unearthed distinct regulation mechanisms among NEDD4 subfamily HECTs and proved useful for modulating therapeutically relevant targets of HECT E3s in cells and intestinal organoids, and in a genetic screen that identified a role for NEDD4L in regulating cell migration. Our work demonstrates versatility of UbVs for modulating activity across an E3 family, defines mechanisms and provides a toolkit for probing functions of HECT E3s, and establishes a general strategy for systematic development of modulators targeting families of signaling proteins.
Organizational Affiliation:
Donnelly Centre for Cellular and Biomolecular Research, Banting and Best Department of Medical Research, University of Toronto, 160 College Street, Toronto, ON M5S3E1, Canada.