ArticleProceedings of the National Academy of Sciences of the United States of America2025
Functional spectrum of USP7 pathogenic variants in Hao-Fountain syndrome: Insights into the enzyme's activity, stability, and allosteric modulation.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- The Hao-Fountain syndrome gene USP7 restricts neurotropic orthoflavivirus entry through cell-intrinsic control of endosomal dynamics.bioRxiv : the preprint server for biology · 2026Article
- Proteome-wide Ubiquitinome Profiling Reveals Substrate-specific Dynamics Within the USP7 Network.Molecular & cellular proteomics : MCP · 2026Article
- Structural insights into ubiquitin recognition by USP15 revealed through a covalent activity-based probe.Communications biology · 2026Article
- Systematic discovery of motif-based interactions of the auxiliary domains of USP family deubiquitinases.Nature communications · 2026Article
- Small-molecule allosteric activator of ubiquitin-specific protease 7 (USP7).Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- USP7 at the Crossroads of Ubiquitin Signaling, Cell Cycle, and Tumorigenesis.Molecules (Basel, Switzerland) · 2025Review
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11 authors.
Funding
Abstract
Hao-Fountain syndrome is a rare neurodevelopmental disorder caused by mutations in the deubiquitinating enzyme Ubiquitin-Specific Protease 7 (USP7). Due to the novelty of the disease and its poorly understood molecular mechanisms, treatments for the syndrome are currently lacking. This study examines the effects of 11 patient-derived variants located within the catalytic domain of USP7, focusing on their impact on the enzyme's activity, thermodynamic stability, and substrate recognition. Our findings reveal a spectrum of functional consequences, ranging from complete inactivation to hyperactivation of USP7. Notably, we identify a specific subset of pathogenic variants whose catalytic activity can be significantly boosted using an allosteric activator, MS-8. These results provide insight into USP7 malfunction in Hao-Fountain syndrome-linked variants and pave the way for improved prognostic approaches and targeted treatments in the future.
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