Cited by 316Ubiquitin and proteasome pathwaysCancer-related Molecular PathwaysProtein Structure and Dynamics

Molecular recognition of p53 and MDM2 by USP7/HAUSP.

Sheng, Yi, Saridakis, Vivian, Sarkari, Feroz, Duan, Shili, Wu, Tianne, Arrowsmith, Cheryl H, Frappier, Lori·2006·Nature Structural & Molecular Biology

Abstract

The ubiquitin-specific protease, USP7, has key roles in the p53 pathway whereby it stabilizes both p53 and MDM2. We show that the N-terminal domain of USP7 binds two closely spaced 4-residue sites in both p53 and MDM2, falling between p53 residues 359-367 and MDM2 residues 147-159. Cocrystal structures with USP7 were determined for both p53 peptides and for one MDM2 peptide. These peptides bind the same surface of USP7 as Epstein-Barr nuclear antigen-1, explaining the competitive nature of the interactions. The structures and mutagenesis data indicate a preference for a P/AXXS motif in peptides that bind USP7. Contacts made by serine are identical and crucial for all peptides, and Trp165 in the peptide-binding pocket of USP7 is also crucial. These results help to elucidate the mechanism of substrate recognition by USP7 and the regulation of the p53 pathway.

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Crossref · 10.1038/nsmb1067

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  • USP7 TRAF-like domain residues D164 and W165 form essential contacts with P/A/ExxS motifs shared by all TRAF-like domain-binding substrates.

    “The TRAF-like domain assumes an eight stranded antiparallel β- sandwich fold, with residues D164 and W165 forming essential contacts with P/A/ExxS motifs shared by all TRAF-like domain-binding substrates.”

    From USP7 Is a Master Regulator of Genome Stability (2020) · cites this paper as Sheng et al., 2006

  • Mdm2 binds the USP7 TRAF-like domain with higher affinity than p53 because Mdm2 makes more extensive contacts.

    “An obstacle to this switch is that while USP7 binds both Mdm2 and p53 via its TRAF-like domain, Mdm2 makes more extensive contacts and thus binds the TRAF-like domain with a higher affinity (Hu et al., 2006; Sheng et al., 2006).”

    From USP7 Is a Master Regulator of Genome Stability (2020) · cites this paper as Sheng et al., 2006

  • USP7 has a central role in stabilizing p53 protein levels in response to genomic stress.

    “As discussed in previous sections, USP7 has a central role in stabilizing p53 protein levels in response to genomic stress (Sheng et al., 2006).”

    From USP7 Is a Master Regulator of Genome Stability (2020) · cites this paper as Sheng et al., 2006

  • Mdm2 seems to be a better binding partner of HAUSP than p53.

    “Mdm2 seems to be a better binding partner of HAUSP than p53”

    From USP10 Regulates p53 Localization and Stability by Deubiquitinating p53 (2010) · cites this paper as Sheng et al., 2006

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Authors
Sheng, Y., Saridakis, V., Sarkari, F., Duan, S., Wu, T., Arrowsmith, C. H., & Frappier, L.
Affiliations
University of Toronto (CA)
Corresponding author
Frappier, Lori
Venue
Nature Structural & Molecular Biology
Published
2006-02-12
Volume
13
Issue
3
Pages
285-291
ISSN
  • 1545-9985 (ISSN-L)
  • 1545-9993
OpenAlex
W2032610349
Cited by
315
References
19
Citations by year
2026: 19 · 2025: 24 · 2024: 16 · 2023: 20 · 2022: 21 · 2021: 19 · 2020: 22 · 2019: 25 · 2018: 14 · 2017: 11 · 2016: 16 · 2015: 22 · 2014: 10 · 2013: 13 · 2012: 10
FWCI
4.62
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Structural & Molecular Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Terry Fox Foundation
  • Natural Sciences and Engineering Research Council of Canada
  • National Cancer Institute
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
Keywords
USP7, p53, MDM2, ubiquitin-specific protease, protein-protein interaction, substrate recognition, peptide binding, co-crystal structure, p53 stabilization, serine residues
MeSH terms
Ubiquitin-Specific Peptidase 7, Amino Acid Sequence, Binding Sites, Humans, Models, Molecular, Molecular Sequence Data, Mutation, Endopeptidases, Peptides, Protein Binding, Protein Conformation, Tumor Suppressor Protein p53, Protein Structure, Tertiary, Crystallography, X-Ray, Amino Acid Motifs, Protein Interaction Mapping, Ubiquitin Thiolesterase, Proto-Oncogene Proteins c-mdm2

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