1P98

High-resolution NMR structure of the Ubl-domain of HHR23A


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 120 
  • Conformers Submitted: 11 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural determinants for the binding of ubiquitin-like domains to the proteasome.

Mueller, T.D.Feigon, J.

(2003) Embo J. 22: 4634-4645

  • DOI: 10.1093/emboj/cdg467
  • Primary Citation of Related Structures:  1P9C, 1P9D
  • Also Cited By: 2WYQ

  • PubMed Abstract: 
  • HHR23A, a protein implicated in nucleotide excision repair, belongs to a class of proteins containing both a ubiquitin-like (Ubl) domain and one or more ubiquitin-associated (UBA) domains, suggesting a role in the ubiquitin-proteasome pathway as well ...

    HHR23A, a protein implicated in nucleotide excision repair, belongs to a class of proteins containing both a ubiquitin-like (Ubl) domain and one or more ubiquitin-associated (UBA) domains, suggesting a role in the ubiquitin-proteasome pathway as well. The Ubl domain binds with high affinity to the second ubiquitin-interacting motif (UIM) of the S5a subunit of the proteasome. Here we present the solution structures of the HHR23A Ubl domain, the second UIM of S5a (UIM-2), and the Ubl:S5a-UIM-2 complex. The HHR23A Ubl domain is structurally similar to ubiquitin. The S5a UIM forms an alpha-helix with an unexpected hairpin loop that contributes to the binding interface with Ubl. The molecular determinants of the Ubl-proteasome interaction are revealed by analysis of the structures, chemical shift mapping, mutant binding studies and sequence conservation.


    Related Citations: 
    • Solution Structures of UBA Domains Reveal a Conserved Hydrophobic Surface for Protein-Protein Interactions
      Mueller, T.D.,Feigon, J.
      (2002) J.Mol.Biol. 319: 1243


    Organizational Affiliation

    Department of Chemistry and Biochemistry, 405 Hilgard Avenue, PO Box 951569, University of California, Los Angeles, CA 90095-1569, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
UV excision repair protein RAD23 homolog A
A
78Homo sapiensGene Names: RAD23A
Find proteins for P54725 (Homo sapiens)
Go to Gene View: RAD23A
Go to UniProtKB:  P54725
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 120 
  • Conformers Submitted: 11 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 1P98 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-10-07
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance