1YZB

Solution structure of the Josephin domain of Ataxin-3


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • 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

The solution structure of the Josephin domain of ataxin-3: Structural determinants for molecular recognition

Nicastro, G.Menon, R.P.Masino, L.Knowles, P.P.McDonald, N.Q.Pastore, A.

(2005) Proc.Natl.Acad.Sci.Usa 102: 10493-10498

  • DOI: 10.1073/pnas.0501732102
  • Also Cited By: 2JRI

  • PubMed Abstract: 
  • The Josephin domain plays an important role in the cellular functions of ataxin-3, the protein responsible for the neurodegenerative Machado-Joseph disease. We have determined the solution structure of Josephin and shown that it belongs to the family ...

    The Josephin domain plays an important role in the cellular functions of ataxin-3, the protein responsible for the neurodegenerative Machado-Joseph disease. We have determined the solution structure of Josephin and shown that it belongs to the family of papain-like cysteine proteases, sharing the highest degree of structural similarity with bacterial staphopain. A currently unique structural feature of Josephin is a flexible helical hairpin formed by a 32-residue insertion, which could determine substrate specificity. By using the Josephin structure and the availability of NMR chemical shift assignments, we have mapped the enzyme active site by using the typical cysteine protease inhibitors, transepoxysuccinyl-L-eucylamido-4-guanidino-butane (E-64) and [L-3-trans-(propylcarbamyl)oxirane-2-carbonyl]-L-isoleucyl-L-proline (CA-074). We also demonstrate that the specific interaction of Josephin with the ubiquitin-like domain of the ubiquitin- and proteasome-binding factor HHR23B involves complementary exposed hydrophobic surfaces. The structural similarity with other deubiquitinating enzymes suggests a model for the proteolytic enzymatic activity of ataxin-3.


    Related Citations: 
    • Domain architecture of the polyglutamine protein ataxin-3: a globular domain followed by a flexible tail
      Masino, L.,Musi, V.,Menon, R.P.,Fusi, P.,Kelly, G.,Frenkiel, T.A.,Trottier, Y.,Pastore, A.
      (2003) Febs Lett. 549: 21
    • Assignment of the 1H, 13C, and 15N resonances of the Josephin domain of human ataxin-3
      Nicastro, G.,Masino, L.,Frenkiel, T.A.,Kelly, G.,McCormick, J.,Menon, R.P.,Pastore, A.
      (2004) J.Biomol.Nmr 30: 457
    • Characterization of the structure and the amyloidogenic properties of the Josephin domain of the polyglutamine-containing protein ataxin-3
      Masino, L.,Nicastro, G.,Menon, R.P.,Dal Piaz, F.,Calder, L.,Pastore, A.
      (2004) J.Mol.Biol. 344: 1021


    Organizational Affiliation

    National Institute for Medical Research, The Ridgeway, London NW7 1AA, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Machado-Joseph disease protein 1
A
182Homo sapiensMutation(s): 0 
Gene Names: ATXN3 (ATX3, MJD, MJD1, SCA3)
EC: 3.4.19.12
Find proteins for P54252 (Homo sapiens)
Go to Gene View: ATXN3
Go to UniProtKB:  P54252
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 1YZB Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-07-05
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance