2DOS

Structural basis for the recognition of Lys48-linked polyubiquitin chain by the Josephin domain of ataxin-3, a putative deubiquitinating enzyme


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 1.4 of the entry. See complete history

Literature

Mode of substrate recognition by the Josephin domain of ataxin-3, which has an endo-type deubiquitinase activity.

Satoh, T.Sumiyoshi, A.Yagi-Utsumi, M.Sakata, E.Sasakawa, H.Kurimoto, E.Yamaguchi, Y.Li, W.Joazeiro, C.A.Hirokawa, T.Kato, K.

(2014) Febs Lett. 588: 4422-4430

  • DOI: 10.1016/j.febslet.2014.10.013

  • PubMed Abstract: 
  • Ataxin-3, which is encoded by a gene that has been associated with Machado-Joseph disease, contains a catalytic N-terminal Josephin domain with deubiquitinase activity. Here, we show that the Josephin domain of ataxin 3 catalyzes endo-type cleavage o ...

    Ataxin-3, which is encoded by a gene that has been associated with Machado-Joseph disease, contains a catalytic N-terminal Josephin domain with deubiquitinase activity. Here, we show that the Josephin domain of ataxin 3 catalyzes endo-type cleavage of Lys48-linked polyubiquitin. Furthermore, NMR data obtained following site-specific paramagnetic spin labeling of Lys48-linked di-ubiquitin revealed that both ubiquitin units interact with the Josephin domain, with the C-terminal Gly76 of the proximal unit being situated in the vicinity of the catalytic triad of Josephin domain. Our results help to elucidate how the substrate is recognized by the Josephin domain and properly positioned for an endo-type deubiquitination reaction.


    Organizational Affiliation

    Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan; JST, PRESTO, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ataxin-3
A
176Homo sapiensGene 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: 2DOS Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2006-05-03 
  • Released Date: 2007-05-22 
  • Deposition Author(s): Sumiyoshi, A.

Revision History 

  • Version 1.0: 2007-05-22
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2014-12-03
    Type: Database references
  • Version 1.4: 2014-12-31
    Type: Database references