Common mode of remodeling AAA ATPases p97/CDC48 by their disassembly cofactors ASPL/PUX1

Experimental Data Snapshot

  • Resolution: 2.80 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.221 

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Common Mode of Remodeling AAA ATPases p97/CDC48 by Their Disassembling Cofactors ASPL/PUX1.

Banchenko, S.Arumughan, A.Petrovic, S.Schwefel, D.Wanker, E.E.Roske, Y.Heinemann, U.

(2019) Structure 27: 1830

  • DOI: https://doi.org/10.1016/j.str.2019.10.001
  • Primary Citation of Related Structures:  
    6HD0, 6HD3

  • PubMed Abstract: 

    The hexameric ring structure of the type II AAA+ ATPases is considered as stable and permanent. Recently, the UBX domain-containing cofactors Arabidopsis thaliana PUX1 and human alveolar soft part sarcoma locus (ASPL) were reported to bind and disassemble the cognate AAA+ ATPases AtCDC48 and human p97. Here, we present two crystal structures related to these complexes: a truncated AtCDC48 (AtCDC48-ND1) and a hybrid complex containing human p97-ND1 and the UBX domain of plant PUX1 (p97-ND1:PUX1-UBX). These structures reveal close similarity between the human and plant AAA+ ATPases, but also highlight differences between disassembling and non-disassembling AAA+ ATPase cofactors. Based on an AtCDC48 disassembly assay with PUX1 and known crystal structures of the p97-bound human cofactor ASPL, we propose a general ATPase disassembly model. Thus, our structural and biophysical investigations provide detailed insight into the mechanism of AAA+ ATPase disassembly by UBX domain cofactors and suggest a general mode of regulating the cellular activity of these molecular machines.

  • Organizational Affiliation

    Max-Delbrück-Centrum für Molekulare Medizin, 13125 Berlin, Germany; Institut für Chemie und Biochemie, Freie Universität Berlin, 14195 Berlin, Germany.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Cell division control protein 48 homolog AA,
B [auth C]
481Arabidopsis thalianaMutation(s): 0 
Gene Names: CDC48ACDC48At3g09840F8A24.11
Find proteins for P54609 (Arabidopsis thaliana)
Explore P54609 
Go to UniProtKB:  P54609
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP54609
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.80 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.221 
  • Space Group: P 6 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 146.266α = 90
b = 146.266β = 90
c = 173.133γ = 120
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-08-28
    Type: Initial release
  • Version 1.1: 2019-11-06
    Changes: Data collection, Database references
  • Version 1.2: 2019-12-11
    Changes: Database references
  • Version 1.3: 2024-01-17
    Changes: Data collection, Database references, Refinement description