4KLN

Structure of p97 N-D1 A232E mutant in complex with ATPgS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.62 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.274 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Altered Intersubunit Communication Is the Molecular Basis for Functional Defects of Pathogenic p97 Mutants.

Tang, W.K.Xia, D.

(2013) J.Biol.Chem. 288: 36624-36635

  • DOI: 10.1074/jbc.M113.488924
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The human AAA ATPase p97 is a molecular chaperone essential in cellular proteostasis. Single amino acid substitutions in p97 have been linked to a clinical multiple-disorder condition known as inclusion body myopathy associated with Paget's disease o ...

    The human AAA ATPase p97 is a molecular chaperone essential in cellular proteostasis. Single amino acid substitutions in p97 have been linked to a clinical multiple-disorder condition known as inclusion body myopathy associated with Paget's disease of the bone and frontotemporal dementia. How the mutations affect the molecular mechanism that governs the function of p97 remains unclear. Here, we show that within the hexameric ring of a mutant p97, D1 domains fail to regulate their respective nucleotide-binding states, as evidenced by the lower amount of prebound ADP, weaker ADP binding affinity, full occupancy of adenosine-5'-O-(3-thiotriphosphate) binding, and elevated overall ATPase activity, indicating a loss of communication among subunits. Defective communication between subunits is further illustrated by altered conformation in the side chain of residue Phe-360 that probes into the nucleotide-binding pocket from a neighboring subunit. Consequently, conformations of N domains in a hexameric ring of a mutant p97 become uncoordinated, thus impacting its ability to process substrate.


    Organizational Affiliation

    From the Laboratory of Cell Biology, Center for Cancer Research, NCI, National Institutes of Health, Bethesda, Maryland 20892.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Transitional endoplasmic reticulum ATPase
A, B, C, D, E, F
489Homo sapiensMutation(s): 1 
Gene Names: VCP
EC: 3.6.4.6
Find proteins for P55072 (Homo sapiens)
Go to Gene View: VCP
Go to UniProtKB:  P55072
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download SDF File 
Download CCD File 
A, B, C, D, E, F
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
AGS
Query on AGS

Download SDF File 
Download CCD File 
A, B, C, D, E, F
PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER
ATP-GAMMA-S; ADENOSINE 5'-(3-THIOTRIPHOSPHATE); ADENOSINE 5'-(GAMMA-THIOTRIPHOSPHATE); ADENOSINE-5'-DIPHOSPHATE MONOTHIOPHOSPHATE
C10 H16 N5 O12 P3 S
NLTUCYMLOPLUHL-KQYNXXCUSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
AGSKd: 20 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.62 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.274 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 91.147α = 98.11
b = 104.514β = 90.55
c = 109.528γ = 92.72
Software Package:
Software NamePurpose
SCALEPACKdata scaling
HKL-2000data collection
MOLREPphasing
REFMACrefinement
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2013-05-07 
  • Released Date: 2013-11-13 
  • Deposition Author(s): Xia, D., Tang, W.K.

Revision History 

  • Version 1.0: 2013-11-13
    Type: Initial release
  • Version 1.1: 2014-01-08
    Type: Database references