3NXZ

Crystal Structure of UreE from Helicobacter pylori (Cu2+ bound form)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.294 
  • R-Value Work: 0.256 
  • R-Value Observed: 0.258 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Crystal Structures of Apo and Metal-Bound Forms of the UreE Protein from Helicobacter pylori: Role of Multiple Metal Binding Sites

Shi, R.Munger, C.Asinas, A.Benoit, S.L.Miller, E.Matte, A.Maier, R.J.Cygler, M.

(2010) Biochemistry 49: 7080-7088

  • DOI: https://doi.org/10.1021/bi100372h
  • Primary Citation of Related Structures:  
    3L9Z, 3LA0, 3NXZ, 3NY0

  • PubMed Abstract: 

    The crystal structure of the urease maturation protein UreE from Helicobacter pylori has been determined in its apo form at 2.1 A resolution, bound to Cu(2+) at 2.7 A resolution, and bound to Ni(2+) at 3.1 A resolution. Apo UreE forms dimers, while the metal-bound enzymes are arranged as tetramers that consist of a dimer of dimers associated around the metal ion through coordination by His102 residues from each subunit of the tetramer. Comparison of independent subunits from different crystal forms indicates changes in the relative arrangement of the N- and C-terminal domains in response to metal binding. The improved ability of engineered versions of UreE containing hexahistidine sequences at either the N-terminal or C-terminal end to provide Ni(2+) for the final metal sink (urease) is eliminated in the H102A version. Therefore, the ability of the improved Ni(2+)-binding versions to deliver more nickel is likely an effect of an increased local concentration of metal ions that can rapidly replenish transferred ions bound to His102.


  • Organizational Affiliation

    Department of Biochemistry, McGill University, Montreal, Quebec, Canada H3G 1Y6.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Urease accessory protein ureE
A, B, C, D
170Helicobacter pyloriMutation(s): 0 
Gene Names: HP_0070ureE
UniProt
Find proteins for Q09064 (Helicobacter pylori (strain ATCC 700392 / 26695))
Explore Q09064 
Go to UniProtKB:  Q09064
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ09064
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
CU
Query on CU

Download Ideal Coordinates CCD File 
E [auth A]COPPER (II) ION
Cu
JPVYNHNXODAKFH-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.294 
  • R-Value Work: 0.256 
  • R-Value Observed: 0.258 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 88.829α = 90
b = 88.829β = 90
c = 203.635γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-08-25
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-11-08
    Changes: Refinement description
  • Version 1.3: 2023-09-06
    Changes: Data collection, Database references, Derived calculations, Refinement description