4BZ4

CorA is a surface-associated copper-binding protein important in Methylomicrobium album BG8 copper acquisition


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.158 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Cora is a Copper Repressible Surface-Associated Copper(I)-Binding Protein Produced in Methylomicrobium Album Bg8.

Johnson, K.A.Ve, T.Larsen, O.Pedersen, R.B.Lillehaug, J.R.Jensen, H.B.Helland, R.Karlsen, O.A.

(2014) Plos One 9: 87750

  • DOI: 10.1371/journal.pone.0087750

  • PubMed Abstract: 
  • CorA is a copper repressible protein previously identified in the methanotrophic bacterium Methylomicrobium album BG8. In this work, we demonstrate that CorA is located on the cell surface and binds one copper ion per protein molecule, which, based o ...

    CorA is a copper repressible protein previously identified in the methanotrophic bacterium Methylomicrobium album BG8. In this work, we demonstrate that CorA is located on the cell surface and binds one copper ion per protein molecule, which, based on X-ray Absorption Near Edge Structure analysis, is in the reduced state (Cu(I)). The structure of endogenously expressed CorA was solved using X-ray crystallography. The 1.6 Å three-dimensional structure confirmed the binding of copper and revealed that the copper atom was coordinated in a mononuclear binding site defined by two histidines, one water molecule, and the tryptophan metabolite, kynurenine. This arrangement of the copper-binding site is similar to that of its homologous protein MopE* from Metylococcus capsulatus Bath, confirming the importance of kynurenine for copper binding in these proteins. Our findings show that CorA has an overall fold similar to MopE, including the unique copper(I)-binding site and most of the secondary structure elements. We suggest that CorA plays a role in the M. album BG8 copper acquisition.


    Organizational Affiliation

    Norwegian Structural Biology Centre, Faculty of Science, University of Tromsø, Tromsø, Norway.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
COPPER-REPRESSIBLE POLYPEPTIDE
A, B, C, D, E, F
231Methylomicrobium album BG8Mutation(s): 0 
Find proteins for H8GPE3 (Methylomicrobium album BG8)
Go to UniProtKB:  H8GPE3
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CU1
Query on CU1

Download SDF File 
Download CCD File 
A, B, C, D, E, F
COPPER (I) ION
Cu
VMQMZMRVKUZKQL-UHFFFAOYSA-N
 Ligand Interaction
CA
Query on CA

Download SDF File 
Download CCD File 
A, B, C, D, E, F
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
PG4
Query on PG4

Download SDF File 
Download CCD File 
A, B, C, D, E, F
TETRAETHYLENE GLYCOL
C8 H18 O5
UWHCKJMYHZGTIT-UHFFFAOYSA-N
 Ligand Interaction
P6G
Query on P6G

Download SDF File 
Download CCD File 
A, B, C, D, E, F
HEXAETHYLENE GLYCOL
POLYETHYLENE GLYCOL PEG400
C12 H26 O7
IIRDTKBZINWQAW-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
KYN
Query on KYN
A, B, C, D, E, F
L-PEPTIDE LINKINGC10 H12 N2 O3TRP
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.158 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 73.840α = 90.00
b = 113.170β = 104.51
c = 81.490γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
SOLVEphasing
REFMACrefinement
RESOLVEphasing
MOLREPphasing
XDSdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-02-19
    Type: Initial release