4F2F

Crystal structure of the metal binding domain (MBD) of the Streptococcus pneumoniae D39 Cu(I) exporting P-type ATPase CopA with Cu(I)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A new structural paradigm in copper resistance in Streptococcus pneumoniae.

Fu, Y.Tsui, H.C.Bruce, K.E.Sham, L.T.Higgins, K.A.Lisher, J.P.Kazmierczak, K.M.Maroney, M.J.Dann, C.E.Winkler, M.E.Giedroc, D.P.

(2013) Nat.Chem.Biol. 9: 177-183

  • DOI: 10.1038/nchembio.1168
  • Primary Citation of Related Structures:  4F2E

  • PubMed Abstract: 
  • Copper resistance has emerged as an important virulence determinant of microbial pathogens. In Streptococcus pneumoniae, copper resistance is mediated by the copper-responsive repressor CopY, CupA and the copper-effluxing P(1B)-type ATPase CopA. We s ...

    Copper resistance has emerged as an important virulence determinant of microbial pathogens. In Streptococcus pneumoniae, copper resistance is mediated by the copper-responsive repressor CopY, CupA and the copper-effluxing P(1B)-type ATPase CopA. We show here that CupA is a previously uncharacterized cell membrane-anchored Cu(I) chaperone and that a Cu(I) binding-competent, membrane-localized CupA is obligatory for copper resistance. The crystal structures of the soluble domain of CupA and the N-terminal metal-binding domain (MBD) of CopA (CopA(MBD)) reveal isostructural cupredoxin-like folds that each harbor a binuclear Cu(I) cluster unprecedented in bacterial copper trafficking. NMR studies reveal unidirectional Cu(I) transfer from the low-affinity site on the soluble domain of CupA to the high-affinity site of CopA(MBD). However, copper binding by CopA(MBD) is not essential for cellular copper resistance, consistent with a primary role of CupA in cytoplasmic Cu(I) sequestration and/or direct delivery to the transmembrane site of CopA for cellular efflux.


    Organizational Affiliation

    Department of Chemistry, Indiana University, Bloomington, Indiana, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cation-transporting ATPase, E1-E2 family protein
A
100Streptococcus pneumoniae serotype 2 (strain D39 / NCTC 7466)EC: 3.6.3.4
Find proteins for A0A0H2ZQ91 (Streptococcus pneumoniae serotype 2 (strain D39 / NCTC 7466))
Go to UniProtKB:  A0A0H2ZQ91
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
CU1
Query on CU1

Download SDF File 
Download CCD File 
A
COPPER (I) ION
Cu
VMQMZMRVKUZKQL-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.213 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 35.455α = 90.00
b = 37.329β = 90.00
c = 69.294γ = 90.00
Software Package:
Software NamePurpose
PHENIXphasing
PHENIXmodel building
HKL-2000data collection
HKL-2000data scaling
PHENIXrefinement
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-01-30
    Type: Initial release
  • Version 1.1: 2013-02-13
    Type: Database references
  • Version 1.2: 2013-03-06
    Type: Database references