2VB2

Crystal structure of Cu(I)CusF


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.238 
  • R-Value Observed: 0.239 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Cu(I) Recognition Via Cation-Pi and Methionine Interactions in Cusf.

Xue, Y.Davis, A.V.Balakrishnan, G.Stasser, J.P.Staehlin, B.M.Focia, P.Spiro, T.G.Penner-Hahn, J.E.O'Halloran, T.V.

(2008) Nat Chem Biol 4: 107

  • DOI: 10.1038/nchembio.2007.57
  • Primary Citation of Related Structures:  
    2VB2, 2VB3

  • PubMed Abstract: 
  • Methionine-rich motifs have an important role in copper trafficking factors, including the CusF protein. Here we show that CusF uses a new metal recognition site wherein Cu(I) is tetragonally displaced from a Met2His ligand plane toward a conserved tryptophan ...

    Methionine-rich motifs have an important role in copper trafficking factors, including the CusF protein. Here we show that CusF uses a new metal recognition site wherein Cu(I) is tetragonally displaced from a Met2His ligand plane toward a conserved tryptophan. Spectroscopic studies demonstrate that both thioether ligation and strong cation-pi interactions with tryptophan stabilize metal binding. This novel active site chemistry affords mechanisms for control of adventitious metal redox and substitution chemistry.


    Organizational Affiliation

    Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CATION EFFLUX SYSTEM PROTEIN CUSFA [auth X]88Escherichia coli BL21(DE3)Mutation(s): 0 
UniProt
Find proteins for P77214 (Escherichia coli (strain K12))
Explore P77214 
Go to UniProtKB:  P77214
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download Ideal Coordinates CCD File 
B [auth X]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
CU
Query on CU

Download Ideal Coordinates CCD File 
C [auth X]COPPER (II) ION
Cu
JPVYNHNXODAKFH-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.238 
  • R-Value Observed: 0.239 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 38.468α = 90
b = 41.264β = 90
c = 44.573γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2007-12-18
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance