2VB3

Crystal structure of Ag(I)CusF


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.33 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.241 

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:  

  • 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 t ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CATION EFFLUX SYSTEM PROTEIN CUSF
X
88Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: cusF (cusX, ylcC)
Find proteins for P77214 (Escherichia coli (strain K12))
Go to UniProtKB:  P77214
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
AG
Query on AG

Download SDF File 
Download CCD File 
X
SILVER ION
Ag
FOIXSVOLVBLSDH-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.33 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.241 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 39.658α = 90.00
b = 44.229β = 90.00
c = 44.241γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
REFMACrefinement
SCALAdata scaling
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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