1NAQ

Crystal structure of CUTA1 from E.coli at 1.7 A resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.203 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

The evolutionarily conserved trimeric structure of CutA1 proteins suggests a role in signal transduction.

Arnesano, F.Banci, L.Benvenuti, M.Bertini, I.Calderone, V.Mangani, S.Viezzoli, M.S.

(2003) J.Biol.Chem. 278: 45999-46006

  • DOI: 10.1074/jbc.M304398200
  • Primary Citation of Related Structures:  1OSC

  • PubMed Abstract: 
  • CutA1 are a protein family present in bacteria, plants, and animals, including humans. Escherichia coli CutA1 is involved in copper tolerance, whereas mammalian proteins are implicated in the anchoring of acetylcholinesterase in neuronal cell membran ...

    CutA1 are a protein family present in bacteria, plants, and animals, including humans. Escherichia coli CutA1 is involved in copper tolerance, whereas mammalian proteins are implicated in the anchoring of acetylcholinesterase in neuronal cell membranes. The x-ray structures of CutA1 from E. coli and rat were determined. Both proteins are trimeric in the crystals and in solution through an inter-subunit beta-sheet formation. Each subunit consists of a ferredoxin-like (beta1alpha1beta2beta3alpha2beta4) fold with an additional strand (beta5), a C-terminal helix (alpha3), and an unusual extended beta-hairpin involving strands beta2 and beta3. The bacterial CutA1 is able to bind copper(II) in vitro through His2Cys coordination in a type II water-accessible site, whereas the rat protein precipitates in the presence of copper(II). The evolutionarily conserved trimeric assembly of CutA1 is reminiscent of the architecture of PII signal transduction proteins. This similarity suggests an intriguing role of CutA1 proteins in signal transduction through allosteric communications between subunits.


    Related Citations: 
    • STRUCTURE OF PROTEIN TM1056, CUTA
      SAVCHENKO, A.,ZHANG, R.,JOACHIMIAK, A.,EDWARDS, A.,AKARINA, T.
      () TO BE PUBLISHED --: --


    Organizational Affiliation

    Magnetic Resonance Center (CERM) and Department of Chemistry, University of Florence, Via Luigi Sacconi 6, 50019, Sesto Fiorentino, Florence, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Periplasmic divalent cation tolerance protein cutA
A, B, C, D, E, F
112Escherichia coli (strain K12)Gene Names: cutA (cutA1, cycY)
Find proteins for P69488 (Escherichia coli (strain K12))
Go to UniProtKB:  P69488
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MBO
Query on MBO

Download SDF File 
Download CCD File 
A, B, C, D, E, F
MERCURIBENZOIC ACID
C7 H5 Hg O2
FVFZSVRSDNUCGG-UHFFFAOYSA-N
 Ligand Interaction
HG
Query on HG

Download SDF File 
Download CCD File 
A, B, C, D, E, F
MERCURY (II) ION
Hg
BQPIGGFYSBELGY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.203 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 55.989α = 90.00
b = 89.563β = 90.00
c = 122.294γ = 90.00
Software Package:
Software NamePurpose
RESOLVEphasing
REFMACrefinement
MOSFLMdata reduction
CCP4data scaling
RESOLVEmodel building
SCALAdata scaling
SOLVEphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-11-25
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-11
    Type: Refinement description