1MKZ

Crystal structure of MoaB protein at 1.6 A resolution.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.183 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

The crystal structure of Escherichia coli MoaB suggests a probable role in molybdenum cofactor synthesis.

Sanishvili, R.Beasley, S.Skarina, T.Glesne, D.Joachimiak, A.Edwards, A.Savchenko, A.

(2004) J.Biol.Chem. 279: 42139-42146

  • DOI: 10.1074/jbc.M407694200

  • PubMed Abstract: 
  • The crystal structure of Escherichia coli MoaB was determined by multiwavelength anomalous diffraction phasing and refined at 1.6-A resolution. The molecule displayed a modified Rossman fold. MoaB is assembled into a hexamer composed of two trimers. ...

    The crystal structure of Escherichia coli MoaB was determined by multiwavelength anomalous diffraction phasing and refined at 1.6-A resolution. The molecule displayed a modified Rossman fold. MoaB is assembled into a hexamer composed of two trimers. The monomers have high structural similarity with two proteins, MogA and MoeA, from the molybdenum cofactor synthesis pathway in E. coli, as well as with domains of mammalian gephyrin and plant Cnx1, which are also involved in molybdopterin synthesis. Structural comparison between these proteins and the amino acid conservation patterns revealed a putative active site in MoaB. The structural analysis of this site allowed to advance several hypothesis that can be tested in further studies.


    Organizational Affiliation

    Biosciences, Structural Biology Center, Midwest Center for Sructural Genomics, Argonne National Laboratory, Argonne, Illinois 60439, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Molybdenum cofactor biosynthesis protein B
A, B
172Escherichia coli (strain K12)Gene Names: moaB (chlA2)
Find proteins for P0AEZ9 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AEZ9
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
ACY
Query on ACY

Download SDF File 
Download CCD File 
A, B
ACETIC ACID
C2 H4 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.183 
  • Space Group: P 3 2 1
Unit Cell:
Length (Å)Angle (°)
a = 69.169α = 90.00
b = 69.169β = 90.00
c = 126.184γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
d*TREKdata reduction
HKL-2000data scaling
WARPmodel building
d*TREKdata scaling
CNSphasing
CNSrefinement
ARP/wARPmodel building
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-04-22
    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