3PDK

crystal structure of phosphoglucosamine mutase from B. anthracis


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.214 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Crystal Structure of Bacillus anthracis Phosphoglucosamine Mutase, an Enzyme in the Peptidoglycan Biosynthetic Pathway.

Mehra-Chaudhary, R.Mick, J.Beamer, L.J.

(2011) J.Bacteriol. 193: 4081-4087

  • DOI: 10.1128/JB.00418-11

  • PubMed Abstract: 
  • Phosphoglucosamine mutase (PNGM) is an evolutionarily conserved bacterial enzyme that participates in the cytoplasmic steps of peptidoglycan biosynthesis. As peptidoglycan is essential for bacterial survival and is absent in humans, enzymes in this p ...

    Phosphoglucosamine mutase (PNGM) is an evolutionarily conserved bacterial enzyme that participates in the cytoplasmic steps of peptidoglycan biosynthesis. As peptidoglycan is essential for bacterial survival and is absent in humans, enzymes in this pathway have been the focus of intensive inhibitor design efforts. Many aspects of the structural biology of the peptidoglycan pathway have been elucidated, with the exception of the PNGM structure. We present here the crystal structure of PNGM from the human pathogen and bioterrorism agent Bacillus anthracis. The structure reveals key residues in the large active site cleft of the enzyme which likely have roles in catalysis and specificity. A large conformational change of the C-terminal domain of PNGM is observed when comparing two independent molecules in the crystal, shedding light on both the apo- and ligand-bound conformers of the enzyme. Crystal packing analyses and dynamic light scattering studies suggest that the enzyme is a dimer in solution. Multiple sequence alignments show that residues in the dimer interface are conserved, suggesting that many PNGM enzymes adopt this oligomeric state. This work lays the foundation for the development of inhibitors for PNGM enzymes from human pathogens.


    Related Citations: 
    • Crystallization and initial crystallographic analysis of phosphoglucosamine mutase from Bacillus anthracis.
      Mehra-Chaudhary, R.,Neace, C.E.,Beamer, L.J.
      (2009) Acta Crystallogr.,Sect.F 65: 733


    Organizational Affiliation

    Biochemistry Department, University of Missouri, Columbia, MO 65211, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Phosphoglucosamine mutase
A, B
469Bacillus anthracisMutation(s): 0 
Gene Names: glmM
EC: 5.4.2.10
Find proteins for Q81VN7 (Bacillus anthracis)
Go to UniProtKB:  Q81VN7
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
A, B
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.214 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 86.064α = 90.00
b = 86.064β = 90.00
c = 266.844γ = 120.00
Software Package:
Software NamePurpose
MOLREPphasing
d*TREKdata reduction
d*TREKdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-08-24
    Type: Initial release