3PDK

crystal structure of phosphoglucosamine mutase from B. anthracis


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.218 

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
  • Primary Citation of Related Structures:  
    3PDK

  • 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 pathway have been the focus of intensive inhibitor design efforts ...

    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 Struct Biol Cryst Commun 65: 733

    Organizational Affiliation

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



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Phosphoglucosamine mutaseA, B469Bacillus anthracisMutation(s): 0 
Gene Names: BAS0158BA_0157GBAA_0157glmM
EC: 5.4.2.10
UniProt
Find proteins for Q81VN7 (Bacillus anthracis)
Explore Q81VN7 
Go to UniProtKB:  Q81VN7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ81VN7
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.218 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 86.064α = 90
b = 86.064β = 90
c = 266.844γ = 120
Software Package:
Software NamePurpose
MOLREPphasing
REFMACrefinement
d*TREKdata reduction
d*TREKdata scaling

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

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