3S2U

Crystal structure of the Pseudomonas aeruginosa MurG:UDP-GlcNAc substrate complex

• PDB DOI: https://doi.org/10.2210/pdb3S2U/pdb

• Classification: TRANSFERASE
• Organism(s): Pseudomonas aeruginosa PAO1
• Mutation(s): No 
• Membrane Protein: Yes  OPM


• Deposited: 2011-05-17 Released: 2012-09-26 
• Deposition Author(s): Brown, K., Vial, S.C.M., Dedi, N., Westcott, J., Scally, S., Bugg, T.D.H., Charlton, P.A., Cheetham, G.M.T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.23 Å
• R-Value Free: 0.278 
• R-Value Work: 0.209 
• R-Value Observed: 0.214 

Literature

Crystal Structure of the Pseudomonas aeruginosa MurG: UDP-GlcNAc Substrate Complex.

Brown, K., Vial, S.C., Dedi, N., Westcott, J., Scally, S., Bugg, T.D., Charlton, P.A., Cheetham, G.M.

(2013) Protein Pept Lett 20: 1002-1008

• PubMed: 22973843 
• DOI: https://doi.org/10.2174/0929866511320090006
• Primary Citation of Related Structures:  
  3S2U


• PubMed Abstract: 
  

  MurG is an essential bacterial glycosyltransferase enzyme in Pseudomonas aeruginosa performing one of the key membrane steps of peptidoglycan synthesis catalyzing the transfer of N-acetyl glucosamine (GlcNAc) from its donor substrate, UDP-GlcNAc, to the acceptor substrate Lipid I. We have solved the crystal structure of the complex between Pseudomonas aeruginosa MurG and UDP-GlcNAc and compared it with the previously solved complex from E. coli. The structure reveals a large-scale conformational change in the relative orientations of the N- and C-terminal domains, which has the effect of widening the cofactor binding site and displacing the UDP-GlcNAc donor. These results suggest new opportunities to design potent inhibitors of peptidoglycan biosynthesis.

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Organizational Affiliation: 

Vertex Pharmaceuticals (Europe) Ltd, 88 Milton Park, Abingdon, Oxfordshire, OX14 4RY, UK. [e-mail]

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 39.53 kDa 
• Atom Count: 2,613 
• Modelled Residue Count: 331 
• Deposited Residue Count: 365 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
UDP-N-acetylglucosamine--N-acetylmuramyl-(pentapeptide) pyrophosphoryl-undecaprenol N-acetylglucosamine transferase	A	365	Pseudomonas aeruginosa PAO1	Mutation(s): 0  Gene Names: murG, PA4412 EC: 2.4.1.227 Membrane Entity: Yes
UniProt
Find proteins for Q9HW01 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)) Explore Q9HW01  Go to UniProtKB:  Q9HW01

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
UD1	B [auth A]	URIDINE-DIPHOSPHATE-N-ACETYLGLUCOSAMINE C17 H27 N3 O17 P2 LFTYTUAZOPRMMI-CFRASDGPSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.23 Å
• R-Value Free: 0.278 
• R-Value Work: 0.209 
• R-Value Observed: 0.214 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 49.93	α = 90
b = 49.93	β = 90
c = 278.62	γ = 90

Software Package:

Software Name	Purpose
DNA	data collection
AMoRE	phasing
CNS	refinement
MOSFLM	data reduction
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-09-26 
Deposition Author(s): Brown, K., Vial, S.C.M., Dedi, N., Westcott, J., Scally, S., Bugg, T.D.H., Charlton, P.A., Cheetham, G.M.T.

Revision History  

• Version 1.0: 2012-09-26
  Type: Initial release
  
• Version 1.1: 2013-05-08
  Changes: Database references
• Version 1.2: 2013-08-14
  Changes: Database references
• Version 1.3: 2024-02-28
  Changes: Data collection, Database references, Derived calculations