Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

Global Symmetry: Cyclic - C3  (3D View)
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

Global Symmetry: Cyclic - C3  (3D View)
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 72.74 kDa 
• Atom Count: 5368 
• Modelled Residue Count: 651 
• Deposited Residue Count: 662 
• Unique protein chains: 1

1FXJ

CRYSTAL STRUCTURE OF N-ACETYLGLUCOSAMINE 1-PHOSPHATE URIDYLTRANSFERASE

• PDB DOI: 10.2210/pdb1FXJ/pdb

• Classification: TRANSFERASE
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2000-09-26 Released: 2000-10-18 
• Deposition Author(s): Brown, K., Pompeo, F., Dixon, S., Mengin-Lecreulx, D., Cambillau, C., Bourne, Y.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free: 0.274 
• R-Value Work: 0.234 

Literature

Crystal structure of the bifunctional N-acetylglucosamine 1-phosphate uridyltransferase from Escherichia coli: a paradigm for the related pyrophosphorylase superfamily.

Brown, K., Pompeo, F., Dixon, S., Mengin-Lecreulx, D., Cambillau, C., Bourne, Y.

(1999) EMBO J 18: 4096-4107

• PubMed: 10428949 
• DOI: 10.1093/emboj/18.15.4096
• Primary Citation of Related Structures:  
  1FWY, 1FXJ


• PubMed Abstract: 
  

N-acetylglucosamine 1-phosphate uridyltransferase (GlmU) is a cytoplasmic bifunctional enzyme involved in the biosynthesis of the nucleotide-activated UDP-GlcNAc, which is an essential precursor for the biosynthetic pathways of peptidoglycan and other components in bacteria. The crystal structure of a truncated form of GlmU has been solved at 2.25 A resolution using the multiwavelength anomalous dispersion technique and its function tested with mutagenesis studies. The molecule is composed of two distinct domains connected by a long alpha-helical arm: (i) an N-terminal domain which resembles the dinucleotide-binding Rossmann fold; and (ii) a C-terminal domain which adopts a left-handed parallel beta-helix structure (LbetaH) as found in homologous bacterial acetyltransferases. Three GlmU molecules assemble into a trimeric arrangement with tightly packed parallel LbetaH domains, the long alpha-helical linkers being seated on top of the arrangement and the N-terminal domains projected away from the 3-fold axis. In addition, the 2.3 A resolution structure of the GlmU-UDP-GlcNAc complex reveals the structural bases required for the uridyltransferase activity. These structures exemplify a three-dimensional template for the development of new antibacterial agents and for studying other members of the large family of XDP-sugar bacterial pyrophosphorylases.

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Organizational Affiliation: 

AFMB-CNRS, 31 chemin Joseph Aiguier, 13402 Marseille Cedex 20.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
UDP-N-ACETYLGLUCOSAMINE PYROPHOSPHORYLASE	A, B	331	Escherichia coli	Mutation(s): 0  EC: 2.7.7.23 (PDB Primary Data), 2.3.1.157 (UniProt)
UniProt
Find proteins for P0ACC7 (Escherichia coli (strain K12)) Explore P0ACC7  Go to UniProtKB:  P0ACC7

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MES	D [auth A]	2-(N-MORPHOLINO)-ETHANESULFONIC ACID C6 H13 N O4 S SXGZJKUKBWWHRA-UHFFFAOYSA-N
SO4	C [auth A], E [auth B]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free: 0.274 
• R-Value Work: 0.234 
• Space Group: H 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 142.68	α = 90
b = 142.68	β = 90
c = 248.13	γ = 120

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALA	data scaling
SHELXS	phasing
CNS	refinement
CCP4	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2000-09-26 
• Released Date: 2000-10-18 
Deposition Author(s): Brown, K., Pompeo, F., Dixon, S., Mengin-Lecreulx, D., Cambillau, C., Bourne, Y.

Revision History  

• Version 1.0: 2000-10-18
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance