2OI6

E. coli GlmU- Complex with UDP-GlcNAc, CoA and GlcN-1-PO4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.208 
  • R-Value Work: 0.178 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the E. coli bifunctional GlmU acetyltransferase active site with substrates and products.

Olsen, L.R.Vetting, M.W.Roderick, S.L.

(2007) Protein Sci. 16: 1230-1235

  • DOI: 10.1110/ps.072779707
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The biosynthesis of UDP-GlcNAc in bacteria is carried out by GlmU, an essential bifunctional uridyltransferase that catalyzes the CoA-dependent acetylation of GlcN-1-PO(4) to form GlcNAc-1-PO(4) and its subsequent condensation with UTP to form pyroph ...

    The biosynthesis of UDP-GlcNAc in bacteria is carried out by GlmU, an essential bifunctional uridyltransferase that catalyzes the CoA-dependent acetylation of GlcN-1-PO(4) to form GlcNAc-1-PO(4) and its subsequent condensation with UTP to form pyrophosphate and UDP-GlcNAc. As a metabolite, UDP-GlcNAc is situated at a branch point leading to the biosynthesis of lipopolysaccharide and peptidoglycan. Consequently, GlmU is regarded as an important target for potential antibacterial agents. The crystal structure of the Escherichia coli GlmU acetyltransferase active site has been determined in complexes with acetyl-CoA, CoA/GlcN-1-PO(4), and desulpho-CoA/GlcNAc-1-PO(4). These structures reveal the enzyme groups responsible for binding the substrates. A superposition of these complex structures suggests that the 2-amino group of GlcN-1-PO(4) is positioned in proximity to the acetyl-CoA to facilitate direct attack on its thioester by a ternary complex mechanism.


    Organizational Affiliation

    Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York 10461, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Bifunctional protein glmU
A, B
456Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: glmU (yieA)
Find proteins for P0ACC7 (Escherichia coli (strain K12))
Go to UniProtKB:  P0ACC7
Small Molecules
Ligands 6 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

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B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
COA
Query on COA

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A, B
COENZYME A
C21 H36 N7 O16 P3 S
RGJOEKWQDUBAIZ-IBOSZNHHSA-N
 Ligand Interaction
MG
Query on MG

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A, B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
GP1
Query on GP1

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A, B
GLUCOSAMINE 1-PHOSPHATE
C6 H14 N O8 P
YMJBYRVFGYXULK-QZABAPFNSA-N
 Ligand Interaction
CO
Query on CO

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A, B
COBALT (II) ION
Co
XLJKHNWPARRRJB-UHFFFAOYSA-N
 Ligand Interaction
UD1
Query on UD1

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A, B
URIDINE-DIPHOSPHATE-N-ACETYLGLUCOSAMINE
C17 H27 N3 O17 P2
LFTYTUAZOPRMMI-CFRASDGPSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.208 
  • R-Value Work: 0.178 
  • Space Group: H 3 2
Unit Cell:
Length (Å)Angle (°)
a = 102.760α = 90.00
b = 102.760β = 90.00
c = 644.828γ = 120.00
Software Package:
Software NamePurpose
CNSphasing
DENZOdata reduction
SCALEPACKdata scaling
MAR345dtbdata collection
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-06-19
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance