1IYX

Crystal structure of enolase from Enterococcus hirae


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.175 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal Structure of Enterococcus hirae Enolase at 2.8 A Resolution

Hosaka, T.Meguro, T.Yamato, I.Shirakihara, Y.

(2003) J.BIOCHEM.(TOKYO) 133: 817-823


  • PubMed Abstract: 
  • We report the crystal structure of an enolase from Enterococcus hirae, which is the first report of a structure determination among gram-positive bacteria. We isolated the enolase gene and determined the base sequence. The amino acid sequence deduced ...

    We report the crystal structure of an enolase from Enterococcus hirae, which is the first report of a structure determination among gram-positive bacteria. We isolated the enolase gene and determined the base sequence. The amino acid sequence deduced from the DNA sequence suggests that this enolase is composed of 431 amino acids. The amino acid sequence is very similar to those of enolases from eukaryotic and prokaryotic organisms, being 65% and 50% identical to enolases from Escherichia coli and yeast, respectively. The enolase prepared from E. hirae lysate yielded crystals containing one dimer per asymmetric unit. X-ray diffraction patterns were obtained at 2.8 A resolution on a SPring-8 synchrotron radiation source. Crystals belong to space group I4 with unit cell dimensions of a = b = 153.5 A, c = 90.7 A. The E. hirae, yeast, E. coli and lobster enolase structures are very similar. The E. hirae enolase takes an "Open" conformation. The regions in the structure that differ most from other enolases are loops L4 (132-140) and L3 (244-265). Considering the positions of these loops relative to the active site, they seem to have no direct involvement in function. Our findings show that the three dimensional structure of an important enzyme in the glycolytic pathway is evolutionarily conserved among eukaryotes and prokaryotes, including gram-positive bacteria.


    Organizational Affiliation

    Department of Biological Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda-shi, Chiba 278-8510.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ENOLASE
A, B
432Enterococcus hiraeGene Names: eno
EC: 4.2.1.11
Find proteins for Q8GR70 (Enterococcus hirae)
Go to UniProtKB:  Q8GR70
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
GOL
Query on GOL

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Download CCD File 
A, B
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

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Download CCD File 
A, B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.175 
  • Space Group: I 4
Unit Cell:
Length (Å)Angle (°)
a = 153.510α = 90.00
b = 153.510β = 90.00
c = 90.660γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
MOSFLMdata reduction
CCP4data scaling
CNSrefinement
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-07-29
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance