1C8U

CRYSTAL STRUCTURE OF THE E.COLI THIOESTERASE II, A HOMOLOGUE OF THE HUMAN NEF-BINDING ENZYME


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.218 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the Escherichia coli thioesterase II, a homolog of the human Nef binding enzyme.

Li, J.Derewenda, U.Dauter, Z.Smith, S.Derewenda, Z.S.

(2000) Nat.Struct.Mol.Biol. 7: 555-559

  • DOI: 10.1038/76776

  • PubMed Abstract: 
  • Here we report the solution and refinement at 1.9 A resolution of the crystal structure of the Escherichia coli medium chain length acyl-CoA thioesterase II. This enzyme is a close homolog of the human protein that interacts with the product of the H ...

    Here we report the solution and refinement at 1.9 A resolution of the crystal structure of the Escherichia coli medium chain length acyl-CoA thioesterase II. This enzyme is a close homolog of the human protein that interacts with the product of the HIV-1 Nef gene, sharing 45% amino acid sequence identity with it. The structure of the E. coli thioesterase II reveals a new tertiary fold, a 'double hot dog', showing an internal repeat with a basic unit that is structurally similar to the recently described beta-hydroxydecanoyl thiol ester dehydrase. The catalytic site, inferred from the crystal structure and verified by site directed mutagenesis, involves novel chemistry and includes Asp 204, Gln 278 and Thr 228, which synergistically activate a nucleophilic water molecule.


    Related Citations: 
    • Crystallization of Thioesterase II from Escherichia Coli
      Swenson, L.,Green, R.,Smith, S.,Derewenda, Z.S.
      (1994) J.Mol.Biol. 236: 660


    Organizational Affiliation

    Department of Molecular Physiology and Biological Physics, University of Virginia, P.O. Box 800736, Charlottesville, Virginia 22908-0736, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ACYL-COA THIOESTERASE II
A, B
285Escherichia coli (strain K12)Gene Names: tesB
EC: 3.1.2.-
Find proteins for P0AGG2 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AGG2
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
LDA
Query on LDA

Download SDF File 
Download CCD File 
A, B
LAURYL DIMETHYLAMINE-N-OXIDE
C14 H31 N O
SYELZBGXAIXKHU-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.218 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 95.902α = 90.00
b = 119.805β = 90.00
c = 165.479γ = 90.00
Software Package:
Software NamePurpose
AMoREphasing
SCALEPACKdata scaling
DENZOdata reduction
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-07-14
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance