1GTT

CRYSTAL STRUCTURE OF HPCE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.216 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The Crystal Structure of Hpce, a Bifunctional Decarboxylase/Isomerase with a Multifunctional Fold.

Tame, J.R.H.Namba, K.Dodson, E.J.Roper, D.I.

(2002) Biochemistry 41: 2982


  • PubMed Abstract: 
  • The structure of the bifunctional enzyme HpcE (OPET decarboxylase/HHDD isomerase) from Escherichia coli shows that the protein consists of highly similar N and C terminal halves. Sequence matches suggest that this fold is widespread among different s ...

    The structure of the bifunctional enzyme HpcE (OPET decarboxylase/HHDD isomerase) from Escherichia coli shows that the protein consists of highly similar N and C terminal halves. Sequence matches suggest that this fold is widespread among different species, including man. Many of these homologues are uncharacterized but apparently connected with the metabolism of aromatic compounds. The domain shows similar topology to the C terminal domain of fumarylacetoacetate hydrolase (FAH), a functionally related enzyme, despite lacking significant overall sequence similarity. HpcE is known to catalyze two rather different reactions, and comparisons with FAH allow some tentative conclusions to be drawn about the active sites. Key mutations within the active site apparently allow enzymes with this fold to carry out a variety chemical processes.


    Organizational Affiliation

    Protein Design Laboratory, Yokohama City University, Suehiro 1-7-29, Kanagawa 230-0045, Japan. jtame@tsurumi.yokohama-cu.ac.jp




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
4-HYDROXYPHENYLACETATE DEGRADATION BIFUNCTIONAL ISOMERASE/DECARBOXYLASE
A, B, C, D
429Escherichia coliMutation(s): 0 
Gene Names: hpcE
EC: 5.3.3.10, 4.1.1.68
Find proteins for P37352 (Escherichia coli)
Go to UniProtKB:  P37352
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
A, B, C, D
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.216 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 126.084α = 90.00
b = 138.201β = 90.00
c = 103.973γ = 90.00
Software Package:
Software NamePurpose
MARdata reduction
SCALEPACKdata scaling
MLPHAREphasing
DENZOdata reduction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-03-08
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance