1GTT

CRYSTAL STRUCTURE OF HPCE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.217 

wwPDB Validation   3D Report Full Report


This is version 1.3 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

  • DOI: 10.1021/bi015717t
  • Primary Citation of Related Structures:  
    1GTT

  • 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 species, including man ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
4-HYDROXYPHENYLACETATE DEGRADATION BIFUNCTIONAL ISOMERASE/DECARBOXYLASEA, B, C, D429Escherichia coliMutation(s): 0 
Gene Names: hpcE
EC: 5.3.3.10 (PDB Primary Data), 4.1.1 (PDB Primary Data), 4.1.1.68 (UniProt)
Find proteins for P37352 (Escherichia coli)
Explore P37352 
Go to UniProtKB:  P37352
Protein Feature View
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.217 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 126.084α = 90
b = 138.201β = 90
c = 103.973γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MARdata reduction
DENZOdata reduction
SCALEPACKdata scaling
MLPHAREphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-03-08
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2019-07-24
    Changes: Advisory, Data collection