1QHB

VANADIUM BROMOPEROXIDASE FROM RED ALGA CORALLINA OFFICINALIS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.172 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of dodecameric vanadium-dependent bromoperoxidase from the red algae Corallina officinalis.

Isupov, M.N.Dalby, A.R.Brindley, A.A.Izumi, Y.Tanabe, T.Murshudov, G.N.Littlechild, J.A.

(2000) J Mol Biol 299: 1035-1049

  • DOI: 10.1006/jmbi.2000.3806
  • Primary Citation of Related Structures:  
    1QHB

  • PubMed Abstract: 
  • The three-dimensional structure of the vanadium bromoperoxidase protein from the marine red macroalgae Corallina officinalis has been determined by single isomorphous replacement at 2.3 A resolution. The enzyme subunit is made up of 595 amino acid residues folded into a single alpha+beta domain ...

    The three-dimensional structure of the vanadium bromoperoxidase protein from the marine red macroalgae Corallina officinalis has been determined by single isomorphous replacement at 2.3 A resolution. The enzyme subunit is made up of 595 amino acid residues folded into a single alpha+beta domain. There are 12 bromoperoxidase subunits, arranged with 23-point group symmetry. A cavity is formed by the N terminus of each subunit in the centre of the dodecamer. The subunit fold and dimer organisation of the Cor. officinalis vanadium bromoperoxidase are similar to those of the dimeric enzyme from the brown algae Ascophyllum nodosum, with which it shares 33 % sequence identity. The different oligomeric state of the two algal enzymes seems to reflect separate mechanisms of adaptation to harsh environmental conditions and/or to chemically active substrates and products. The residues involved in the vanadate binding are conserved between the two algal bromoperoxidases and the vanadium chloroperoxidase from the fungus Curvularia inaequalis. However, most of the other residues forming the active-site cavity are different in the three enzymes, which reflects differences in the substrate specificity and stereoselectivity of the reaction. A dimer of the Cor. officinalis enzyme partially superimposes with the two-domain monomer of the fungal enzyme.


    Related Citations: 
    • Preliminary X-Ray Analysis of a New Crystal Form of the Vanadium-Dependent Bromoperoxidase from Corallina officinalis
      Brindley, A.A., Dalby, A.R., Isupov, M.N., Littlechild, J.A.
      (1998) Acta Crystallogr D Biol Crystallogr 54: 454

    Organizational Affiliation

    Schools of Chemistry and Biological Sciences, University of Exeter, Stocker Road, Exeter, EX4 4QD, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HALOPEROXIDASEA, B, C, D, E, F596Corallina officinalisMutation(s): 0 
EC: 1.11.1.10 (PDB Primary Data), 1.11.1.18 (UniProt)
UniProt
Find proteins for Q8LLW7 (Corallina officinalis)
Explore Q8LLW7 
Go to UniProtKB:  Q8LLW7
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.172 
  • Space Group: P 42 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 201.915α = 90
b = 201.915β = 90
c = 178.109γ = 90
Software Package:
Software NamePurpose
SHELXmodel building
MLPHAREphasing
DMmodel building
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
SHELXphasing
DMphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-07-05
    Type: Initial release
  • Version 1.1: 2007-10-16
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance