1EB7

Crystal structure of the di-haem cytochrome c peroxidase from Pseudomonas aeruginosa

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.172 

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This is version 1.2 of the entry. See complete history. 


Literature

Crystal Structure of the Di-Haemcytochrome C Peroxidase from Pseudomonas Aeruginosa

Fulop, V., Ridout, C.J., Greenwood, C., Hajdu, J.

(1995) Structure 3: 1225

  • DOI: https://doi.org/10.1016/s0969-2126(01)00258-1
  • Primary Citation of Related Structures:  
    1EB7

  • PubMed Abstract: 

    Cytochrome c peroxidase from Pseudomonas aeruginosa (PsCCP) represents a new class of peroxidases which work without the need to create a semi-stable free radical for catalysis. The enzyme is located in the bacterial periplasm where its likely function is to provide protection against toxic peroxides. The soluble 323-residue single polypeptide chain contains two covalent c-type haems with very different properties: one of them is a low-potential (-330 mV) centre where hydrogen peroxide is reduced (the peroxidatic site); the other is a high-potential (+320 mV) centre which feeds electrons to the peroxidatic site from soluble electron-shuttle proteins such as cytochrome c and azurin.

    • Organizational Affiliation: 

    Laboratory of Molecular Biophysics, University of Oxford, UK.


Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
CYTOCHROME C551 PEROXIDASE323Pseudomonas aeruginosaMutation(s): 0 
EC: 1.11.1.5
UniProt
Find proteins for P14532 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Explore P14532 
Go to UniProtKB:  P14532
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP14532
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
HEC
Query on HEC
Download Ideal Coordinates CCD File 
B [auth A],
C [auth A]		HEME C
C34 H34 Fe N4 O4
HXQIYSLZKNYNMH-LJNAALQVSA-N
CA
Query on CA
Download Ideal Coordinates CCD File 
D [auth A]CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.172 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 113.9α = 90
b = 113.9β = 90
c = 72γ = 120
Software Package:
Software NamePurpose
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
CCP4phasing

Structure Validation

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View more in-depth experimental data
Entry History 

Deposition Data

  • Released Date: 2001-07-24 
    • Deposition Author(s): Fulop, V.

Revision History  (Full details and data files)

  • Version 1.0: 2001-07-24
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance