1IPH

STRUCTURE OF CATALASE HPII FROM ESCHERICHIA COLI

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Work: 0.200 
  • R-Value Observed: 0.200 

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


Literature

Crystal structure of catalase HPII from Escherichia coli.

Bravo, J., Verdaguer, N., Tormo, J., Betzel, C., Switala, J., Loewen, P.C., Fita, I.

(1995) Structure 3: 491-502

  • DOI: 10.1016/s0969-2126(01)00182-4
  • Primary Citation of Related Structures:  
    1IPH

  • PubMed Abstract: 

    • Catalase is a ubiquitous enzyme present in both the prokaryotic and eukaryotic cells of aerobic organisms. It serves, in part, to protect the cell from the toxic effects of small peroxides. Escherichia coli produces two catalases, HPI and HPII, that are quite distinct from other catalases in physical structure and catalytic properties ...

    Catalase is a ubiquitous enzyme present in both the prokaryotic and eukaryotic cells of aerobic organisms. It serves, in part, to protect the cell from the toxic effects of small peroxides. Escherichia coli produces two catalases, HPI and HPII, that are quite distinct from other catalases in physical structure and catalytic properties. HPII, studied in this work, is encoded by the katE gene, and has been characterized as an oligomeric, monofunctional catalase containing one cis-heme d prosthetic group per subunit of 753 residues.

    Related Citations: 
    • 2.8 A Crystal Structure of Catalase Hpii from Escherichia Coli
      Bravo, J., Verdaguer, N., Tormo, J., Betzel, C., Switala, J., Loewen, P.C., Fita, I.
      (1993) Joint Ccp4 Esf-eacbm Newsletter On Protein Crystallography 28: 79
    • Crystallization and Preliminary X-Ray Diffraction Analysis of Catalase Hpii from Escherichia Coli
      Tormo, J., Fita, I., Switala, J., Loewen, P.C.
      (1990) J Mol Biol 213: 219
    • The Refined Structure of Beef Liver Catalase at 2.5 A Resolution
      Fita, I., Silva, A.M., Murthy, M.R.N., Rossmann, M.G.
      (1986) Acta Crystallogr B 42: 497
    Organizational Affiliation: 

    Departamento de Ingeniería Química, Universidad Politécnica de Catalunña, Barcelona, Spain.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CATALASE HPIIA, B, C, D753Escherichia coliMutation(s): 0 
EC: 1.11.1.6
UniProt
Find proteins for P21179 (Escherichia coli (strain K12))
Explore P21179 
Go to UniProtKB:  P21179
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM (Subject of Investigation/LOI)
Query on HEM
Download Ideal Coordinates CCD File 
 E [auth A], F [auth B], G [auth C], H [auth D]PROTOPORPHYRIN IX CONTAINING FE
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Work: 0.200 
  • R-Value Observed: 0.200 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 95.2α = 90
b = 134.7β = 109.4
c = 124.4γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1997-09-04
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance