1QQW

CRYSTAL STRUCTURE OF HUMAN ERYTHROCYTE CATALASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.206 
  • R-Value Observed: 0.211 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure of human erythrocyte catalase.

Ko, T.P.Safo, M.K.Musayev, F.N.Di Salvo, M.L.Wang, C.Wu, S.H.Abraham, D.J.

(2000) Acta Crystallogr D Biol Crystallogr 56: 241-245

  • DOI: 10.1107/s0907444999015930
  • Primary Citation of Related Structures:  
    1QQW

  • PubMed Abstract: 
  • Catalase (E.C. 1.11.1.6) was purified from human erythrocytes and crystallized in three different forms: orthorhombic, hexagonal and tetragonal. The structure of the orthorhombic crystal form of human erythrocyte catalase (HEC), with space group P2(1 ...

    Catalase (E.C. 1.11.1.6) was purified from human erythrocytes and crystallized in three different forms: orthorhombic, hexagonal and tetragonal. The structure of the orthorhombic crystal form of human erythrocyte catalase (HEC), with space group P2(1)2(1)2(1) and unit-cell parameters a = 84.9, b = 141.7, c = 232.5 A, was determined and refined with 2.75 A resolution data. Non-crystallographic symmetry restraints were employed and the resulting R value and R(free) were 0.206 and 0.272, respectively. The overall structure and arrangement of HEC molecules in the orthorhombic unit cell were very similar to those of bovine liver catalase (BLC). However, no NADPH was observed in the HEC crystal and a water was bound to the active-site residue His75. Conserved lattice interactions suggested a common growth mechanism for the orthorhombic crystals of HEC and BLC.


    Organizational Affiliation

    Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan. kotping@gate.sinica.edu.tw



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CATALASEABCD527Homo sapiensMutation(s): 0 
Gene Names: CAT
EC: 1.11.1.6
Find proteins for P04040 (Homo sapiens)
Explore P04040 
Go to UniProtKB:  P04040
NIH Common Fund Data Resources
PHAROS  P04040
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download CCD File 
A, B, C, 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: 2.75 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.206 
  • R-Value Observed: 0.211 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 84.904α = 90
b = 141.674β = 90
c = 232.46γ = 90
Software Package:
Software NamePurpose
AMoREphasing
X-PLORrefinement
bioteXdata reduction
bioteXdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-06-14
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-04
    Changes: Refinement description