1GWH

Atomic resolution structure of Micrococcus Lysodeikticus catalase complexed with NADPH


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.74 Å
  • R-Value Free: 0.138 
  • R-Value Work: 0.111 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The Structures of Micrococcus Lysodeikticus Catalase, its Ferryl Intermediate (Compound II) and Nadph Complex.

Murshudov, G.N.Grebenko, A.I.Brannigan, J.A.Antson, A.A.Barynin, V.V.Dodson, G.G.Dauter, Z.Wilson, K.S.Melik-Adamyan, W.R.

(2002) Acta Crystallogr.,Sect.D 58: 1972-1982

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The crystal structure of the bacterial catalase from Micrococcus lysodeikticus has been refined using the gene-derived sequence both at 0.88 A resolution using data recorded at 110 K and at 1.5 A resolution with room-temperature data. The atomic reso ...

    The crystal structure of the bacterial catalase from Micrococcus lysodeikticus has been refined using the gene-derived sequence both at 0.88 A resolution using data recorded at 110 K and at 1.5 A resolution with room-temperature data. The atomic resolution structure has been refined with individual anisotropic atomic thermal parameters. This has revealed the geometry of the haem and surrounding protein, including many of the H atoms, with unprecedented accuracy and has characterized functionally important hydrogen-bond interactions in the active site. The positions of the H atoms are consistent with the enzymatic mechanism previously suggested for beef liver catalase. The structure reveals that a 25 A long channel leading to the haem is filled by partially occupied water molecules, suggesting an inherent facile access to the active site. In addition, the structures of the ferryl intermediate of the catalase, the so-called compound II, at 1.96 A resolution and the catalase complex with NADPH at 1.83 A resolution have been determined. Comparison of compound II and the resting state of the enzyme shows that the binding of the O atom to the iron (bond length 1.87 A) is associated with increased haem bending and is accompanied by a distal movement of the iron and the side chain of the proximal tyrosine. Finally, the structure of the NADPH complex shows that the cofactor is bound to the molecule in an equivalent position to that found in beef liver catalase, but that only the adenine part of NADPH is visible in the present structure.


    Organizational Affiliation

    Structural Biology Laboratory, Department of Chemistry, University of York, York YO10 5DD, England. garib@ysbl.york.ac.uk




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Catalase
A
503Micrococcus luteusMutation(s): 0 
Gene Names: katA
EC: 1.11.1.6
Find proteins for P29422 (Micrococcus luteus)
Go to UniProtKB:  P29422
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

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A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
ACT
Query on ACT

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A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
HEM
Query on HEM

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Download CCD File 
A
PROTOPORPHYRIN IX CONTAINING FE
HEME
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
NDP
Query on NDP

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A
NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
C21 H30 N7 O17 P3
ACFIXJIJDZMPPO-NNYOXOHSSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.74 Å
  • R-Value Free: 0.138 
  • R-Value Work: 0.111 
  • Space Group: P 42 21 2
Unit Cell:
Length (Å)Angle (°)
a = 106.700α = 90.00
b = 106.700β = 90.00
c = 106.250γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-03-19
    Type: Initial release
  • Version 1.1: 2015-04-15
    Type: Database references, Derived calculations, Non-polymer description, Other, Version format compliance
  • Version 1.2: 2018-06-20
    Type: Advisory, Data collection, Database references, Source and taxonomy, Structure summary