1FGJ

X-RAY STRUCTURE OF HYDROXYLAMINE OXIDOREDUCTASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.309 
  • R-Value Work: 0.230 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The 2.8 A structure of hydroxylamine oxidoreductase from a nitrifying chemoautotrophic bacterium, Nitrosomonas europaea.

Igarashi, N.Moriyama, H.Fujiwara, T.Fukumori, Y.Tanaka, N.

(1997) Nat.Struct.Mol.Biol. 4: 276-284


  • PubMed Abstract: 
  • The 2.8 A crystal structure of hydroxylamine oxidoreductase of a nitrifying chemoautotrophic bacterium, Nitrosomonas europaea, is described. Twenty-four haems lie in the centre bottom of the trimeric molecule, localized in four clusters within each m ...

    The 2.8 A crystal structure of hydroxylamine oxidoreductase of a nitrifying chemoautotrophic bacterium, Nitrosomonas europaea, is described. Twenty-four haems lie in the centre bottom of the trimeric molecule, localized in four clusters within each monomer. The haem clusters within the trimer are aligned to form a ring that has inlet and outlet sites. The inlet is occupied by a novel haem, P460, and there are two possible outlet sites per monomer formed by paired haems lying within a cavity or cleft on the protein surface. The structure suggests pathways by which electron transfer may occur through the precisely arranged haems and provides a framework for the interpretation of previous and future biochemical and genetic observations.


    Organizational Affiliation

    Department of Life Science, Faculty of Bioscience and Biotechnology, Tokyo Institute of Technology, Yokohama, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HYDROXYLAMINE OXIDOREDUCTASE
A, B
546Nitrosomonas europaea (strain ATCC 19718 / NBRC 14298)Gene Names: hao1, hao2, hao3
EC: 1.7.2.6
Find proteins for Q50925 (Nitrosomonas europaea (strain ATCC 19718 / NBRC 14298))
Go to UniProtKB:  Q50925
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

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

Download SDF File 
Download CCD File 
A, B
HEME C
C34 H34 Fe N4 O4
HXQIYSLZKNYNMH-LJNAALQVSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.309 
  • R-Value Work: 0.230 
  • Space Group: P 63
Unit Cell:
Length (Å)Angle (°)
a = 96.200α = 90.00
b = 96.200β = 90.00
c = 265.700γ = 120.00
Software Package:
Software NamePurpose
CCP4data scaling
X-PLORrefinement
X-PLORmodel building
PHASESphasing
X-PLORphasing
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-03-04
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance