1CQX

Crystal structure of the flavohemoglobin from Alcaligenes eutrophus at 1.75 A resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.182 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure of the flavohemoglobin from Alcaligenes eutrophus at 1.75 A resolution.

Ermler, U.Siddiqui, R.A.Cramm, R.Friedrich, B.

(1995) EMBO J. 14: 6067-6077


  • PubMed Abstract: 
  • The molecular structure of the flavohemoglobin from Alcaligenes eutrophus has been determined to a resolution of 1.75 A and refined to an R-factor of 19.6%. The protein comprises two fused modules: a heme binding module, which belongs to the globin f ...

    The molecular structure of the flavohemoglobin from Alcaligenes eutrophus has been determined to a resolution of 1.75 A and refined to an R-factor of 19.6%. The protein comprises two fused modules: a heme binding module, which belongs to the globin family, and an FAD binding oxidoreductase module, which adopts a fold like ferredoxin reductase. The most striking deviation of the bacterial globin structure from those of other species is the movement of helix E in a way to provide more space in the vicinity of the distal heme binding site. A comparison with other members of the ferredoxin reductase family shows similar tertiary structures for the individual FAD and NAD binding domains but largely different interdomain orientations. The heme and FAD molecules approach each other to a minimal distance of 6.3 A and adopt an interplanar angle of 80 degrees. The electron transfer from FAD to heme occurs in a predominantly polar environment and may occur directly or be mediated by a water molecule.


    Related Citations: 
    • Phospholipid bound to the flavohemoprotein from alcaligenes eutrophus
      Ollesch, G.,Kaunzinger, A.,Juchelka, D.,Schubert-Zsilavecz, M.,Ermler, U.
      (1999) Eur.J.Biochem. 262: 396


    Organizational Affiliation

    Max-Planck-Institut fur Biophysik, Frankfurt, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FLAVOHEMOPROTEIN
A, B
403Cupriavidus necator (strain ATCC 17699 / H16 / DSM 428 / Stanier 337)Mutation(s): 0 
Gene Names: hmp (fhp)
Find proteins for P39662 (Cupriavidus necator (strain ATCC 17699 / H16 / DSM 428 / Stanier 337))
Go to UniProtKB:  P39662
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DGG
Query on DGG

Download SDF File 
Download CCD File 
A, B
1-[GLYCEROLYLPHOSPHONYL]-2-[8-(2-HEXYL-CYCLOPROPYL)-OCTANAL-1-YL]-3-[HEXADECANAL-1-YL]-GLYCEROL
C39 H75 O10 P
JWIOKCJPLNKYBQ-JIZALCTLSA-N
 Ligand Interaction
NA
Query on NA

Download SDF File 
Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
FAD
Query on FAD

Download SDF File 
Download CCD File 
A, B
FLAVIN-ADENINE DINUCLEOTIDE
C27 H33 N9 O15 P2
VWWQXMAJTJZDQX-UYBVJOGSSA-N
 Ligand Interaction
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
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.182 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 52.200α = 90.00
b = 85.800β = 81.80
c = 103.900γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
ROTAVATAdata reduction
Agrovatadata reduction
MOSFLMdata reduction
MLPHAREphasing
CCP4data scaling
ROTAVATAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-08-31
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance
  • Version 1.3: 2017-10-04
    Type: Refinement description