1CJC

STRUCTURE OF ADRENODOXIN REDUCTASE OF MITOCHONDRIAL P450 SYSTEMS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

The structure of adrenodoxin reductase of mitochondrial P450 systems: electron transfer for steroid biosynthesis.

Ziegler, G.A.Vonrhein, C.Hanukoglu, I.Schulz, G.E.

(1999) J.Mol.Biol. 289: 981-990

  • DOI: 10.1006/jmbi.1999.2807
  • Also Cited By: 1E1K, 1E1L, 1E1M, 1E1N

  • PubMed Abstract: 
  • Adrenodoxin reductase is a monomeric 51 kDa flavoenzyme that is involved in the biosynthesis of all steroid hormones. The structure of the native bovine enzyme was determined at 2.8 A resolution, and the structure of the respective recombinant enzyme ...

    Adrenodoxin reductase is a monomeric 51 kDa flavoenzyme that is involved in the biosynthesis of all steroid hormones. The structure of the native bovine enzyme was determined at 2.8 A resolution, and the structure of the respective recombinant enzyme at 1.7 A resolution. Adrenodoxin reductase receives a two-electron package from NADPH and converts it to two single electrons that are transferred via adrenodoxin to all mitochondrial cytochromes P 450. The structure suggests how the observed flavin semiquinone is stabilized. A striking feature is the asymmetric charge distribution, which most likely controls the approach of the electron carrier adrenodoxin. A model for the interaction is proposed. Adrenodoxin reductase shows clear sequence homology to half a dozen proteins identified in genome analysis projects, but neither sequence nor structural homology to established, functionally related electron transferases. Yet, the structure revealed a relationship to the disulfide oxidoreductases, permitting the assignment of the NADP-binding site.


    Related Citations: 
    • Chaperone-Assisted Expression of Authentic Bovine Adrenodoxin Reductase in Escherichia coli
      Vonrhein, C.,Schmidt, U.,Ziegler, G.A.,Schweiger, S.,Hanukoglu, I.,Schulz, G.E.
      (1999) FEBS Lett. 443: 167


    Organizational Affiliation

    Albert-Ludwigs-Universit├Ąt, Albertstrasse 21, Freiburg im Breisgau, D-79104, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (ADRENODOXIN REDUCTASE)
A
460Bos taurusGene Names: FDXR (ADXR)
EC: 1.18.1.6
Find proteins for P08165 (Bos taurus)
Go to Gene View: FDXR
Go to UniProtKB:  P08165
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FAD
Query on FAD

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.188 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 60.810α = 90.00
b = 62.530β = 106.76
c = 78.370γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
SHARPphasing
CCP4data scaling
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-04-30
    Type: Initial release
  • Version 1.1: 2008-04-26
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2013-04-17
    Type: Structure summary