1AYF

BOVINE ADRENODOXIN (OXIDIZED)

• PDB DOI: https://doi.org/10.2210/pdb1AYF/pdb

• Classification: ELECTRON TRANSPORT
• Organism(s): Bos taurus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1997-11-03 Released: 1998-12-30 
• Deposition Author(s): Mueller, A., Mueller, J.J., Heinemann, U.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.253 
• R-Value Work: 0.195 
• R-Value Observed: 0.193 

Literature

New aspects of electron transfer revealed by the crystal structure of a truncated bovine adrenodoxin, Adx(4-108).

Muller, A., Muller, J.J., Muller, Y.A., Uhlmann, H., Bernhardt, R., Heinemann, U.

(1998) Structure 6: 269-280

• PubMed: 9551550 
• DOI: https://doi.org/10.1016/s0969-2126(98)00031-8
• Primary Citation of Related Structures:  
  1AYF


• PubMed Abstract: 
  

  Adrenodoxin (Adx) is a [2Fe-2S] ferredoxin involved in steroid hormone biosynthesis in the adrenal gland mitochondrial matrix of mammals. Adx is a small soluble protein that transfers electrons from adrenodoxin reductase (AR) to different cytochrome P450 isoforms where they are consumed in hydroxylation reactions. A crystallographic study of Adx is expected to reveal the structural basis for an important electron transfer reaction mediated by a vertebrate [2Fe-2S] ferredoxin.

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Organizational Affiliation: 

Forschungsgruppe Kristallographie, Max-Delbrück-Centrum für Molekulare Medizin, Berlin, Germany.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 23.77 kDa 
• Atom Count: 1,831 
• Modelled Residue Count: 207 
• Deposited Residue Count: 210 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ADRENODOXIN	A, B	105	Bos taurus	Mutation(s): 0
UniProt
Find proteins for P00257 (Bos taurus) Explore P00257  Go to UniProtKB:  P00257

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FES	C [auth A], D [auth B]	FE2/S2 (INORGANIC) CLUSTER Fe2 S2 NIXDOXVAJZFRNF-UHFFFAOYSA-N
GOL	E [auth B]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.253 
• R-Value Work: 0.195 
• R-Value Observed: 0.193 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 44.18	α = 90
b = 78.34	β = 90
c = 60.6	γ = 90

Software Package:

Software Name	Purpose
DM	model building
HEAVY	model building
MLPHARE	phasing
CCP4	refinement
DENZO	data reduction
SCALEPACK	data scaling
DM	phasing
HEAVY	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1998-12-30 
Deposition Author(s): Mueller, A., Mueller, J.J., Heinemann, U.

Revision History  

• Version 1.0: 1998-12-30
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2024-02-07
  Changes: Data collection, Database references, Derived calculations