1AXQ

FERRICYANIDE OXIDIZED FDI

• PDB DOI: https://doi.org/10.2210/pdb1AXQ/pdb

• Classification: ELECTRON TRANSPORT
• Organism(s): Azotobacter vinelandii
• Expression System: Azotobacter vinelandii
• Mutation(s): No 


• Deposited: 1997-10-17 Released: 1998-01-28 
• Deposition Author(s): Stout, C.D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Work: 0.255 
• R-Value Observed: 0.255 

Literature

Crystal structures of ferricyanide-oxidized [Fe-S] clusters in Azotobacter vinelandii ferredoxin I.

Sridhar, V., Prasad, G.S., Burgess, B.K., Stout, C.D.

(1998) J Biol Inorg Chem 3: 140-149

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 12.71 kDa 
• Atom Count: 856 
• Modelled Residue Count: 106 
• Deposited Residue Count: 106 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
FERREDOXIN	A	106	Azotobacter vinelandii	Mutation(s): 0  Gene Names: FDXA
UniProt
Find proteins for P00214 (Azotobacter vinelandii) Explore P00214  Go to UniProtKB:  P00214

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SF4	B [auth A]	IRON/SULFUR CLUSTER Fe4 S4 LJBDFODJNLIPKO-UHFFFAOYSA-N
F3S	C [auth A]	FE3-S4 CLUSTER Fe3 S4 FCXHZBQOKRZXKS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Work: 0.255 
• R-Value Observed: 0.255 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 55.6	α = 90
b = 55.6	β = 90
c = 95.8	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
XENGEN	data reduction
XENGEN	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1998-01-28 
Deposition Author(s): Stout, C.D.

Revision History  

• Version 1.0: 1998-01-28
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-08-02
  Changes: Database references, Derived calculations, Other, Refinement description