Biological Assembly 1  

 3D View: Structure | Ligand Interaction

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 35702.81 
• Atom Count: 2431 
• Residue Count: 304 
• Unique protein chains: 1

1QUF

X-RAY STRUCTURE OF A COMPLEX NADP+-FERREDOXIN:NADP+ REDUCTASE FROM THE CYANOBACTERIUM ANABAENA PCC 7119 AT 2.25 ANGSTROMS

• DOI: 10.2210/pdb1QUF/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Nostoc sp. (strain ATCC 29151 / PCC 7119)


• Deposited: 1996-09-07 Released: 1997-09-17 
• Deposition Author(s): Serre, L., Frey, M., Vellieux, F.M.D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free: 0.265 
• R-Value Work: 0.186 

Literature

X-ray structure of the ferredoxin:NADP+ reductase from the cyanobacterium Anabaena PCC 7119 at 1.8 A resolution, and crystallographic studies of NADP+ binding at 2.25 A resolution.

Serre, L., Vellieux, F.M., Medina, M., Gomez-Moreno, C., Fontecilla-Camps, J.C., Frey, M.

(1996) J.Mol.Biol. 263: 20-39

• PubMed: 8890910 
• DOI: 10.1006/jmbi.1996.0553
• Primary Citation of Related Structures:  
  1QUE
• Also Cited By: 1QH0, 1QGZ, 1QGY, 1W35, 1H85, 1GR1, 1GO2, 1E64, 1E63, 1E62, 1OGJ, 1OGI, 1H42


• PubMed Abstract: 
  

The crystal structure of the ferredoxin:NADP+ reductase (FNR) from the cyanobacterium Anabaena PCC 7119 has been determined at 2.6 A resolution by multiple isomorphous replacement and refined using 15.0 A to 1.8 A data, collected at 4 degrees C, to an R-factor of 0.172. The model includes 303 residues, the flavin adenine dinucleotide cofactor (FAD), one sulfate ion located at the putative NADP+ binding site and 328 water molecule sites. The structure of Anabaena FNR, including FAD, a network of intrinsic water molecules and a large hydrophobic cavity in the C-terminal domain, resembles that of the spinach enzyme. The major differences concern the additional short alpha-helix (residues 172 to 177 in Anabaena FNR) and residues Arg 100 and Arg 233 which binds NADP+ instead of Lys 116 and Lys 244 in the spinach enzyme. Crystals of a complex of Anabaena FNR with NADP+ were obtained. The model of the complex has been refined using 15 A to 2.25 A X-ray data, collected at -170 degrees C, to an R-factor of 0.186. This model includes 295 residues, FAD, the full NADP+ (with an occupancy of 0.8) and 444 water molecules. The 2'-5' adenine moiety of NADP+ binds to the protein as 2'-phospho-5'-AMP to the spinach FNR. The nicotinamide moiety is turned towards the surface of the protein instead of stacking onto the FAD isoalloxazine ring as would be required for hydride transfer. The model of the complex agrees with previous biochemical studies as residues Arg 100 and Arg 233 are involved in NADP+ binding and residues Arg77, Lys 53 and Lys 294, located on the FAD side of the enzyme, remain free to interact with ferredoxin and flavodoxin, the physiological partners of ferredoxin: NADP reductase.

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Related Citations: 

• Crystals of Anabaena Pcc 7119 Ferredoxin-Nadp+ Reductase
  Serre, L.,Medina, M.,Gomez-Moreno, C.,Fontecilla-Camps, J.C.,Frey, M.
  (1991) J.Mol.Biol. 218: 271
• Sequence of the Ferredoxin-Nadp(+)-Reductase Gene from Anabaena Pcc 7119
  Fillat, M.F.,Bakker, H.A.,Weisbeek, P.J.
  (1990) Nucleic Acids Res. 18: 7161




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Organizational Affiliation: 

IBS/LCCP, Grenoble, France.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
FERREDOXIN-NADP+ REDUCTASE	A	304	Nostoc sp. (strain ATCC 29151 / PCC 7119)	Mutation(s): 0  Gene Names: petH EC: 1.18.1.2
Find proteins for P21890 (Nostoc sp. (strain ATCC 29151 / PCC 7119)) Go to UniProtKB:  P21890

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
FAD	A	FLAVIN-ADENINE DINUCLEOTIDE C27 H33 N9 O15 P2 VWWQXMAJTJZDQX-UYBVJOGSSA-N
NAP	A	NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE 2'-MONOPHOSPHOADENOSINE 5'-DIPHOSPHORIBOSE C21 H28 N7 O17 P3 XJLXINKUBYWONI-NNYOXOHSSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free: 0.265 
• R-Value Work: 0.186 
• Space Group: P 6₅

Unit Cell:

Length (Å)	Angle (°)
a = 85.840	α = 90.00
b = 85.840	β = 90.00
c = 97.610	γ = 120.00

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
XDS	data reduction
CCP4	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1996-09-07 
• Released Date: 1997-09-17 
• Deposition Author(s): Serre, L., Frey, M., Vellieux, F.M.D.

Revision History 

• Version 1.0: 1997-09-17
  Type: Initial release
• Version 1.1: 2008-03-24
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Source and taxonomy, Version format compliance