7tqf

X-ray diffraction
1.45Å resolution

Selenium-incorporated nitrogenase Fe protein (Av2-Se) from A. vinelandii (22 mM KSeCN)

Released:

Function and Biology Details

Reaction catalysed:
8 reduced ferredoxin + 8 H(+) + N(2) + 16 ATP + 16 H(2)O = 8 oxidized ferredoxin + H(2) + 2 NH(3) + 16 ADP + 16 phosphate
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Nitrogenase iron protein 1 Chain: A
Molecule details ›
Chain: A
Length: 290 amino acids
Theoretical weight: 31.55 KDa
Source organism: Azotobacter vinelandii
UniProt:
  • Canonical: P00459 (Residues: 1-290; Coverage: 100%)
Gene name: nifH1
Sequence domains: 4Fe-4S iron sulfur cluster binding proteins, NifH/frxC family

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL12-2
Unit cell:
a: 45.595Å b: 74.173Å c: 74.688Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.184 0.184 0.203