1fp4

X-ray diffraction
2.5Å resolution

CRYSTAL STRUCTURE OF THE ALPHA-H195Q MUTANT OF NITROGENASE

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-139505 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Nitrogenase molybdenum-iron protein alpha chain Chains: A, C
Molecule details ›
Chains: A, C
Length: 492 amino acids
Theoretical weight: 55.35 KDa
Source organism: Azotobacter vinelandii
Expression system: Not provided
UniProt:
  • Canonical: P07328 (Residues: 1-492; Coverage: 100%)
Gene name: nifD
Sequence domains: Nitrogenase component 1 type Oxidoreductase
Structure domains: Nitrogenase molybdenum iron protein domain
Nitrogenase molybdenum-iron protein beta chain Chains: B, D
Molecule details ›
Chains: B, D
Length: 523 amino acids
Theoretical weight: 59.54 KDa
Source organism: Azotobacter vinelandii
Expression system: Not provided
UniProt:
  • Canonical: P07329 (Residues: 1-523; Coverage: 100%)
Gene name: nifK
Sequence domains:
Structure domains:

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU200
Spacegroup: P21
Unit cell:
a: 107.2Å b: 130.2Å c: 80.4Å
α: 90° β: 111.2° γ: 90°
R-values:
R R work R free
0.184 0.184 0.24
Expression system: Not provided