3K1A: Insights into substrate binding at FeMo-cofactor in nitrogenase from the structure of an alpha-70Ile MoFe protein variant

PDB ID: 3K1ADownload
MMDB ID: 80127
PDB Deposition Date: 2009/9/26
Updated in MMDB: 2017/11
Experimental Method:
x-ray diffraction
Resolution: 2.23  Å
Source Organism:
Similar Structures:
Biological Unit for 3K1A: tetrameric; determined by author and by software (PISA)
Molecular Components in 3K1A
Label Count Molecule
Proteins (4 molecules)
2
Nitrogenase Molybdenum-iron Protein Alpha Chain
Molecule annotation
2
Nitrogenase Molybdenum-iron Protein Beta Chain
Molecule annotation
Chemicals and Non-standard biopolymers (8 molecules)
1
2
3-HYDROXY-3-CARBOXY-ADIPIC ACID3-HYDROXY-3-CARBOXY-ADIPIC ACID
2
2
FE(7)-MO-S(9)-N CLUSTERFE(7)-MO-S(9)-N CLUSTER
3
2
FE(8)-S(7) CLUSTERFE(8)-S(7) CLUSTER
4
2
CALCIUM IONCALCIUM ION
* Click molecule labels to explore molecular sequence information.
Citing MMDB
Madej T, Lanczycki CJ, Zhang D, Thiessen PA, Geer RC, Marchler-Bauer A, Bryant SH. " MMDB and VAST+: tracking structural similarities between macromolecular complexes. Nucleic Acids Res. 2014 Jan; 42(Database issue):D297-303