3U7Q image
Deposition Date 2011-10-14
Release Date 2011-12-07
Last Version Date 2023-09-13
Entry Detail
PDB ID:
3U7Q
Keywords:
OXIDOREDUCTASE
Title:
A. vinelandii nitrogenase MoFe protein at atomic resolution
Biological Source:
Source Organism:
Azotobacter vinelandii (Taxon ID: 354)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.00 Å
R-Value Free:
0.14
R-Value Work:
0.12
R-Value Observed:
0.12
Space Group:
P 1 21 1
3U7Q validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Nitrogenase molybdenum-iron protein alpha chain
Gene (Uniprot):nifD
Chain IDs:A, C
Chain Length:492
Number of Molecules:2
Biological Source:Azotobacter vinelandii
UniProt ID:P07328 Pfam ID:PF00148 EC:1.18.6.1
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Nitrogenase molybdenum-iron protein beta chain
Gene (Uniprot):nifK
Chain IDs:B, D
Chain Length:523
Number of Molecules:2
Biological Source:Azotobacter vinelandii
UniProt ID:P07329 Pfam ID:PF11844, PF00148 EC:1.18.6.1
Ligand Molecules
1CL
CA
CLF
HCA
ICS
IMD
MG
Primary Citation
Evidence for interstitial carbon in nitrogenase FeMo cofactor.
Science 334 940 940 (2011)
PMID: 22096190 DOI: 10.1126/science.1214025

Abstact

The identity of the interstitial light atom in the center of the FeMo cofactor of nitrogenase has been enigmatic since its discovery. Atomic-resolution x-ray diffraction data and an electron spin echo envelope modulation (ESEEM) analysis now provide direct evidence that the ligand is a carbon species.

Legend

Protein

Chemical

Disease

Primary Citation of related structures
1M1N
1MIN