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Ligands
Code Name Link
CA Calcium ion
CFM Fe-mo-S cluster
CLF Fe(8)-S(7) cluster
HCA 3-hydroxy-3-carboxy-adipic acid
SF4 Iron/sulfur cluster
Code : 1G20   PDBj   RCSB PDB   PDBe
Header : OXIDOREDUCTASE
Title : MGATP-BOUND AND NUCLEOTIDE-FREE STRUCTURES OF A NITROGENASE PROTEIN COMPLEX BETWEEN LEU127DEL-FE PROTEIN AND THE MOFE PROTEIN
Release Data : 2001-01-31
Compound :
mol_id molecule chains synonym
1 NITROGENASE MOLYBDENUM-IRON PROTEIN ALPHA CHAIN A,C NITROGENASE COMPONENT I, DINITROGENASE, NIFD
ec: 1.18.6.1
mol_id molecule chains synonym
2 NITROGENASE MOLYBDENUM-IRON PROTEIN BETA CHAIN B,D NITROGENASE COMPONENT I, DINITROGENASE, NIFK
ec: 1.18.6.1
mol_id molecule chains synonym
3 NITROGENASE IRON PROTEIN E,F,G,H NITROGENASE COMPONENT II, NITROGENASE REDUCTASE, NIFH
ec: 1.18.6.1
Source :
mol_id organism_scientific
1 Azotobacter vinelandii  (taxid:354)
mol_id organism_scientific
2 Azotobacter vinelandii  (taxid:354)
mol_id organism_scientific
3 Azotobacter vinelandii  (taxid:354)
Authors : Chiu, H.-J., Peters, J.W., Lanzilotta, W.N., Ryle, M.J., Seefeldt, L.C., Howard, J.B., Rees, D.C.
Keywords : nitrogen-fixation, Fe protein, MoFe protein, P-cluster and FeMo cofactor, OXIDOREDUCTASE
Exp. method : X-RAY DIFFRACTION ( 2.20 Å )
Citation :

MgATP-Bound and nucleotide-free structures of a nitrogenase protein complex between the Leu 127 Delta-Fe-protein and the MoFe-protein.

Chiu, H.,Peters, J.W.,Lanzilotta, W.N.  et al.
(2001)  Biochemistry  40 : 641 - 650

PubMed: 11170380
DOI: 10.1021/bi001645e

Chain : A, C
UniProt : P07328 (NIFD_AZOVI)
Reaction : Reaction=16 ATP + 16 H2O + N2 + 8 reduced [2Fe-2S]-[ferredoxin] = 16 ADP + 6 H(+) + H2 + 2 NH4(+) + 8 oxidized [2Fe-2S]-[ferredoxin] + 16 phosphate; Xref=Rhea:RHEA:21448, Rhea:RHEA-COMP:10000, Rhea:RHEA- COMP:10001, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:17997, ChEBI:CHEBI:18276, ChEBI:CHEBI:28938, ChEBI:CHEBI:30616, ChEBI:CHEBI:33737, ChEBI:CHEBI:33738, ChEBI:CHEBI:43474, ChEBI:CHEBI:456216; EC=1.18.6.1;
Chain : B, D
UniProt : P07329 (NIFK_AZOVI)
Reaction : Reaction=16 ATP + 16 H2O + N2 + 8 reduced [2Fe-2S]-[ferredoxin] = 16 ADP + 6 H(+) + H2 + 2 NH4(+) + 8 oxidized [2Fe-2S]-[ferredoxin] + 16 phosphate; Xref=Rhea:RHEA:21448, Rhea:RHEA-COMP:10000, Rhea:RHEA- COMP:10001, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:17997, ChEBI:CHEBI:18276, ChEBI:CHEBI:28938, ChEBI:CHEBI:30616, ChEBI:CHEBI:33737, ChEBI:CHEBI:33738, ChEBI:CHEBI:43474, ChEBI:CHEBI:456216; EC=1.18.6.1;
Chain : E, F, G, H
UniProt : P00459 (NIFH1_AZOVI)
Reaction : Reaction=16 ATP + 16 H2O + N2 + 8 reduced [2Fe-2S]-[ferredoxin] = 16 ADP + 6 H(+) + H2 + 2 NH4(+) + 8 oxidized [2Fe-2S]-[ferredoxin] + 16 phosphate; Xref=Rhea:RHEA:21448, Rhea:RHEA-COMP:10000, Rhea:RHEA- COMP:10001, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:17997, ChEBI:CHEBI:18276, ChEBI:CHEBI:28938, ChEBI:CHEBI:30616, ChEBI:CHEBI:33737, ChEBI:CHEBI:33738, ChEBI:CHEBI:43474, ChEBI:CHEBI:456216; EC=1.18.6.1;