Brand  (β version)

PDB ID: 1G21

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Ligands
Code Name Style Show Link
ATP Adenosine-5'-triphosphate PoSSuM
CA Calcium ion PoSSuM
CFM Fe-mo-S cluster PoSSuM
CLF Fe(8)-S(7) cluster PoSSuM
HCA 3-hydroxy-3-carboxy-adipic acid PoSSuM
MG Magnesium ion PoSSuM
SF4 Iron/sulfur cluster PoSSuM
Non-standard Residues
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Glycosylation
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Structure summary

Code : 1G21   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, MoeFe protein, P-cluster, FeMo cofactor, 4Fe-4S, OXIDOREDUCTASE
Exp. method : X-RAY DIFFRACTION ( 3.0 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

Reaction

Chain : A, C
UniProt : P07328 (NIFD_AZOVI)
Reaction: EC: Evidence:
Physiological Direction:
N2 + 8 reduced [2Fe-2S]-[ferredoxin] + 16 ATP + 16 H2O = H2 + 8 oxidized [2Fe-2S]-[ferredoxin] + 2 NH4(+) + 16 ADP + 16 phosphate + 6 H(+) 1.18.6.1 -
-
Cofactor: Evidence: Note:
[8Fe-7S] cluster - Binds 1 [8Fe-7S] cluster per heterodimer.
[7Fe-Mo-9S-C-homocitryl] cluster - Binds 1 [7Fe-Mo-9S-C-homocitryl] cluster per subunit.
Chain : B, D
UniProt : P07329 (NIFK_AZOVI)
Reaction: EC: Evidence:
Physiological Direction:
N2 + 8 reduced [2Fe-2S]-[ferredoxin] + 16 ATP + 16 H2O = H2 + 8 oxidized [2Fe-2S]-[ferredoxin] + 2 NH4(+) + 16 ADP + 16 phosphate + 6 H(+) 1.18.6.1 -
-
Cofactor: Evidence: Note:
[8Fe-7S] cluster - Binds 1 [8Fe-7S] cluster per heterodimer.
Chain : E, F, G, H
UniProt : P00459 (NIFH1_AZOVI)
Reaction: EC: Evidence:
Physiological Direction:
N2 + 8 reduced [2Fe-2S]-[ferredoxin] + 16 ATP + 16 H2O = H2 + 8 oxidized [2Fe-2S]-[ferredoxin] + 2 NH4(+) + 16 ADP + 16 phosphate + 6 H(+) 1.18.6.1 -
-
Cofactor: Evidence: Note:
[4Fe-4S] cluster - Binds 1 [4Fe-4S] cluster per dimer.