Brand  (β version)

PDB ID: 2AFI

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Ligands
Code Name Style Show Link
HCA 3-hydroxy-3-carboxy-adipic acid PoSSuM
CFN Fe(7)-mo-S(9)-N cluster PoSSuM
CA Calcium ion PoSSuM
CLF Fe(8)-S(7) cluster PoSSuM
MG Magnesium ion PoSSuM
ADP Adenosine-5'-diphosphate PoSSuM
SF4 Iron/sulfur cluster PoSSuM
Non-standard Residues
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Glycosylation
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Structure summary

Code : 2AFI   PDBj   RCSB PDB   PDBe
Header : OXIDOREDUCTASE
Title : Crystal Structure of MgADP bound Av2-Av1 Complex
Release Data : 2005-09-06
Compound :
mol_id molecule chains synonym
1 Nitrogenase molybdenum-iron protein A,C,I,K Nitrogenase component I, Dinitrogenase
ec: 1.18.6.1
other_details: alpha chain
mol_id molecule chains synonym
2 Nitrogenase molybdenum-iron protein B,D,J,L Nitrogenase component I, Dinitrogenase
ec: 1.18.6.1
other_details: beta chain
mol_id molecule chains synonym
3 Nitrogenase iron protein 1 E,F,G,H,M,N,O,P Nitrogenase component II, Nitrogenase Fe protein 1, Nitrogenase reductase
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 : Tezcan, F.A., Kaiser, J.T., Mustafi, D., Walton, M.Y., Howard, J.B., Rees, D.C.
Keywords : Nitrogen fixation, Iron-sulfur, Metal-binding, Molybdenum, oxidoreductase
Exp. method : X-RAY DIFFRACTION ( 3.10 Å )
Citation :

Nitrogenase Complexes: Multiple Docking Sites for a Nucleotide Switch Protein

Tezcan, F.A.,Kaiser, J.T.,Mustafi, D.  et al.
(2005)  Science  309 : 1377 - 1380

PubMed: 16123301
DOI: 10.1126/science.1115653

Reaction

Chain : A, C, I, K
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, J, L
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, M, N, O, P
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.