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Literature summary extracted from

  • Siemann, S.; Schneider, K.; Drottboom, M.; Muller, A.
    The Fe-only nitrogenase and the Mo nitrogenase from Rhodobacter capsulatus: a comparative study on the redox properties of the metal clusters present in the dinitrogenase components (2002), Eur. J. Biochem., 269, 1650-1661.
    View publication on PubMed

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
1.18.6.1 additional information redox properties of metal clusters Rhodobacter capsulatus

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
1.18.6.1 8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O Rhodobacter capsulatus
-
 8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate
-
 ?
1.18.6.1 8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O Rhodobacter capsulatus B10S
-
 8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate
-
 ?

Organism

EC Number Organism UniProt Comment Textmining
1.18.6.1 Rhodobacter capsulatus
-
-
-
1.18.6.1 Rhodobacter capsulatus
-
 nitrogen fixation complex is encoded on nif gene cluster
-
1.18.6.1 Rhodobacter capsulatus
-
 iron-only nitrogenase and molybdenum nitrogenase
-
1.18.6.1 Rhodobacter capsulatus B10S
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
1.18.6.1 molybdenum containing enzyme form, both components Rhodobacter capsulatus

Reaction

EC Number Reaction Comment Organism Reaction ID
1.18.6.1 4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate enzyme is composed of 2 metalloproteins: component I MoFe protein and component II Fe protein Rhodobacter capsulatus
a
1.18.6.1 4 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O = 4 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate iron-only enzyme is composed of 2 components: FeFe protein and Fe protein Rhodobacter capsulatus
a

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.18.6.1 2 reduced ferredoxin + 2 H+ + acetylene + 2 ATP + 2 H2O
-
 Rhodobacter capsulatus 2 oxidized ferredoxin + ethylene + 2 ADP + 2 phosphate
-
 ?
1.18.6.1 2 reduced ferredoxin + 2 H+ + acetylene + 2 ATP + 2 H2O
-
 Rhodobacter capsulatus B10S 2 oxidized ferredoxin + ethylene + 2 ADP + 2 phosphate
-
 ?
1.18.6.1 8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O
-
 Rhodobacter capsulatus 8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate
-
 ?
1.18.6.1 8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O
-
 Rhodobacter capsulatus B10S 8 oxidized ferredoxin + H2 + 2 NH3 + 16 ADP + 16 phosphate
-
 ?