EC Number |
Substrates |
Organism |
Products |
Reversibility |
---|
1.19.6.1 | 6 reduced flavodoxin + N2 + 6 H2O + 6 ATP |
- |
Klebsiella pneumoniae |
6 oxidized flavodoxin + 2 NH3 + 6 H+ + 6 ADP + 6 phosphate |
- |
? |
1.19.6.1 | 6 reduced flavodoxin + N2 + 6 H2O + 6 ATP |
- |
Azotobacter vinelandii |
6 oxidized flavodoxin + 2 NH3 + 6 H+ + 6 ADP + 6 phosphate |
- |
? |
1.19.6.1 | 6 reduced flavodoxin + N2 + 6 H2O + 6 ATP |
- |
Methanococcus maripaludis |
6 oxidized flavodoxin + 2 NH3 + 6 H+ + 6 ADP + 6 phosphate |
- |
? |
1.19.6.1 | 6 reduced flavodoxin + N2 + 6 H2O + 6 ATP |
- |
Azotobacter chroococcum |
6 oxidized flavodoxin + 2 NH3 + 6 H+ + 6 ADP + 6 phosphate |
- |
? |
1.19.6.1 | 6 reduced flavodoxin + N2 + 6 H2O + 6 ATP |
flavodoxin is not essential but required for maximum in vivo nitrogenase activity |
Azotobacter vinelandii |
6 oxidized flavodoxin + 2 NH3 + 6 H+ + 6 ADP + 6 phosphate |
- |
? |
1.19.6.1 | 6 reduced flavodoxin + N2 + 6 H2O + 6 ATP |
enzyme consists of 2 metalloproteins, Fe protein and MoFe protein, which are assumed to associate and dissociate to transfer a single electron to the substrates, termed Fe protein cycle, driven by MgATP hydrolysis, with the dissociation of the Fe protein-MoFe protein complex being the rate-limiting step of the cycle |
Azotobacter vinelandii |
6 oxidized flavodoxin + 2 NH3 + 6 H+ + 6 ADP + 6 phosphate |
i.e. flavodoxin semiquinone |
? |
1.19.6.1 | 6 reduced flavodoxin + N2 + 6 H2O + 6 ATP |
flavodoxin reduces the Fe protein of the enzyme |
Klebsiella pneumoniae |
6 oxidized flavodoxin + 2 NH3 + 6 H+ + 6 ADP + 6 phosphate |
- |
? |
1.19.6.1 | 6 reduced flavodoxin + N2 + 6 H2O + 6 ATP |
flavodoxin reduces the Fe protein of the enzyme |
Azotobacter vinelandii |
6 oxidized flavodoxin + 2 NH3 + 6 H+ + 6 ADP + 6 phosphate |
- |
? |
1.19.6.1 | 6 reduced flavodoxin + N2 + 6 H2O + 6 ATP |
highly specific for flavodoxin as electron donor |
Klebsiella pneumoniae |
6 oxidized flavodoxin + 2 NH3 + 6 H+ + 6 ADP + 6 phosphate |
- |
? |
1.19.6.1 | 6 reduced flavodoxin + N2 + 6 H2O + 6 ATP |
slow enzyme |
Klebsiella pneumoniae |
6 oxidized flavodoxin + 2 NH3 + 6 H+ + 6 ADP + 6 phosphate |
- |
? |