EC Number   |
Natural Substrates |
|---|
    1.18.6.1 | 2 reduced ferredoxin + 2 H+ + acetylene + 2 ATP + 2 H2O |
- |
| 1.18.6.1 | 8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O |
- |
| 1.18.6.1 | 8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O |
ferredoxin normally functions as immediate electron donor to nitrogenase, during iron starvation it is replaced by flavodoxin |
| 1.18.6.1 | 8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O |
regulation |
| 1.18.6.1 | 8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O |
biological N2 fixation |
| 1.18.6.1 | 8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O |
ferredoxin is the immediate electron carrier to nitrogenase in all nitrogen-fixing organisms with the exception of Klebsiella pneumoniae, and possibly Azotobacter species, where only flavodoxin is effective in coupling electron flow to nitrogenase |
| 1.18.6.1 | 8 reduced ferredoxin + 8 H+ + N2 + 16 ATP + 16 H2O |
overall reaction |
| 1.18.6.1 | hydrazine + reduced ferredoxin |
- |
| 1.18.6.1 | hydroxylamine + reduced ferredoxin |
- |
| 1.18.6.1 | more |
gene nifX and the contigous gene orf1 are essential for maximum nitrogen fixation under iron limitation and are probably involved in synthesis of nitrogenase iron or iron-molybdenum clusters |
