| Chain | GOid | namespace | contents |
| A | 0000166 | molecular_function | nucleotide binding |
| A | 0005524 | molecular_function | ATP binding |
| A | 0009399 | biological_process | nitrogen fixation |
| A | 0016163 | molecular_function | nitrogenase activity |
| A | 0016491 | molecular_function | oxidoreductase activity |
| A | 0016612 | cellular_component | molybdenum-iron nitrogenase complex |
| A | 0046872 | molecular_function | metal ion binding |
| A | 0051536 | molecular_function | iron-sulfur cluster binding |
| B | 0000166 | molecular_function | nucleotide binding |
| B | 0005524 | molecular_function | ATP binding |
| B | 0009399 | biological_process | nitrogen fixation |
| B | 0016163 | molecular_function | nitrogenase activity |
| B | 0016491 | molecular_function | oxidoreductase activity |
| B | 0016612 | cellular_component | molybdenum-iron nitrogenase complex |
| B | 0046872 | molecular_function | metal ion binding |
| B | 0051536 | molecular_function | iron-sulfur cluster binding |
| C | 0000166 | molecular_function | nucleotide binding |
| C | 0005524 | molecular_function | ATP binding |
| C | 0009399 | biological_process | nitrogen fixation |
| C | 0016163 | molecular_function | nitrogenase activity |
| C | 0016491 | molecular_function | oxidoreductase activity |
| C | 0016612 | cellular_component | molybdenum-iron nitrogenase complex |
| C | 0046872 | molecular_function | metal ion binding |
| C | 0051536 | molecular_function | iron-sulfur cluster binding |
| D | 0000166 | molecular_function | nucleotide binding |
| D | 0005524 | molecular_function | ATP binding |
| D | 0009399 | biological_process | nitrogen fixation |
| D | 0016163 | molecular_function | nitrogenase activity |
| D | 0016491 | molecular_function | oxidoreductase activity |
| D | 0016612 | cellular_component | molybdenum-iron nitrogenase complex |
| D | 0046872 | molecular_function | metal ion binding |
| D | 0051536 | molecular_function | iron-sulfur cluster binding |
| E | 0000166 | molecular_function | nucleotide binding |
| E | 0005524 | molecular_function | ATP binding |
| E | 0009399 | biological_process | nitrogen fixation |
| E | 0016163 | molecular_function | nitrogenase activity |
| E | 0016491 | molecular_function | oxidoreductase activity |
| E | 0046872 | molecular_function | metal ion binding |
| E | 0051536 | molecular_function | iron-sulfur cluster binding |
| E | 0051539 | molecular_function | 4 iron, 4 sulfur cluster binding |
| F | 0000166 | molecular_function | nucleotide binding |
| F | 0005524 | molecular_function | ATP binding |
| F | 0009399 | biological_process | nitrogen fixation |
| F | 0016163 | molecular_function | nitrogenase activity |
| F | 0016491 | molecular_function | oxidoreductase activity |
| F | 0046872 | molecular_function | metal ion binding |
| F | 0051536 | molecular_function | iron-sulfur cluster binding |
| F | 0051539 | molecular_function | 4 iron, 4 sulfur cluster binding |