| F | F_UNCLASSIFIED | e7aizF1 | A: alpha arrays | X: Nitrogenase vanadium-iron protein delta chain (From Topology) | H: Nitrogenase vanadium-iron protein delta chain (From Topology) | T: Nitrogenase vanadium-iron protein delta chain | F: F_UNCLASSIFIED | ECOD (1.6) |
| C | F_UNCLASSIFIED | e7aizC1 | A: alpha arrays | X: Nitrogenase vanadium-iron protein delta chain (From Topology) | H: Nitrogenase vanadium-iron protein delta chain (From Topology) | T: Nitrogenase vanadium-iron protein delta chain | F: F_UNCLASSIFIED | ECOD (1.6) |
| E | F_UNCLASSIFIED | e7aizE1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Chelatase-like | F: F_UNCLASSIFIED | ECOD (1.6) |
| E | Oxidored_nitro_3rd | e7aizE3 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Chelatase-like | F: Oxidored_nitro_3rd | ECOD (1.6) |
| E | Oxidored_nitro_1st | e7aizE2 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Chelatase-like | F: Oxidored_nitro_1st | ECOD (1.6) |
| B | F_UNCLASSIFIED | e7aizB3 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Chelatase-like | F: F_UNCLASSIFIED | ECOD (1.6) |
| B | Oxidored_nitro_3rd | e7aizB1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Chelatase-like | F: Oxidored_nitro_3rd | ECOD (1.6) |
| B | Oxidored_nitro_1st | e7aizB2 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Chelatase-like | F: Oxidored_nitro_1st | ECOD (1.6) |
| D | F_UNCLASSIFIED | e7aizD2 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Chelatase-like | F: F_UNCLASSIFIED | ECOD (1.6) |
| D | Oxidored_nitro_3rd | e7aizD1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Chelatase-like | F: Oxidored_nitro_3rd | ECOD (1.6) |
| D | Oxidored_nitro_1st | e7aizD3 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Chelatase-like | F: Oxidored_nitro_1st | ECOD (1.6) |
| A | F_UNCLASSIFIED | e7aizA2 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Chelatase-like | F: F_UNCLASSIFIED | ECOD (1.6) |
| A | Oxidored_nitro_3rd | e7aizA1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Chelatase-like | F: Oxidored_nitro_3rd | ECOD (1.6) |
| A | Oxidored_nitro_1st | e7aizA3 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Chelatase-like | F: Oxidored_nitro_1st | ECOD (1.6) |