4XPI
Fe protein independent substrate reduction by nitrogenase variants altered in intramolecular electron transfer
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, C (A, C) | Nitrogenase molybdenum-iron protein alpha chain | polymer | 490 | 55130.7 | 2 | UniProt (P07328) Pfam (PF00148) | Azotobacter vinelandii | Dinitrogenase,Nitrogenase component I |
| 2 | B, D (B, D) | Nitrogenase molybdenum-iron protein beta chain | polymer | 522 | 59379.7 | 2 | UniProt (P07329) Pfam (PF11844) Pfam (PF00148) | Azotobacter vinelandii | Dinitrogenase,Nitrogenase component I |
| 3 | E, R (A, C) | 3-HYDROXY-3-CARBOXY-ADIPIC ACID | non-polymer | 206.2 | 2 | Chemie (HCA) | |||
| 4 | F, S (A, C) | iron-sulfur-molybdenum cluster with interstitial carbon | non-polymer | 787.5 | 2 | Chemie (ICS) | |||
| 5 | AA, CA, G, J, K... (D, A, B, C) | GLYCEROL | non-polymer | 92.1 | 15 | Chemie (GOL) | |||
| 6 | H, Z (A, C) | FE(8)-S(7) CLUSTER, OXIDIZED | non-polymer | 671.2 | 2 | Chemie (1CL) | |||
| 7 | I, Q (B) | CALCIUM ION | non-polymer | 40.1 | 2 | Chemie (CA) | |||
| 8 | BA, L (D, B) | 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL | non-polymer | 122.1 | 2 | Chemie (TRS) | |||
| 9 | DA, EA, FA, GA (A, B, C, D) | water | water | 18.0 | 921 | Chemie (HOH) |
Sequence modifications
B, D: 2 - 523 (UniProt: P07329)
| PDB | External Database | Details |
|---|---|---|
| His 98 | Tyr 98 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 229020.8 | |
| Non-Polymers* | Number of molecules | 25 |
| Total formula weight | 5035.5 | |
| All* | Total formula weight | 234056.3 |
