1FP4
CRYSTAL STRUCTURE OF THE ALPHA-H195Q MUTANT OF NITROGENASE
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 | 492 | 55353.0 | 2 | UniProt (P07328) Pfam (PF00148) | Azotobacter vinelandii | |
| 2 | B, D (B, D) | NITROGENASE MOLYBDENUM-IRON PROTEIN BETA CHAIN | polymer | 523 | 59535.9 | 2 | UniProt (P07329) Pfam (PF11844) Pfam (PF00148) | Azotobacter vinelandii | |
| 3 | E, I (A, C) | 3-HYDROXY-3-CARBOXY-ADIPIC ACID | non-polymer | 206.2 | 2 | Chemie (HCA) | |||
| 4 | F, J (A, C) | FE-MO-S CLUSTER | non-polymer | 775.4 | 2 | Chemie (CFM) | |||
| 5 | G, K (A, C) | FE-S CLUSTER | non-polymer | 703.3 | 2 | Chemie (CLP) | |||
| 6 | H, L (B, D) | CALCIUM ION | non-polymer | 40.1 | 2 | Chemie (CA) | |||
| 7 | M, N, O, P (A, B, C, D) | water | water | 18.0 | 433 | Chemie (HOH) |
Sequence modifications
A, C: 1 - 492 (UniProt: P07328)
| PDB | External Database | Details |
|---|---|---|
| Gln 195 | His 195 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 229777.8 | |
| Non-Polymers* | Number of molecules | 8 |
| Total formula weight | 3449.9 | |
| All* | Total formula weight | 233227.7 |
