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 | Nitrogenase molybdenum-iron protein alpha chain | polymer | 490 | 55130.7 | 2 | UniProt (P07328) Pfam (PF00148) In PDB | Azotobacter vinelandii | Dinitrogenase,Nitrogenase component I |
2 | B, D | Nitrogenase molybdenum-iron protein beta chain | polymer | 522 | 59379.7 | 2 | UniProt (P07329) Pfam (PF11844) Pfam (PF00148) In PDB | Azotobacter vinelandii | Dinitrogenase,Nitrogenase component I |
3 | A, C | 3-HYDROXY-3-CARBOXY-ADIPIC ACID | non-polymer | 206.2 | 2 | Chemie (HCA) | |||
4 | A, C | iron-sulfur-molybdenum cluster with interstitial carbon | non-polymer | 787.5 | 2 | Chemie (ICS) | |||
5 | D, A, B, C | GLYCEROL | non-polymer | 92.1 | 15 | Chemie (GOL) | |||
6 | A, C | FE(8)-S(7) CLUSTER, OXIDIZED | non-polymer | 671.2 | 2 | Chemie (1CL) | |||
7 | B | CALCIUM ION | non-polymer | 40.1 | 2 | Chemie (CA) | |||
8 | D, B | 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL | non-polymer | 122.1 | 2 | Chemie (TRS) | |||
9 | 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 |