1P6B
X-ray structure of phosphotriesterase, triple mutant H254G/H257W/L303T
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B | Parathion hydrolase | polymer | 336 | 36330.3 | 2 | UniProt (P0A433) Pfam (PF02126) In PDB | Flavobacterium sp. | Phosphotriesterase, PTE |
| 2 | A, B | ZINC ION | non-polymer | 65.4 | 6 | Chemie (ZN) | |||
| 3 | A, B | DIETHYL 4-METHYLBENZYLPHOSPHONATE | non-polymer | 242.3 | 2 | Chemie (EBP) | |||
| 4 | B | ETHYL DIHYDROGEN PHOSPHATE | non-polymer | 126.0 | 1 | Chemie (EFS) | |||
| 5 | water | water | 18.0 | 378 | Chemie (HOH) |
Sequence modifications
A, B: 30 - 365 (UniProt: P0A433)
| PDB | External Database | Details |
|---|---|---|
| Gly 254 | His 254 | engineered mutation |
| Trp 257 | His 257 | engineered mutation |
| Thr 303 | Leu 303 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 72660.6 | |
| Non-Polymers* | Number of molecules | 9 |
| Total formula weight | 1003.0 | |
| All* | Total formula weight | 73663.6 |
