3IWQ
X-ray crystal structure of the extended-spectrum AmpC E219K mutant beta-lactamase at 1.84 Angstrom resolution
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B (B, A) | Beta-lactamase | polymer | 358 | 39588.0 | 2 | UniProt (P00811) Pfam (PF00144) | Escherichia coli | Cephalosporinase |
| 2 | C, D (A) | PHOSPHATE ION | non-polymer | 95.0 | 2 | Chemie (PO4) | |||
| 3 | E, F (B, A) | water | water | 18.0 | 725 | Chemie (HOH) |
Sequence modifications
B, A: 4 - 361 (UniProt: P00811)
| PDB | External Database | Details |
|---|---|---|
| Lys 219 | Glu 235 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 79176.0 | |
| Non-Polymers* | Number of molecules | 2 |
| Total formula weight | 189.9 | |
| All* | Total formula weight | 79365.9 |
