3IWO
X-ray crystal structure of the extended-spectrum AmpC Y221G mutant beta-lactamase at 1.90 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 (A, B) | Beta-lactamase | polymer | 358 | 39481.8 | 2 | UniProt (P00811) Pfam (PF00144) | Escherichia coli | Cephalosporinase |
| 2 | C, D, E (C, D, E) | beta-D-fructofuranose-(2-1)-alpha-D-glucopyranose | branched | 342.3 | 3 | In PDB BIRD (PRD_900003) | sucrose | ||
| 3 | F (A) | PHOSPHATE ION | non-polymer | 95.0 | 1 | Chemie (PO4) | |||
| 4 | G, H (A, B) | water | water | 18.0 | 637 | Chemie (HOH) |
Sequence modifications
A, B: 4 - 361 (UniProt: P00811)
| PDB | External Database | Details |
|---|---|---|
| Gly 221 | Tyr 237 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 78963.6 | |
| Branched | Number of molecules | 3 |
| Total formula weight | 1026.9 | |
| Non-Polymers* | Number of molecules | 1 |
| Total formula weight | 95.0 | |
| All* | Total formula weight | 80085.5 |
