9JNC
Crystal Structure of SME-1 with improved electron density
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 | 275 | 30403.3 | 2 | UniProt (Q54488) Pfam (PF00144) Pfam (PF13354) UniProt (by SIFTS) (P52682) | Serratia marcescens | SME-1 |
| 2 | C (A) | TETRAETHYLENE GLYCOL | non-polymer | 194.2 | 1 | Chemie (PG4) | |||
| 3 | D (A) | PHOSPHATE ION | non-polymer | 95.0 | 1 | Chemie (PO4) | |||
| 4 | E, F (A, B) | water | water | 18.0 | 63 | Chemie (HOH) |
Sequence modifications
A, B: 24 - 291 (UniProt: Q54488)
| PDB | External Database | Details |
|---|---|---|
| Met 22 | - | initiating methionine |
| Gly 23 | - | expression tag |
| His 292 | - | expression tag |
| His 293 | - | expression tag |
| His 294 | - | expression tag |
| His 295 | - | expression tag |
| His 296 | - | expression tag |
| His 297 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 60806.6 | |
| Non-Polymers* | Number of molecules | 2 |
| Total formula weight | 289.2 | |
| All* | Total formula weight | 61095.8 |
