2ZQC
Aztreonam acyl-intermediate structure of class a beta-lactam Toho-1 E166A/R274N/R276N triple mutant
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A | Beta-lactamase Toho-1 | polymer | 262 | 28117.8 | 1 | UniProt (Q47066) Pfam (PF00144) Pfam (PF00905) Pfam (PF13354) In PDB | Escherichia coli | |
| 2 | A | SULFATE ION | non-polymer | 96.1 | 4 | Chemie (SO4) | |||
| 3 | A | 2-({[(1Z)-1-(2-amino-1,3-thiazol-4-yl)-2-oxo-2-{[(2S,3S)-1-oxo-3-(sulfoamino)butan-2-yl]amino}ethylidene]amino}oxy)-2-methylpropanoic acid | non-polymer | 437.4 | 1 | Chemie (AZR) | |||
| 4 | water | water | 18.0 | 410 | Chemie (HOH) |
Sequence modifications
A: 26 - 290 (UniProt: Q47066)
| PDB | External Database | Details |
|---|---|---|
| Ala 166 | Glu 169 | engineered mutation |
| Asn 274 | Arg 275 | engineered mutation |
| Asn 276 | Arg 277 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 28117.8 | |
| Non-Polymers* | Number of molecules | 5 |
| Total formula weight | 821.7 | |
| All* | Total formula weight | 28939.5 |
