1FR6
REFINED CRYSTAL STRUCTURE OF BETA-LACTAMASE FROM CITROBACTER FREUNDII INDICATES A MECHANISM FOR BETA-LACTAM HYDROLYSIS
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B | BETA-LACTAMASE | polymer | 361 | 39755.3 | 2 | UniProt (Q46041) Pfam (PF00144) In PDB | Citrobacter freundii | |
| 2 | A, B | 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 | 2 | Chemie (AZR) | |||
| 3 | water | water | 18.0 | 370 | Chemie (HOH) |
Sequence modifications
A, B: 1 - 361 (UniProt: Q46041)
| PDB | External Database | Details |
|---|---|---|
| Ser 175 | Thr 195 | SEE REMARK 999 |
| Lys 176 | Thr 196 | SEE REMARK 999 |
| His 180 | Gln 200 | SEE REMARK 999 |
| Ile 228 | Val 248 | SEE REMARK 999 |
| Glu 253 | Lys 273 | SEE REMARK 999 |
| Val 278 | Leu 298 | SEE REMARK 999 |
| Ser 285 | Asn 305 | SEE REMARK 999 |
| Val 348 | Ala 368 | SEE REMARK 999 |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 79510.5 | |
| Non-Polymers* | Number of molecules | 2 |
| Total formula weight | 874.9 | |
| All* | Total formula weight | 80385.4 |
