1U7G
Crystal Structure of Ammonia Channel AmtB from E. Coli
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | Probable ammonium transporter | polymer | 385 | 40435.0 | 1 | UniProt (P69681) Pfam (PF00909) | Escherichia coli | |
| 2 | B (A) | octyl beta-D-glucopyranoside | non-polymer | 292.4 | 1 | Chemie (BOG) | |||
| 3 | C (A) | AMMONIUM ION | non-polymer | 18.0 | 1 | Chemie (NH4) | |||
| 4 | D, E, F (A) | AMMONIA | non-polymer | 17.0 | 3 | Chemie (NH3) | |||
| 5 | G (A) | water | water | 18.0 | 426 | Chemie (HOH) |
Sequence modifications
A: 1 - 385 (UniProt: P69681)
| PDB | External Database | Details |
|---|---|---|
| Mse 13 | Met 35 | modified residue |
| Mse 14 | Met 36 | modified residue |
| Mse 23 | Met 45 | modified residue |
| Mse 44 | Met 66 | modified residue |
| Ser 68 | Phe 90 | engineered mutation |
| Mse 82 | Met 104 | modified residue |
| Mse 92 | Met 114 | modified residue |
| Pro 126 | Ser 148 | engineered mutation |
| Mse 146 | Met 168 | modified residue |
| Mse 200 | Met 222 | modified residue |
| Leu 255 | Lys 277 | engineered mutation |
| Mse 301 | Met 323 | modified residue |
| Mse 328 | Met 350 | modified residue |
| Mse 348 | Met 370 | modified residue |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 40435.0 | |
| Non-Polymers* | Number of molecules | 5 |
| Total formula weight | 361.5 | |
| All* | Total formula weight | 40796.5 |
