1XQE
The mechanism of ammonia transport based on the crystal structure of AmtB of 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 | 418 | 43622.8 | 1 | UniProt (P69681) Pfam (PF00909) | Escherichia coli | Ammonia Transporter |
| 2 | B, C, D (A) | SULFATE ION | non-polymer | 96.1 | 3 | Chemie (SO4) | |||
| 3 | E (A) | ACETATE ION | non-polymer | 59.0 | 1 | Chemie (ACT) | |||
| 4 | F (A) | water | water | 18.0 | 93 | Chemie (HOH) |
Sequence modifications
A: 1 - 406 (UniProt: P69681)
| PDB | External Database | Details |
|---|---|---|
| Asp 407 | - | cloning artifact |
| Gln 408 | - | cloning artifact |
| Ala 409 | - | cloning artifact |
| Gln 410 | - | cloning artifact |
| Gln 411 | - | cloning artifact |
| Pro 412 | - | cloning artifact |
| Ala 413 | - | cloning artifact |
| Gln 414 | - | cloning artifact |
| Ala 415 | - | cloning artifact |
| Asp 416 | - | cloning artifact |
| Leu 417 | - | cloning artifact |
| Glu 418 | - | cloning artifact |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 43622.8 | |
| Non-Polymers* | Number of molecules | 4 |
| Total formula weight | 347.2 | |
| All* | Total formula weight | 43970.1 |
