Entity
| Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| A, B | REGULATORY PROTEIN ASNC | polymer | 152 | 16978.7 | 2 | ESCHERICHIA COLI@PDBj | ||
| ASPARAGINE | non-polymer | 132.1 | 2 | |||||
| MAGNESIUM ION | non-polymer | 24.3 | 1 | |||||
| water | water | 18.0 | 135 |
