3RXF
Crystal structure of Trypsin complexed with 4-aminopyridine
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | Cationic trypsin | polymer | 223 | 23324.3 | 1 | UniProt (P00760) Pfam (PF00089) | Bos taurus (bovine) | Beta-trypsin, Alpha-trypsin chain 1, Alpha-trypsin chain 2 |
| 2 | B (A) | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 3 | C, D, E (A) | GLYCEROL | non-polymer | 92.1 | 3 | Chemie (GOL) | |||
| 4 | F, G, H (A) | DIMETHYL SULFOXIDE | non-polymer | 78.1 | 3 | Chemie (DMS) | |||
| 5 | I (A) | 4-AMINOPYRIDINE | non-polymer | 95.1 | 1 | Chemie (4AP) | |||
| 6 | J (A) | water | water | 18.0 | 349 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 23324.3 | |
| Non-Polymers* | Number of molecules | 8 |
| Total formula weight | 645.9 | |
| All* | Total formula weight | 23970.2 |
