2O9Q
The crystal structure of Bovine Trypsin complexed with a small inhibition peptide ORB2K
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 (cattle) | Beta-trypsin | 
| 2 | B (C) | ORB2K | polymer | 17 | 1894.3 | 1 | |||
| 3 | C (A) | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 4 | D, E, F (A) | SULFATE ION | non-polymer | 96.1 | 3 | Chemie (SO4) | |||
| 5 | G, H (A, C) | water | water | 18.0 | 310 | Chemie (HOH) | 
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 | 
| Total formula weight | 25218.6 | |
| Non-Polymers* | Number of molecules | 4 | 
| Total formula weight | 328.3 | |
| All* | Total formula weight | 25546.9 | 











