3VEQ
A binary complex betwwen bovine pancreatic trypsin and a engineered mutant trypsin inhibitor
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (B) | Cationic trypsin | polymer | 223 | 23294.3 | 1 | UniProt (P00760) Pfam (PF00089) | Bos taurus (bovine) | Beta-trypsin, Alpha-trypsin chain 1, Alpha-trypsin chain 2 |
| 2 | B (A) | Chymotrypsin inhibitor 3 | polymer | 183 | 20310.9 | 1 | UniProt (P10822) | Psophocarpus tetragonolobus (Goa bean) | WCI-3 |
| 3 | C (B) | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 4 | D, E (B, A) | water | water | 18.0 | 159 | Chemie (HOH) |
Sequence modifications
B: 16 - 238 (UniProt: P00760)
A: 604 - 786 (UniProt: P10822)
| PDB | External Database | Details |
|---|---|---|
| Val 118 | Ile 126 | engineered mutation |
| Ala 199 | Ser 207 | engineered mutation |
| PDB | External Database | Details |
|---|---|---|
| Arg 668 | Leu 89 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 43605.1 | |
| Non-Polymers* | Number of molecules | 1 |
| Total formula weight | 40.1 | |
| All* | Total formula weight | 43645.2 |
