3BTD
The Crystal Structures of the Complexes Between the Bovine Beta-Trypsin and Ten P1 Variants of BPTI.
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (E) | PROTEIN (TRYPSIN) | polymer | 223 | 23324.3 | 1 | UniProt (P00760) Pfam (PF00089) | Bos taurus (cattle) | |
| 2 | B (I) | PROTEIN (BOVINE PANCREATIC TRYPSIN INHIBITOR) | polymer | 58 | 6495.4 | 1 | UniProt (P00974) Pfam (PF00014) | Bos taurus (cattle) | |
| 3 | C (E) | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 4 | D, E, F, G (E, I) | SULFATE ION | non-polymer | 96.1 | 4 | Chemie (SO4) | |||
| 5 | H, I (E, I) | water | water | 18.0 | 141 | Chemie (HOH) |
Sequence modifications
I: 501 - 558 (UniProt: P00974)
| PDB | External Database | Details |
|---|---|---|
| Asp 515 | Lys 15 | engineered mutation |
| Leu 552 | Met 52 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 29819.7 | |
| Non-Polymers* | Number of molecules | 5 |
| Total formula weight | 424.3 | |
| All* | Total formula weight | 30244.1 |
