4TPI
THE REFINED 2.2-ANGSTROMS (0.22-NM) X-RAY CRYSTAL STRUCTURE OF THE TERNARY COMPLEX FORMED BY BOVINE TRYPSINOGEN, VALINE-VALINE AND THE ARG15 ANALOGUE OF BOVINE PANCREATIC 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 (Z) | TRYPSINOGEN | polymer | 229 | 24013.0 | 1 | UniProt (P00760) Pfam (PF00089) | Bos taurus (cattle) | |
| 2 | B (I) | BOVINE PANCREATIC TRYPSIN INHIBITOR | polymer | 58 | 6555.6 | 1 | UniProt (P00974) Pfam (PF00014) | ||
| 3 | C, D (Z) | VALINE | non-polymer | 117.1 | 2 | Chemie (VAL) | |||
| 4 | E (Z) | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 5 | F, G (I) | SULFATE ION | non-polymer | 96.1 | 2 | Chemie (SO4) | |||
| 6 | H, I (Z, I) | water | water | 18.0 | 155 | Chemie (HOH) |
Sequence modifications
I: 1 - 58 (UniProt: P00974)
| PDB | External Database | Details |
|---|---|---|
| Arg 15 | Lys 50 | conflict |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 30568.5 | |
| Non-Polymers* | Number of molecules | 5 |
| Total formula weight | 466.5 | |
| All* | Total formula weight | 31035.0 |
