3M7Q
Crystal structure of recombinant Kunitz Type serine protease Inhibitor-1 from the Caribbean sea anemone stichodactyla helianthus in complex with bovine pancreatic trypsin
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 cow domestic cattle domestic cow) | Beta-trypsin, Alpha-trypsin chain 1, Alpha-trypsin chain 2 |
| 2 | B (B) | Kunitz-type proteinase inhibitor SHPI-1 | polymer | 61 | 6695.6 | 1 | UniProt (P31713) Pfam (PF00014) | Stichodactyla helianthus (Carribean sea anemone) | |
| 3 | C (A) | PHOSPHATE ION | non-polymer | 95.0 | 1 | Chemie (PO4) | |||
| 4 | D, E (A, B) | water | water | 18.0 | 526 | Chemie (HOH) |
Sequence modifications
B: 1 - 55 (UniProt: P31713)
| PDB | External Database | Details |
|---|---|---|
| Glu -3 | - | expression tag |
| Ala -2 | - | expression tag |
| Glu -1 | - | expression tag |
| Ala 0 | - | expression tag |
| Leu 56 | - | expression tag |
| Gly 57 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 30019.9 | |
| Non-Polymers* | Number of molecules | 1 |
| Total formula weight | 95.0 | |
| All* | Total formula weight | 30114.8 |
