2F91
1.2A resolution structure of a crayfish trypsin complexed with a peptide inhibitor, SGTI
Replaces: 1YR4Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | hepatopancreas trypsin | polymer | 237 | 25072.4 | 1 | UniProt (Q52V24) Pfam (PF00089) | Pontastacus leptodactylus (narrow-clawed crayfish) | |
| 2 | B (B) | Serine protease inhibitor I/II | polymer | 35 | 3828.3 | 1 | UniProt (O46162) Pfam (PF05375) | SCHISTOCERCA GREGARIA TRYPSIN INHIBITOR, SGTI | |
| 3 | C, D, E, F, G... (A) | CADMIUM ION | non-polymer | 112.4 | 6 | Chemie (CD) | |||
| 4 | I, J (A) | CHLORIDE ION | non-polymer | 35.5 | 2 | Chemie (CL) | |||
| 5 | K, L (A, B) | water | water | 18.0 | 343 | Chemie (HOH) |
Sequence modifications
A: 16 - 244 (UniProt: Q52V24)
| PDB | External Database | Details |
|---|---|---|
| Val 59 | Ala 47 | variant |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 28900.7 | |
| Non-Polymers* | Number of molecules | 8 |
| Total formula weight | 745.4 | |
| All* | Total formula weight | 29646.1 |
