1LW6
Crystal Structure of the Complex of Subtilisin BPN' with Chymotrypsin Inhibitor 2 at 1.5 Angstrom Resolution
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (E) | SUBTILISIN BPN' | polymer | 281 | 28381.4 | 1 | UniProt (P00782) Pfam (PF00082) | Bacillus amyloliquefaciens | Subtilisin Novo, Alkaline protease |
| 2 | B (I) | SUBTILISIN-CHYMOTRYPSIN INHIBITOR-2A | polymer | 64 | 7255.6 | 1 | UniProt (P01053) Pfam (PF00280) | Hordeum vulgare | CI-2A |
| 3 | C (E) | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 4 | D, E, F, G (E) | SULFATE ION | non-polymer | 96.1 | 4 | Chemie (SO4) | |||
| 5 | H, I (E, I) | water | water | 18.0 | 505 | Chemie (HOH) |
Sequence modifications
E: 1 - 275 (UniProt: P00782)
I: 21 - 83 (UniProt: P01053)
| PDB | External Database | Details |
|---|---|---|
| His 276 | - | expression tag |
| His 277 | - | expression tag |
| His 278 | - | expression tag |
| His 279 | - | expression tag |
| His 280 | - | expression tag |
| His 281 | - | expression tag |
| PDB | External Database | Details |
|---|---|---|
| Met 20 | - | initiating methionine |
| Ala 45 | Glu 45 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 35637.0 | |
| Non-Polymers* | Number of molecules | 5 |
| Total formula weight | 424.3 | |
| All* | Total formula weight | 36061.3 |
