1TM1
CRYSTAL STRUCTURE OF THE COMPLEX OF SUBTILISIN BPN' WITH CHYMOTRYPSIN INHIBITOR 2
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' precursor | polymer | 281 | 28381.4 | 1 | UniProt (P00782) Pfam (PF00082) | Bacillus amyloliquefaciens | Subtilisin Novo, Alkaline protease |
| 2 | B (I) | chymotrypsin inhibitor 2 | polymer | 64 | 7283.6 | 1 | GenBank (19005) Pfam (PF00280) UniProt (by SIFTS) (Q40059) | Hordeum vulgare subsp. vulgare (domesticated barley) | |
| 3 | C (E) | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 4 | D (E) | SODIUM ION | non-polymer | 23.0 | 1 | Chemie (NA) | |||
| 5 | E, F, G (E) | CITRIC ACID | non-polymer | 192.1 | 3 | Chemie (CIT) | |||
| 6 | H, I, J, K (E) | PENTAETHYLENE GLYCOL | non-polymer | 238.3 | 4 | Chemie (1PE) | |||
| 7 | L, M (E, I) | water | water | 18.0 | 511 | Chemie (HOH) |
Sequence modifications
E: 1 - 275 (UniProt: P00782)
I: 21 - 83 (GenBank: 19005)
| 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 |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 35665.0 | |
| Non-Polymers* | Number of molecules | 9 |
| Total formula weight | 1592.6 | |
| All* | Total formula weight | 37257.5 |
