4R9I
Crystal structure of cysteine proteinase inhibitor Serpin18 from Bombyx mori
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A | Serpin-18 | polymer | 378 | 42904.4 | 1 | UniProt (C0J8G7) Pfam (PF00079) In PDB | Bombyx mori (silkworm) | serine/cysteine proteinase inhibitor |
| 2 | A | SODIUM ION | non-polymer | 23.0 | 1 | Chemie (NA) | |||
| 3 | A | CITRATE ANION | non-polymer | 189.1 | 1 | Chemie (FLC) | |||
| 4 | A | BETA-MERCAPTOETHANOL | non-polymer | 78.1 | 1 | Chemie (BME) | |||
| 5 | water | water | 18.0 | 518 | Chemie (HOH) |
Sequence modifications
A: 21 - 392 (UniProt: C0J8G7)
| PDB | External Database | Details |
|---|---|---|
| His 15 | - | expression tag |
| His 16 | - | expression tag |
| His 17 | - | expression tag |
| His 18 | - | expression tag |
| His 19 | - | expression tag |
| Met 20 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 42904.4 | |
| Non-Polymers* | Number of molecules | 3 |
| Total formula weight | 290.2 | |
| All* | Total formula weight | 43194.7 |
