1SWD
APO-CORE-STREPTAVIDIN IN COMPLEX WITH BIOTIN (TWO UNOCCUPIED BINDING SITES) AT PH 4.5
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B, C, D (A, B, C, D) | STREPTAVIDIN | polymer | 127 | 13281.3 | 4 | UniProt (P22629) Pfam (PF01382) | Streptomyces avidinii | CORE STREPTAVIDIN |
| 2 | E, F (A, D) | BIOTIN | non-polymer | 244.3 | 2 | Chemie (BTN) | |||
| 3 | G, H, I, J (A, B, C, D) | water | water | 18.0 | 234 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 53125.3 | |
| Non-Polymers* | Number of molecules | 2 |
| Total formula weight | 488.6 | |
| All* | Total formula weight | 53614.0 |
