1SLF
APOSTREPTAVIDIN, PH 5.6, TWO MOLECULES OF (SO4)2 BOUND AT THE BIOTIN BINDING SITE
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B (B, D) | STREPTAVIDIN | polymer | 135 | 14181.3 | 2 | UniProt (P22629) Pfam (PF01382) | Streptomyces avidinii | |
| 2 | C, D, E, F (B, D) | SULFATE ION | non-polymer | 96.1 | 4 | Chemie (SO4) | |||
| 3 | G, H (B, D) | water | water | 18.0 | 180 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 28362.6 | |
| Non-Polymers* | Number of molecules | 4 |
| Total formula weight | 384.3 | |
| All* | Total formula weight | 28746.9 |
