1SWS
CORE-STREPTAVIDIN MUTANT D128A 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 | PROTEIN (STREPTAVIDIN) | polymer | 127 | 13237.3 | 4 | UniProt (SAV_STRAV) Pfam (PF01382) UniProt (by SIFTS) (P22629) In PDB | Streptomyces avidinii | |
| 2 | water | water | 18.0 | 178 | Chemie (HOH) |
Sequence modifications
A, B, C, D: 13 - 139 (UniProt: null)
| PDB | External Database | Details |
|---|---|---|
| Ala 128 | Asp 152 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 52949.3 | |
| All* | Total formula weight | 52949.3 |
