4BX5
cis-divalent streptavidin
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, C (A, C) | STREPTAVIDIN | polymer | 138 | 14343.2 | 2 | UniProt (P22629) Pfam (PF01382) | STREPTOMYCES AVIDINII | |
| 2 | B, D (B, D) | STREPTAVIDIN | polymer | 127 | 13281.3 | 2 | UniProt (P22629) Pfam (PF01382) | STREPTOMYCES AVIDINII | |
| 3 | E, F, H, I (A, C) | 1,2-ETHANEDIOL | non-polymer | 62.1 | 4 | Chemie (EDO) | |||
| 4 | G, J (B, D) | TETRAETHYLENE GLYCOL | non-polymer | 194.2 | 2 | Chemie (PG4) | |||
| 5 | K, L, M, N (A, B, C, D) | water | water | 18.0 | 517 | Chemie (HOH) |
Sequence modifications
A, C: 13 - 139 (UniProt: P22629)
| PDB | External Database | Details |
|---|---|---|
| Ala 23 | Asn 47 | engineered mutation |
| Asp 27 | Ser 51 | engineered mutation |
| Ala 45 | Ser 69 | engineered mutation |
| - | Asn 73 | deletion |
| Asp 48 | - | insertion |
| Asp 48 | - | insertion |
| Asp 48 | - | insertion |
| Gly 48 | - | insertion |
| Asp 48 | - | insertion |
| Asp 48 | - | insertion |
| Asp 48 | - | insertion |
| Gly 48 | - | insertion |
| Asp 48 | - | insertion |
| Asp 48 | - | insertion |
| Asp 48 | - | insertion |
| Gly 49 | - | insertion |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 55249.0 | |
| Non-Polymers* | Number of molecules | 6 |
| Total formula weight | 636.7 | |
| All* | Total formula weight | 55885.7 |
