1RXH
Crystal structure of streptavidin mutant L124R (M1) complexed with biotinyl p-nitroanilide (BNI)
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B (A, B) | Streptavidin | polymer | 127 | 13325.4 | 2 | UniProt (P22629) Pfam (PF01382) | Streptomyces avidinii | |
| 2 | C, D (A, B) | 5-(2-OXO-HEXAHYDRO-THIENO[3,4-D]IMIDAZOL-6-YL)-PENTANOIC ACID (4-NITRO-PHENYL)-AMIDE | non-polymer | 364.4 | 2 | Chemie (BNI) | |||
| 3 | E, F (A, B) | water | water | 18.0 | 16 | Chemie (HOH) |
Sequence modifications
A, B: 13 - 139 (UniProt: P22629)
| PDB | External Database | Details |
|---|---|---|
| Arg 124 | Leu 148 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 26650.7 | |
| Non-Polymers* | Number of molecules | 2 |
| Total formula weight | 728.8 | |
| All* | Total formula weight | 27379.6 |
