1RXJ
Crystal structure of streptavidin mutant (M2) where the L3,4 loop was replace by that of avidin
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 | 121 | 12881.0 | 4 | UniProt (P22629) Pfam (PF01382) | Streptomyces avidinii | |
| 2 | E, F, G, H (A, B, C, D) | 5-(2-OXO-HEXAHYDRO-THIENO[3,4-D]IMIDAZOL-6-YL)-PENTANOIC ACID (4-NITRO-PHENYL)-AMIDE | non-polymer | 364.4 | 4 | Chemie (BNI) | |||
| 3 | I, J, K, L (A, B, C, D) | water | water | 18.0 | 598 | Chemie (HOH) |
Sequence modifications
A, B, C, D: 15 - 135 (UniProt: P22629)
| PDB | External Database | Details |
|---|---|---|
| Ser 48 | 72 | SEE REMARK 999 |
| Ala 46 | 73 | SEE REMARK 999 |
| Thr 47 | 74 | SEE REMARK 999 |
| Ser 48 | Gly 75 | SEE REMARK 999 |
| Asn 49 | Asn 76 | SEE REMARK 999 |
| Glu 50 | Ala 77 | SEE REMARK 999 |
| Ile 51 | Glu 78 | SEE REMARK 999 |
| Lys 52 | Ser 79 | SEE REMARK 999 |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 51524.1 | |
| Non-Polymers* | Number of molecules | 4 |
| Total formula weight | 1457.7 | |
| All* | Total formula weight | 52981.7 |
