7ZOF
Streptavidin Iron-Porphyrin
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 | Streptavidin | polymer | 158 | 16364.7 | 4 | UniProt (P22629) Pfam (PF01382) In PDB | Streptomyces avidinii | |
2 | A, B | (2R)-2-[5-[(3aS,4S,6aR)-2-oxidanylidene-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]pentanoylamino]-3-[[(5Z,10Z,14Z,19Z)-15-[[[(2R)-2-[5-[(3aS,4S,6aR)-2-oxidanylidene-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]pentanoylamino]-3-sulfo-propanoyl]amino]methyl]-1,4,21,23-tetrahydroporphyrin-5-yl]methylamino]-3-oxidanylidene-propane-1-sulfonic acid | non-polymer | 1125.3 | 2 | Chemie (JLL) | |||
3 | A, B, C, D | IMIDAZOLE | non-polymer | 69.1 | 4 | Chemie (IMD) | |||
4 | C, D | FE (III) ION | non-polymer | 55.8 | 2 | Chemie (FE) | |||
5 | water | water | 18.0 | 139 | Chemie (HOH) |
Sequence modifications
A, B, C, D: 14 - 159 (UniProt: P22629)
PDB | External Database | Details |
---|---|---|
Ala 2 | - | expression tag |
Ser 3 | - | expression tag |
Met 4 | - | expression tag |
Thr 5 | - | expression tag |
Gly 6 | - | expression tag |
Gly 7 | - | expression tag |
Gln 8 | - | expression tag |
Gln 9 | - | expression tag |
Met 10 | - | expression tag |
Gly 11 | - | expression tag |
Arg 12 | - | expression tag |
Asp 13 | - | expression tag |
Ala 112 | Ser 136 | engineered mutation |
Ala 121 | Lys 145 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
Polymers | Number of chains | 4 |
Total formula weight | 65458.9 | |
Non-Polymers* | Number of molecules | 8 |
Total formula weight | 2638.7 | |
All* | Total formula weight | 68097.6 |