4FNI
Crystal structure of IsdI-W66Y in complex with heme and cyanide
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B | Heme-degrading monooxygenase isdI | polymer | 110 | 12992.4 | 2 | UniProt (Q7A827) Pfam (PF03992) In PDB | Staphylococcus aureus subsp. aureus | Heme oxygenase, Iron-regulated surface determinant isdI, Iron-responsive surface determinant isdI |
| 2 | A, B | PROTOPORPHYRIN IX CONTAINING FE | non-polymer | 616.5 | 2 | Chemie (HEM) | |||
| 3 | A, B | CYANIDE ION | non-polymer | 26.0 | 2 | Chemie (CYN) | |||
| 4 | B | MAGNESIUM ION | non-polymer | 24.3 | 1 | Chemie (MG) | |||
| 5 | water | water | 18.0 | 338 | Chemie (HOH) |
Sequence modifications
A, B: 1 - 108 (UniProt: Q7A827)
| PDB | External Database | Details |
|---|---|---|
| Ala -1 | - | expression tag |
| His 0 | - | expression tag |
| Tyr 66 | Trp 66 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 25984.7 | |
| Non-Polymers* | Number of molecules | 5 |
| Total formula weight | 1309.3 | |
| All* | Total formula weight | 27294.0 |
