5IXR
Crystal Structure of C139A nostoc H-NOX domain with imidazole
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) | Alr2278 protein | polymer | 182 | 20358.8 | 2 | UniProt (Q8YUQ7) Pfam (PF07700) | Nostoc sp. (strain PCC 7120 / UTEX 2576) | |
| 2 | C, F (A, B) | PROTOPORPHYRIN IX CONTAINING FE | non-polymer | 616.5 | 2 | Chemie (HEM) | |||
| 3 | D, G (A, B) | IMIDAZOLE | non-polymer | 69.1 | 2 | Chemie (IMD) | |||
| 4 | E, H (A, B) | MALONATE ION | non-polymer | 102.0 | 2 | Chemie (MLI) | |||
| 5 | I, J (A, B) | water | water | 18.0 | 35 | Chemie (HOH) |
Sequence modifications
A, B: 1 - 182 (UniProt: Q8YUQ7)
| PDB | External Database | Details |
|---|---|---|
| Ala 139 | Cys 139 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 40717.6 | |
| Non-Polymers* | Number of molecules | 6 |
| Total formula weight | 1575.2 | |
| All* | Total formula weight | 42292.8 |
