1U18
1.96 A Crystal structure of H60C mutant of nitrophorin complexed with histamine
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) | Nitrophorin 1 | polymer | 185 | 20607.1 | 2 | UniProt (Q26239) Pfam (PF02087) | Rhodnius prolixus | NP1 |
| 2 | C, F (A, B) | PHOSPHATE ION | non-polymer | 95.0 | 2 | Chemie (PO4) | |||
| 3 | D, G (A, B) | PROTOPORPHYRIN IX CONTAINING FE | non-polymer | 616.5 | 2 | Chemie (HEM) | |||
| 4 | E, H (A, B) | HISTAMINE | non-polymer | 111.1 | 2 | Chemie (HSM) | |||
| 5 | I, J (A, B) | water | water | 18.0 | 210 | Chemie (HOH) |
Sequence modifications
A, B: 2 - 185 (UniProt: Q26239)
| PDB | External Database | Details |
|---|---|---|
| Met 1 | - | initiating methionine |
| Cys 60 | His 82 | conflict |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 41214.1 | |
| Non-Polymers* | Number of molecules | 6 |
| Total formula weight | 1645.2 | |
| All* | Total formula weight | 42859.3 |
