5SVQ
Crystal structure of the ATP-gated human P2X3 ion channel bound to competitive antagonist TNP-ATP
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A | P2X purinoceptor 3 | polymer | 363 | 40745.9 | 1 | UniProt (P56373) Pfam (PF00864) In PDB | Homo sapiens (Human) | P2X3,ATP receptor,Purinergic receptor |
| 2 | A | 2-acetamido-2-deoxy-beta-D-glucopyranose | non-polymer | 221.2 | 3 | Chemie (NAG) | |||
| 3 | A | SODIUM ION | non-polymer | 23.0 | 1 | Chemie (NA) | |||
| 4 | A | MAGNESIUM ION | non-polymer | 24.3 | 1 | Chemie (MG) | |||
| 5 | A | SPIRO(2,4,6-TRINITROBENZENE[1,2A]-2O',3O'-METHYLENE-ADENINE-TRIPHOSPHATE | non-polymer | 718.3 | 1 | Chemie (128) | |||
| 6 | water | water | 18.0 | 2 | Chemie (HOH) |
Sequence modifications
A: 6 - 364 (UniProt: P56373)
| PDB | External Database | Details |
|---|---|---|
| Gly 2 | - | expression tag |
| Ser 3 | - | expression tag |
| Arg 4 | - | expression tag |
| Ala 5 | - | expression tag |
| Pro 13 | Thr 13 | engineered mutation |
| Val 15 | Ser 15 | engineered mutation |
| Ile 16 | Val 16 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 40745.9 | |
| Non-Polymers* | Number of molecules | 6 |
| Total formula weight | 1429.2 | |
| All* | Total formula weight | 42175.1 |
