1L2X
Atomic Resolution Crystal Structure of a Viral RNA Pseudoknot
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords | 
| 1 | A (A)  | RNA pseudoknot | polymer | 28 | 9245.5 | 1 | |||
| 2 | B, C, D, E, F... (A)  | MAGNESIUM ION | non-polymer | 24.3 | 6 | Chemie (MG) | |||
| 3 | H, I, J (A)  | SODIUM ION | non-polymer | 23.0 | 3 | Chemie (NA) | |||
| 4 | K (A)  | POTASSIUM ION | non-polymer | 39.1 | 1 | Chemie (K) | |||
| 5 | L (A)  | water | water | 18.0 | 180 | Chemie (HOH) | 
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 | 
| Total formula weight | 9245.5 | |
| Non-Polymers* | Number of molecules | 10 | 
| Total formula weight | 253.9 | |
| All* | Total formula weight | 9499.4 | 






