3FFQ
HCN2I 443-640 apo-state
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)  | Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 2 | polymer | 202 | 23628.1 | 2 | UniProt (O88703) Pfam (PF00027)  | Mus musculus (mouse) | Brain cyclic nucleotide-gated channel 2, BCNG-2, Hyperpolarization-activated cation channel 1, HAC-1 | 
| 2 | C, D, E, F, G... (A, B)  | BROMIDE ION | non-polymer | 79.9 | 9 | Chemie (BR) | |||
| 3 | L, M (A, B)  | water | water | 18.0 | 71 | Chemie (HOH) | 
Sequence modifications
A, B: 443 - 640 (UniProt: O88703)
| PDB | External Database | Details | 
|---|---|---|
| Gly 439 | - | expression tag | 
| Ser 440 | - | expression tag | 
| Ala 441 | - | expression tag | 
| Met 442 | - | expression tag | 
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 | 
| Total formula weight | 47256.2 | |
| Non-Polymers* | Number of molecules | 9 | 
| Total formula weight | 719.1 | |
| All* | Total formula weight | 47975.3 | 






