6CNN
Cryo-EM structure of the human SK4/calmodulin channel complex in the Ca2+ bound state I
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B, C, D (A, B, C, D) | Intermediate conductance calcium-activated potassium channel protein 4 | polymer | 427 | 47758.5 | 4 | UniProt (O15554) Pfam (PF03530) Pfam (PF07885) Pfam (PF02888) | Homo sapiens (Human) | SK4 channel, SKCa4, IKCa1, IK1, KCa3.1, KCa4, Putative Gardos channel |
| 2 | E, F, G, H (E, F, G, H) | Calmodulin-1 | polymer | 149 | 16852.5 | 4 | UniProt (P0DP23) Pfam (PF13499) | Homo sapiens (Human) | |
| 3 | I, J, K, L (A) | POTASSIUM ION | non-polymer | 39.1 | 4 | Chemie (K) | |||
| 4 | M, P, S, V (A, B, C, D) | (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate | non-polymer | 760.1 | 4 | Chemie (POV) | |||
| 5 | N, O, Q, R, T... (A, B, C, D) | DODECYL-BETA-D-MALTOSIDE | non-polymer | 510.6 | 8 | Chemie (LMT) | |||
| 6 | AA, BA, CA, DA, EA... (E, F, G, H) | CALCIUM ION | non-polymer | 40.1 | 12 | Chemie (CA) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 8 |
| Total formula weight | 258444.2 | |
| Non-Polymers* | Number of molecules | 28 |
| Total formula weight | 7762.6 | |
| All* | Total formula weight | 266206.7 |
