9JO4
Cryo-EM structure of human BKca channel-compound 51b complex
This is a non-PDB format compatible entry.
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) | Calcium-activated potassium channel subunit alpha-1 | polymer | 1114 | 125541.5 | 4 | UniProt (Q12791) Pfam (PF00520) Pfam (PF22614) Pfam (PF03493) Pfam (PF21014) | Homo sapiens (human) | BK channel,BKCA alpha,Calcium-activated potassium channel,subfamily M subunit alpha-1,K(VCA)alpha,KCa1.1,Maxi K channel,MaxiK,Slo-alpha,Slo1,Slowpoke homolog,Slo homolog,hSlo |
| 2 | E, FA, O, X (A, D, B, C) | 5-(5-morpholin-4-ylpentylamino)-2-[2,3,5,6-tetrakis(fluoranyl)-4-(trifluoromethyl)phenoxy]phenol | non-polymer | 496.4 | 4 | Chemie (A1L4F) | |||
| 3 | F, GA, P, Y (A, D, B, C) | MAGNESIUM ION | non-polymer | 24.3 | 4 | Chemie (MG) | |||
| 4 | AA, G, H, HA, IA... (C, A, D, B) | CALCIUM ION | non-polymer | 40.1 | 8 | Chemie (CA) | |||
| 5 | I, J, S (A, B) | POTASSIUM ION | non-polymer | 39.1 | 3 | Chemie (K) | |||
| 6 | BA, CA, DA, EA, JA... (C, D, A, B) | CHOLESTEROL HEMISUCCINATE | non-polymer | 486.7 | 16 | Chemie (Y01) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 502165.8 | |
| Non-Polymers* | Number of molecules | 35 |
| Total formula weight | 10308.4 | |
| All* | Total formula weight | 512474.3 |






