9O52 image
Deposition Date 2025-04-09
Release Date 2025-07-09
Last Version Date 2025-07-09
Entry Detail
PDB ID:
9O52
Keywords:
TRANSPORT PROTEIN/TOXIN
Title:
Cryo-EM structure of the human SK2-4 chimera/calmodulin channel complex bound to the bee toxin apamin
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Apis mellifera (Taxon ID: 7460)
Host Organism:
Homo sapiens
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
3.18 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
9O52 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Intermediate conductance calcium-activated potassium channel protein 4,Small conductance calcium-activated potassium channel protein 2 chimera
Gene (Uniprot):KCNN4, KCNN2
Chain IDs:A, B, C, D
Chain Length:435
Number of Molecules:4
Biological Source:Homo sapiens
UniProt ID:O15554,Q9H2S1 Pfam ID:PF03530, PF07885, PF02888
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Calmodulin-1
Gene (Uniprot):CALM1
Chain IDs:E, F, G, H
Chain Length:149
Number of Molecules:4
Biological Source:Homo sapiens
UniProt ID:P0DP23 Pfam ID:PF13499
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Apamin
Chain IDs:I
Chain Length:18
Number of Molecules:1
Biological Source:Apis mellifera
UniProt ID:P01500 Pfam ID:PF17454
Ligand Molecules
CA
K
Primary Citation
Mechanism of SK2 channel gating and its modulation by the bee toxin apamin and small molecules
To Be Published ? ? ? (?)
Primary Citation of related structures
9O48