| Gene Symbol | KCA1A |
| Full Name | Potassium Calcium-Activated Channel Subfamily M Member 1 |
| Chromosome | 10p12 |
| Function | KCNMB1-4 (β1-4): Beta subunits that modify channel kinetics and pharmacology |
| Molecular Weight | 125 kDa |
| Amino Acids | 1000 aa |
| Exons | 26 |
| UniProt ID | [Q12791](https://www.uniprot.org/uniprot/Q12791) |
| Ensembl ID | ENSG00000156170 |
| GeneCards | KCA1A |
| Human Protein Atlas | KCA1A |
| KCNMB1-4 (β1-4) | Beta subunits that modify channel kinetics and pharmacology |
| KCNIP1-4 (γ1-4) | Gamma subunits that sense intracellular signaling molecules |
| Conductance | ~200-250 pS in physiological K+ gradients (among the largest K+ conductances) |
| Selectivity | Highly selective for K+ over Na+ and Ca2+ |
| Associated Diseases | Alzheimer's disease, Parkinson's disease |
| Databases | GeneCardsNCBI GeneHPASTRING |