KCNN1
potassium calcium-activated channel subfamily N member 1
Summary
Action potentials in vertebrate neurons are followed by an afterhyperpolarization (AHP) that may persist for several seconds and may have profound consequences for the firing pattern of the neuron. Each component of the AHP is kinetically distinct and is mediated by different calcium-activated potassium channels. The protein encoded by this gene is activated before membrane hyperpolarization and is thought to regulate neuronal excitability by contributing to the slow component of synaptic AHP. The encoded protein is an integral membrane protein that forms a voltage-independent calcium-activated channel with three other calmodulin-binding subunits. This gene is a member of the KCNN family of potassium channel genes. [provided by RefSeq, Jul 2008]
Known Variants29 total
| rsid | Position (GRCh37) | Alleles | Class | ClinVar |
|---|---|---|---|---|
| rs773354965 | 19:18,084,761 | G/A | — | uncertain significance |
| rs376464690 | 19:18,084,787 | C/T | — | benign |
| rs758827947 | 19:18,084,798 | C/T | — | uncertain significance |
| rs376519329 | 19:18,084,807 | C/T | — | uncertain significance |
| rs1265177061 | 19:18,084,816 | C/T | — | uncertain significance |
| rs202131645 | 19:18,084,837 | C/G | — | uncertain significance |
| rs555956505 | 19:18,084,855 | G/A | — | likely benign |
| rs565287804 | 19:18,084,866 | G/A | — | uncertain significance |
| rs527651865 | 19:18,084,876 | G/A | — | uncertain significance |
| rs750178153 | 19:18,085,052 | G/A | — | uncertain significance |
| rs1423436676 | 19:18,085,982 | G/A | — | uncertain significance |
| rs74940055 | 19:18,092,784 | C/T | — | likely benign |
| rs774227733 | 19:18,092,923 | C/T | — | uncertain significance |
| rs369729099 | 19:18,092,944 | C/T | — | benign |
| rs112068658 | 19:18,093,588 | C/G | intron variant | — |
| rs763432784 | 19:18,096,237 | G/T | — | uncertain significance |
| rs895252839 | 19:18,099,242 | C/T | — | uncertain significance |
| rs1298141614 | 19:18,099,263 | C/T | — | uncertain significance |
| rs1338697202 | 19:18,099,296 | G/A | — | uncertain significance |
| rs751351847 | 19:18,099,333 | G/A | — | uncertain significance |
| rs2514767980 | 19:18,100,577 | A/T | — | uncertain significance |
| rs371666280 | 19:18,100,606 | G/T | — | uncertain significance |
| rs373021908 | 19:18,104,357 | G/A | — | uncertain significance |
| rs2514784603 | 19:18,109,013 | A/T | — | uncertain significance |
| rs765453929 | 19:18,109,025 | G/A | — | uncertain significance |
| rs757389735 | 19:18,109,055 | C/T | — | uncertain significance |
| rs2514785186 | 19:18,109,148 | C/G | — | uncertain significance |
| rs1238218619 | 19:18,109,181 | G/A | — | uncertain significance |
| rs775183496 | 19:18,109,202 | C/T | — | uncertain significance |
Gene information from NCBI Gene. Variant classifications from ClinVar.