| Gene Symbol | SLC8A1 |
| Entrez Gene ID | 6546 |
| Full Name | solute carrier family 8 member A1 |
| Synonyms | NCX1 |
| General protein information |
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| Gene Type | protein-coding |
| Organism | Homo sapiens(human) |
| Genome | |
| Summary | In cardiac myocytes, Ca(2+) concentrations alternate between high levels during contraction and low levels during relaxation. The increase in Ca(2+) concentration during contraction is primarily due to release of Ca(2+) from intracellular stores. However, some Ca(2+) also enters the cell through the sarcolemma (plasma membrane). During relaxation, Ca(2+) is sequestered within the intracellular stores. To prevent overloading of intracellular stores, the Ca(2+) that entered across the sarcolemma must be extruded from the cell. The Na(+)-Ca(2+) exchanger is the primary mechanism by which the Ca(2+) is extruded from the cell during relaxation. In the heart, the exchanger may play a key role in digitalis action. The exchanger is the dominant mechanism in returning the cardiac myocyte to its resting state following excitation.[supplied by OMIM, Apr 2004]. |
| Disorder MIM: |
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