Heart Health Genes
The PCSK9 protein controls the number of low-density lipoprotein (LDL) receptors on the surface of cells. LDL receptors are critical for regulating blood cholesterol levels. The PCSK9 protein waylays LDL receptors after they transport cholesterol into cells, leading to their destruction. This prevents LDL receptors being recirculated back to the cell surface, which means fewer receptors overall and more cholesterol remaining in the bloodstream.