Apolipoprotein E (apo E) is a structural constituent of several serum lipoprotein classes. It plays an important role in lipid metabolism by acting as a ligand for low-density lipoprotein (LDL) and chylomicron remnant receptors. Three common alleles called e2, e3 and e4 have been described, which code for three protein isoforms (E2, E3 and E4). The polymorphism is clinically significant, and it...
