Genetic heterogeneity of apolipoprotein E and its influence on plasma lipid and lipoprotein levels.
Apolipoprotein E (apoE) is one of the major protein constituents of chylomicron and very-low-density lipoprotein (VLDL) remnants and plays a central role as a ligand in the receptor-mediated uptake of these particles by the liver. Including the most common variant, apoE3, 30 apoE variants have been characterized. At present, 14 apoE variants have been found to be associated with familial dysbetalipoproteinemia, a genetic lipid disorder characterized by elevated plasma cholesterol and triglyceride levels and an increased risk for atherosclerosis. Seven apoE variants were found to be associated with other forms of hyperlipoproteinemia. This report presents an overview of all currently known apoE variants and their effects on lipoprotein metabolism.
de Knijff
P
P
TNO Institute of Prevention and Health Research, Gaubius Laboratory, Leiden, The Netherlands.
van den Maagdenberg
A M
AM
Frants
R R
RR
Havekes
L M
LM
D000483:Alleles; D000595:Amino Acid Sequence; D001057:Apolipoproteins E / Q000235:genetics*; D001483:Base Sequence; D004247:DNA / Q000235:genetics; D005260:Female; D005787:Gene Frequency; D014644:Genetic Variation; D006801:Humans; D006949:Hyperlipidemias / Q000097:blood / Q000235:genetics; D006952:Hyperlipoproteinemia Type III / Q000097:blood / Q000175:diagnosis / Q000235:genetics; D008055:Lipids / Q000097:blood*; D008074:Lipoproteins / Q000097:blood*; D008297:Male; D008969:Molecular Sequence Data; D009154:Mutation
D001057:Apolipoproteins E; D008055:Lipids; D008074:Lipoproteins; D004247:DNA