<unk>  is a lamellar particle of 30 to 70 nm in diameter as revealed by electron microscopy. It is characterized by its high content of phospholipids (66% by weight) and unesterified cholesterol (22%), and its low content of protein (6%), cholesterol esters (3%), and triglycerides (3%). The protein component is dominated by albumin, located in the core, and by apolipoprotein C, located on the surface of the particle. Using zonal ultracentrifugation,<unk>  can be divided into three distinct populations: Lp-X1, Lp-X2, and Lp-X3, differing in density and apolipoprotein composition.
Lipoprotein-X
Apolipoprotein
Deoxycholic acid
Very low-density lipoprotein
Intermediate-density lipoprotein
High-density lipoprotein
Low-density lipoprotein
Lipoprotein lipase