Lipoproteins, LDL

**Definition:** A class of lipoproteins of small size (18-25 nm) and light (1.019-1.063 g/ml) particles with a core composed mainly of CHOLESTEROL ESTERS and smaller amounts of TRIGLYCERIDES. The surface monolayer consists mostly of PHOSPHOLIPIDS, a single copy of APOLIPOPROTEIN B-100, and free cholesterol molecules. The main LDL function is to transport cholesterol and cholesterol esters to extrahepatic tissues.

**Tree numbers:** - D10.532.515 - D12.776.521.550

**Synonyms:** - beta-Lipoprotein - Low-Density Lipoprotein - beta-Lipoproteins - Low-Density Lipoproteins