#lipoprotein  a conjugated protein having a lipid component; the principal means for transporting lipids in the blood
  supertype:  conjugated_protein__compound_protein  a protein complex combining amino acids with other substances
  subtype:  high-density_lipoprotein__HDL__alpha-lipoportein  a lipoprotein that transports cholesterol in the blood; composed of a high proportion of protein and relatively little cholesterol; high levels are thought to be associated with decreased risk of coronary heart disease and atherosclerosis
  subtype:  low-density_lipoprotein__lowdensitylipoprotein__LDL__ldl__beta-lipoprotein  a lipoprotein that transports cholesterol in the blood; composed of moderate amount of protein and a large amount of cholesterol; high levels are thought to be associated with increased risk of coronary heart disease and atherosclerosis
  subtype:  very_low_density_lipoprotein__VLDL  large lipoproteins rich in triglycerides; VLDLs circulate through the blood giving up their triglycerides to fat and muscle tissue until the VLDL remnants are modified and converted into LDL

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