<unk> s are lipid-binding proteins which are the constituents of the plasma lipoproteins, sub-microscopic spherical particles that transport dietary lipids through the bloodstream from the intestine to the liver, and endogenously synthesized lipids from the liver to tissues that can store them (adipocytes), metabolize them (muscle, heart, lung), or secrete them (breast).  The amphipathic detergent-like properties of<unk> s solubilize the hydrophobic lipid constituents of lipoproteins.  In addition,<unk> s also serve as enzyme co-factors, receptor ligands, and lipid transfer carriers that regulate the intravascular metabolism of lipoproteins and their ultimate tissue uptake.
Apolipoprotein
Lipoprotein
High density lipoprotein
Braun's lipoprotein
Low density lipoprotein
Carrier protein
Cholesterol
Hemoglobin