Low-density lipoprotein (LDL) belongs to the
lipoprotein particle family. Its size is approx. 22 nm but since LDL particles contain a changing number of fatty acids they actually have a mass and size distribution. Each native LDL particle contains a single
apolipoprotein B-100 molecule (Apo B-100, a protein with 4536
amino acid residues) that circles the fatty acids keeping them soluble in the aqueous environment..
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