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Monday
Apr022012

Lipoprotein

"A lipoprotein is a biochemical assembly that contains both proteins and lipids, bound to the proteins, which allow fats to move through the water outside cells and inside cells. The proteins serve to emulsify the lipid (otherwise called fat) molecules. Many enzymestransporters, structural proteins, antigensadhesins, and toxins are lipoproteins. Examples include the high-density (HDL) and low-density (LDL) lipoproteins, which enable fats to be carried in the blood stream, thetransmembrane proteins of the mitochondrion and the chloroplast, and bacterial lipoproteins."

"Lipoproteins may be classified as follows, listed from larger and less dense to smaller and denser. Lipoproteins are larger and less dense when the fat to protein ratio is increased. They are classified on the basis of electrophoresis and ultracentrifugation.

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