25 % of Apo A in HDL is Apo AII. Levels of Apo AII in normal plasma range from 30-50 mg per 100 ml. The physiological role of the protein is unknown. Alcohol consumption, however, increases Apo AII levels. Description: Human plasma. Alternative Names: ApoA2 protein, Apo AII protein, ApoA II protein, Apolipoprotein A ll protein