function:Major acute phase reactant. Apolipoprotein of the HDL complex.,induction:Constitutively expressed.,similarity:Belongs to the SAA family.,tissue specificity:Expressed by the liver, secreted in plasma.,function:Major acute phase reactant. Apolipoprotein of the HDL complex.,induction:Constitutively expressed.,similarity:Belongs to the SAA family.,tissue specificity:Expressed by the liver, secreted in plasma.,