| By the successive use of immunosorbers specific for ApoF , apolipoprotein A 2 ( ApoA 2 ) and apolipoprotein A 1 ( ApoA 1 ) , three different ApoF containing lipoproteins were isolated from normolipidemic fasting human plasma . ^^^ The three ApoF containing lipoproteins were identified as LpF : A 1 : A 2 ( lipoprotein containing ApoF , ApoA 1 , and ApoA : 2 ) , LpF : A 1 ( lipoprotein containing ApoF and ApoA 1 ) , and LpF ( lipoprotein containing only ApoF ) . ^^^ LpF : A 1 : A 2 was found to contain ApoF , ApoA 1 , and ApoA 2 in an apparent 2 : 1 : 1 molar ratio . ^^^ |