Apolipoprotein H (Apo-H), previously known as β 2-glycoprotein I and beta-2 glycoprotein I, is a 38 kDa multifunctional apolipoprotein that in humans is encoded by the APOH gene . Beta-2 glycoprotein 1 (beta-2 GP1, also called apolipoprotein H) is a 326-amino acid polypeptide synthesized by hepatocytes, endothelial cells and trophoblast cells.. In autoimmune disease, anti-apolipoprotein H (AAHA) antibodies, also called anti-β 2 glycoprotein I antibodies, comprise a subset of anti-cardiolipin antibodies and lupus anticoagulant. These antibodies are involved in sclerosis and are strongly associated with thrombotic forms of lupus. . Hi, I would be grateful if anyone can tell me how test results for Beta 2 Glycoprotein 1 Antibodies IgG and IgM are normally reported. I had a Beta 2 Glycoprotein 1 Antibodies IgG test and a Beta 2 Glycoprotein 1 Antibodies IgM test done as part of the Medichecks Hughes Syndrome Screening.. The persistent presence of IgG and/or IgM beta 2 glycoprotein I (B2GPI) antibodies (greater than 99th percentile) is a laboratory criterion for the diagnosis of antiphospholipid syndrome (APS).. Beta-2 Glycoprotein I, Igg<10. Beta-2 Glycoprotein I, Igm<10. Beta-2 Glycoprotein I, Iga<10. Reply. AnnNY. 5 years ago. The antibody tests that were in the lower box are mostly what is the recommended tests for APS in the Hughes Charity website. I had those tested as well, except for the top 2. My anticardiolipin antibodies even though they were below ten were given number values, so my .