Used in research settings to detect and quantify human autoantibodies targeting β2-glycoprotein I domain 1 in serum or plasma samples. This kit is particularly valuable in studies related to antiphospholipid syndrome (APS), where anti-β2GPI antibodies are key diagnostic markers. By enabling specific measurement of antibodies directed against domain 1 of β2GPI, it helps differentiate pathogenic antibody responses from non-pathogenic ones, supporting improved diagnostic accuracy and aiding in the investigation of thrombotic events and autoimmune mechanisms. The assay is widely used in clinical research and immunology laboratories for reliable, high-throughput screening.