Fig. 1.
Antibody-induced binding of hamster β2GPI to PLs.
Induction of β2-GPI binding to PLs (75% phosphatidylcholine and 25% phosphatidylserine) by intact 5H2 or its F(ab′)2 fragments compared to Fab′ fragments. Antibody-β2GPI complexes, attached to microtiter plate–coated PLs, were measured with a rabbit anti-β2GPI antiserum coupled to peroxidase. Data are mean of 2 determinations.