Immunoprecipitation of PfEMP1^CSA from surface ¹²⁵I-labeled FCR3-mIE^CSA extract.

Lanes 1, 2, and 3: anti-mIE^CSA mAbs 2H5/D3, 2A11/B7, and 2A2/G6. Lanes 4, 5, and 6: anti–DBL-γ3 mAbs 1B11/A5, 4F10/G9, and 1B4/G10. Lane 7 positive control: pool of sera from multigravidae from Cameroon. Lane 8: unrelated IgM.