Immunofluorescence staining of sickle cells by an antibody to an adhesive band 3 sequence in malaria infected cells. Sickle cells (A) and normal cells (B) were immunostained with monoclonal antibody (1F4) prepared against peptide 3d (band 3 residues 547-553), which inhibits cytoadherence in malaria infected cells.15 (C) Control immunostaining of sickle cells in the absence of primary antibody, 1F4.