Co-immunofluorescence for RH2a with rhoptry and micronemal markers. An immunofluorescence assay was performed on late-schizont-stage W2mef parasites stained for RH2a using the anti-RH2a MAb C22 and costained either with an antibody against the rhoptry neck marker RH1 (A), rabbit polyclonal antibody R2A9, recognizing both RH2a and RH2b (B), or an antibody against the micronemal marker AMA1 (C) or EBA175 (D). Bars, 5 mM. Gunalan K, Gao X, Liew KJ, Preiser PR. Differences in erythrocyte receptor specificity of different parts of the Plasmodium falciparum reticulocyte binding protein homologue 2a. Infect Immun. 2011. PMID: 21628513