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. Author manuscript; available in PMC: 2014 Aug 1.
Published in final edited form as: Cell Microbiol. 2013 Mar 14;15(8):1401–1418. doi: 10.1111/cmi.12125

Figure 6. Characterization of an intermediate compartment in PfEMP1 export.

Figure 6

(A) Transfectants (ITK strain) expressing the PfEMP1B-GFP chimera were co-labeled with BODIPY-ceramide and imaged using 3D-SIM. See higher magnification image at right. (B) PfEMP1B-GFP transfectants (endogenous GFP fluorescence; green) were permeabilized with EqtII and antibody-accessible epitopes were labeled with anti-GFP (magenta) and anti-REX1 (red). (C) PfEMP1B-GFP transfectants were fixed and resin-embedded and sections were labeled with anti-GFP and protein-A-gold (6 nm left panels, 10 nm right panels). Labeling is observed at bulges in the PV (arrows). (D) Smears of PfEMP1B-GFP transfectant-infected RBCs were fixed with acetone: methanol and stained with antibodies recognizing GFP and Exp1 (D) or Hsp101 (E). Scale bars = 2 μm (A, first three columns), 1 μm (A, last column), 2 μm (B), as marked (C) and 2 μm (D, E).