Fig 1. Intracellular neutralisation assay.
(A) Images of rotavirus-infected cells following electroporation of anti-VP6 MAb. Rotavirus-infected cells were stained with sheep polyclonal anti-rotavirus antibody and subsequently Alexa-Fluor 488-conjugated anti-sheep Ig. Scale bar 200μm (B) Fluorescent foci in (A) captured on a Nikon Eclipse Ti microscope were quantified by NIS analysis software. (C) Confocal images of a rotavirus-infected murine embryonic fibroblast cell 1 hour post infection in the presence of electroporated anti-VP6 Mab, scale bar 10μm. (D) Comparison of extracellular versus intracellular neutralisation for two anti-VP6 MAbs, 7D9 and 2C5. (E) Testing for intracellular neutralisation mediated by MAbs recognising VP4 (7A12 and 1A9).