Fluorescence intensity
Fig. 3. Flow cytometric analysis of feline CD9 expression on human cells. Cell lines HeLa (3a, b, c) and clone HH5 (d, e, f) were stained with anti-fCD4 (vpg33; 3a and d), anti-feline CD9 (vpgl5; 3b and e) and anti-human CD9 (FMCS6; 3c and 0- Percent positive was calculated from the analysis gate
shown.