Additional file 6.

Photobleaching control measurement for rapid FRET sampling. Fluorescence signal intensities in CFP, FRET, and YFP channels were measured in unstimulated cells at rapid sampling conditions. This control excludes that photodamage by the acquisition process influenced the experimental measurements of effector caspase activation.

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Huber et al. BMC Systems Biology 2010 4:9   doi:10.1186/1752-0509-4-9