Abstract
We have developed two dynamic sensors that report cell cycle position in living mammalian cells. The sensors use well-characterized components from proteins that are spatially and temporally regulated through the cell cycle. Coupling of these components to Enhanced Green Fluorescent Protein (EGFP) has been used to engineer fusion proteins that report G1/S and G2/M transitions during the cell cycle without perturbing cell cycle progression. Expression of these sensors in stable cell lines allows high content analysis of the effects of drugs and gene knockdown on the cell cycle using automated image analysis to determine cell cycle position and to abstract correlative data from multiplexed sensors and morphological analysis.
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