CK1ε inhibition does not affect clock-controlled rhythmic locomotor activity in zebrafish larvae. Locomotor activity of zebrafish larvae was detected by the DanioVision observation chamber. Distance moved (cm) is plotted on the y-axis and time (hours) on the x-axis. The horizontal bars represent the lighting conditions before and during the experiment. White boxes represent light, black boxes represent dark and grey boxes represent dim light. The PF-480567 inhibitor was added to the water at two different concentrations, A-5 μM and B-10 μM (blue lines). Control larvae were treated with DMSO at the same concentrations (black lines). CK1ε inhibition did not affect the locomotor activity rhythm, but did have a slight phase shifting effect.
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