The exchangeable Zn2+ pool in cells is not static but responds to perturbations as well as fluctuates naturally through the cell cycle. Here, we present a protocol to carry out long-term live-cell imaging of cells expressing a cytosolic Zn2+ sensor. We then describe how to track cells using the published pipeline EllipTrack and how to analyze the single-cell traces to determine changes in labile Zn2+ in response to perturbation. For complete details on the use and execution of this protocol, please refer to Rakshit and Holtzen et al.1
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Holtzen et al. (2024) studied this question.
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