Ca2+ is essential for cellular functions. The ability of this ion to act as an intracellular signal, common to almost all eukaryotic cells, allows it to orchestrate an enormous repertoire of cellular activities, from initiating egg development after fertilization to synaptic transmission between neurons.
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Holly Smith; The where and when of intracellular Ca2+ signaling. Biochem (Lond) 1 August 2019; 41 (4): 28–31. doi: https://doi.org/10.1042/BIO04104028
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