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Fertilization

Calcium's double punch

Fertilization promotes a calcium surge necessary to ensure the success of embryonic development. It seems that calcium activates apparently opposite molecular signalling pathways to achieve that end.

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Figure 1: Events leading to meiotic arrest.
Figure 2: Fertilization, calcium surge and calcineurin.

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Jessus, C., Haccard, O. Calcium's double punch. Nature 449, 297–298 (2007). https://doi.org/10.1038/449297a

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