CACNA1I is a gene that encodes a protein known as the calcium voltage-gated channel subunit alpha-1 I. This protein is part of a larger family of calcium channels that are involved in the regulation of calcium ions (Ca²⁺) across cell membranes. Specifically, CACNA1I encodes the alpha-1 subunit of a specific type of voltage-gated calcium channel known as the "Cav3.
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