Function
Clcn2 is a voltage-gated chloride channel. Chloride channels play crucial roles in various cellular processes, including cell volume regulation, membrane potential stabilization, signal transduction, and transepithelial transport. Clcn2 is specifically involved in regulating aldosterone production. In the glomerulosa cells, the opening of Clcn2 channels at hyperpolarized membrane potentials leads to cell membrane depolarization. This depolarization subsequently activates voltage-gated calcium channels, resulting in increased expression of aldosterone synthase, the rate-limiting enzyme in aldosterone biosynthesis.