CACNB2(redirected from Calcium channel voltage-dependent subunit beta 22 3)
CACNB2A gene on chromosome 10p12 that encodes a beta subunit of a voltage-dependent L-type calcium channel which, like other beta subunits, contributes to calcium-channel function by increasing peak calcium current, shifting the voltage dependencies of activation and inactivation.
The gene product was first identified as an antigen target in Lambert-Eaton myasthenic syndrome, an autoimmune disorder. CACNB2 mutations are associated with Brugada symdrome, type 4.
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