Motor deficits in homozygous and heterozygous p/q-type calcium channel mutants.

Abstract excerpt

P/Q-type voltage-dependent Ca(2+) channels (VDCCs) are highly expressed in the cerebellum, and mutations of these channels are associated with disrupted motor function. Several allelic variants of the alpha1A pore-forming subunit of P/Q-type VDCCs have been described, and mice homozygous for these mutations exhibit gait ataxia, as do alpha1A knockout mice. Here we report that heterozygous alpha1A mutants also...

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