Mutations in the KCNA1 gene associated with episodic ataxia type-1 syndrome impair heteromeric voltage-gated K(+) channel function.

Abstract excerpt

Episodic ataxia type-1 syndrome (EA-1) is an autosomal dominant neurological disorder that manifests itself during infancy and results from point mutations in the voltage-gated potassium channel gene hKv1.1. The hallmark of the disease is continuous myokymia and episodic attacks of spastic contractions of the skeletal muscles, which cause permanent disability. Coexpression of hKv1.1 and hKv1.2 subunits produces...

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