Mutation in the AChR ion channel gate underlies a fast channel congenital myasthenic syndrome

Abstract excerpt

BACKGROUND: Most congenital myasthenic syndromes (CMS) have postsynaptic defects from mutations within the muscle acetylcholine receptor (AChR). Mutations underlying the slow channel syndrome cause a "gain of function" and usually show dominant inheritance, whereas mutations underlying AChR deficiency or the fast channel syndrome cause a "loss of function" and show recessive inheritance. OBJECTIVE: To...

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