Congenital Myasthenic Syndrome 7, also known as cms7, is related to myasthenic syndrome, congenital, 7a, presynaptic, and distal motor neuropathy, autosomal dominant and infant botulism. An important gene associated with Congenital Myasthenic Syndrome 7 is SYT2 (Synaptotagmin 2). Related phenotypes are areflexia and decreased compound muscle action potential amplitude