Myasthenic Syndrome, Congenital, 7b, Presynaptic, Autosomal Recessive, is also known as cms7b. An important gene associated with Myasthenic Syndrome, Congenital, 7b, Presynaptic, Autosomal Recessive is SYT2 (Synaptotagmin 2). Affiliated tissues include tongue and eye, and related phenotypes are hypotonia and weakness of facial musculature