U.S. flag

An official website of the United States government

GTR Home > Conditions/Phenotypes > Congenital myasthenic syndrome 12

Summary

Congenital myasthenic syndrome-12 is an autosomal recessive neuromuscular disorder characterized by onset of proximal muscle weakness in the first decade. EMG classically shows a decremental response to repeated nerve stimulation. Affected individuals show a favorable response to acetylcholinesterase (AChE) inhibitors (summary by Senderek et al., 2011). For a discussion of genetic heterogeneity of CMS, see CMS1A (601462). [from OMIM]

Genes See tests for all associated and related genes

  • Also known as: CMS12, CMSTA1, GFA, GFAT, GFAT 1, GFAT1, GFAT1m, GFPT, GFPT1L, MSLG, GFPT1
    Summary: glutamine--fructose-6-phosphate transaminase 1

Clinical features

Help

Show allHide all

IMPORTANT NOTE: NIH does not independently verify information submitted to the GTR; it relies on submitters to provide information that is accurate and not misleading. NIH makes no endorsements of tests or laboratories listed in the GTR. GTR is not a substitute for medical advice. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.