Congenital Myasthenic Syndrome Panel
- GTR Test IDHelpEach Test is a specific, orderable test from a particular laboratory, and is assigned a unique GTR accession number. The format is GTR00000001.1, with a leading prefix 'GTR' followed by 8 digits, a period, then 1 or more digits representing the version. When a laboratory updates a registered test, a new version number is assigned.: GTR000506310.8
- Last updated: 2021-01-19
- Test version history
Clinical testHelpIn the U.S., clinical tests must be performed under CLIA certification. When a lab uses the same methods for a test in both clinical and research settings, the test appears as two separate GTR records. for Myasthenia, limb-girdle, autoimmune
Offered by Genetic Services Laboratory
Overview
Test name
HelpThe name the laboratory assigns the test. Used as the default title of the page specific to the test.Congenital Myasthenic Syndrome Panel
This is a clinical test intended for HelpPurposes or indications for the test. Lab-provided.: Diagnosis, Monitoring, Mutation Confirmation, Pre-symptomatic, Risk Assessment, Screening
Click Indication tab for more information.
All samples should be shipped via overnight delivery at room temperature.
No weekend or holiday deliveries.
Label each specimen with the patient’s name, date of birth and date sample collected.
Send specimens with complete requisition and consent form, otherwise, specimen processing may be delayed.
Order URL HelpLink to the laboratory webpage with information about how to order this test. Please note that clicking on this link will open a new tab in your internet browser.: http://dnatesting.uchicago.edu/submitting-sample
Specimen source
Methodology
HelpThe assay's major method category (biochemical, cytogenetic or molecular genetics); method category (i.e. enzyme assay, chromosome breakage studies, targeted mutation analysis); methodology (i.e. the name of the method used) and instruments used when performing this test.- Molecular Genetics
- DDeletion/duplication analysis
- Next-Generation (NGS)/Massively parallel sequencing (MPS)
- CSequence analysis of the entire coding region
- Next-Generation (NGS)/Massively parallel sequencing (MPS)
Establish or confirm diagnosis
- Congenital Myasthenic Syndromes Overview. - PubMed ID: 20301347
- https://www.ncbi.nlm.nih.gov/books/NBK1168
Clinical validity
HelpHow consistently and accurately the test detects or predicts the intermediate or final outcomes of interest. Lab-provided.Congenital myasthenic syndromes are inherited in an autosomal recessive, or, less frequently, autosomal dominant manner. In autosomal recessive CMS (AR-CMS), the parents of an affected child are obligate heterozygotes and therefore carry one mutant allele. Heterozygotes (carriers) are asymptomatic. At conception, each sib of an affected individual has a 25% chance of being affected, a 50% chance of being an asymptomatic carrier, and a 25% chance of being unaffected and not a carrier. In autosomal dominant CMS (AD-CMS), some individuals have an affected parent while others have a de novo mutation. The proportion of cases caused by de novo mutations is unknown. Each child of an individual with AD-CMS has a 50% chance of inheriting the mutation. Prenatal testing for pregnancies at increased risk is possible through laboratories offering either testing for the gene of interest or custom testing.
- Congenital Myasthenic Syndromes Overview. - PubMed ID: 20301347
- https://www.ncbi.nlm.nih.gov/books/NBK1168
Test services
HelpLaboratory's order or catalog code for the test (used in the order requisition form).- Clinical Testing/Confirmation of Mutations Identified Previously
- Confirmation of research findings
- Custom Prenatal Testing
- Custom mutation-specific/Carrier testing
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