Myasthenic Syndrome, Congenital, 3b, Fast-channel; Cms3b
Description
Fast-channel congenital myasthenic syndrome (FCCMS) is a disorder of the postsynaptic neuromuscular junction (NMJ) characterized by early-onset progressive muscle weakness. The disorder results from kinetic abnormalities of the acetylcholine receptor channel, specifically from abnormally brief opening and activity of the channel, with a rapid decay in endplate current and a failure to reach the threshold for depolarization. Treatment with pyridostigmine or amifampridine may be helpful; quinine, quinidine, and fluoxetine should be avoided (summary by Sine et al., 2003 and Engel et al., 2015).For a discussion of genetic heterogeneity of CMS, see CMS1A (OMIM ).
Genes related to Myasthenic Syndrome, Congenital, 3b, Fast-channel; Cms3b
- CHRND
Clinical Features
Top most frequent phenotypes and symptoms related to Myasthenic Syndrome, Congenital, 3b, Fast-channel; Cms3b
- Generalized hypotonia
- Micrognathia
- Muscle weakness
- Ptosis
- Flexion contracture
- High palate
- Feeding difficulties
- Dysphagia
- Respiratory insufficiency
- Respiratory distress
And another 11 symptoms. If you need more information about this disease we can help you.
Incidence and onset information
— Currently we don't have prevalence information about this disease (Not enough data available about incidence and published cases.)— No data available about the known clinical features onset.
Researches and researchers
Currently, we don't have any information about doctors, researches or researchers related to this disease. Please contact us if you would like to appear here.Myasthenic Syndrome, Congenital, 3b, Fast-channel; Cms3b Recommended genes panels
Panel Name, Specifity and genes Tested/covered |
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Congenital Myasthenic Syndrome Advanced Sequencing Evaluation.
By Athena Diagnostics Inc (United States).
SCN4A, CHAT, CHRNA1, CHRNB1, CHRND, CHRNE, COLQ, DOK7, DPAGT1, AGRN, GFPT1, MUSK, RAPSN
Specificity
8 %
Genes
100 % |
Non-immune Hydrops Panel.
By Greenwood Genetic Center Diagnostic Laboratories Greenwood Genetic Center (United States).
RIT1, RPL11, RPL35A, RPL5, RPS10, RPS17, RPS19, RPS24, RPS26, SEC23B, SLC17A5, BRAF, SMPD1, SOS1, SOS2, SOX18, UROS, CBL, SHOC2, ALG9 , (...)
View the complete list with 66 more genes
Specificity
2 %
Genes
100 % |
Neuromuscular Disorders Panel.
By Greenwood Genetic Center Diagnostic Laboratories Greenwood Genetic Center (United States).
RYR1, BIN1, SCN4A, SGCA, SGCB, SGCD, SGCE, SGCG, SLC25A4, SUCLA2, SUCLG1, TWNK, TCAP, TIA1, TK2, TNNI2, TNNT1, TPM2, TPM3, MYOT , (...)
View the complete list with 124 more genes
Specificity
1 %
Genes
100 % |
Congenital Contractures Panel.
By Greenwood Genetic Center Diagnostic Laboratories Greenwood Genetic Center (United States).
SKI, SLC18A3, TNNI2, TNNT3, TPM2, TPM3, UBA1, ZMPSTE24, ACTA1, ADGRG6, SLC5A7, KLHL41, FKBP10, NEK9, NALCN, CHAT, CHRNA1, CHRNB1, CHRND, CHRNE , (...)
View the complete list with 37 more genes
Specificity
2 %
Genes
100 % |
Comprehensive Neuromuscular Panel.
By Knight Diagnostic Laboratories - Molecular Diagnostic Center Oregon Health & Science University (United States).
RYR1, RYR2, BIN1, SCN4A, SGCA, SGCB, SGCD, SGCE, SGCG, TCAP, TNNI2, TNNT1, TPM2, TPM3, MYOT, TTN, VCP, VRK1, ACTA1, CAPN3 , (...)
View the complete list with 59 more genes
Specificity
2 %
Genes
100 % |
Neuromuscular Disorders Sequencing Panel.
By Genetic Services Laboratory University of Chicago (United States).
RYR1, BIN1, SCN4A, SGCA, SGCB, SGCD, SGCG, SNAP25, STIM1, SYT2, TCAP, TNNT1, TNXB, TPM2, TPM3, MYOT, TTN, VCP, ACTA1, RXYLT1 , (...)
View the complete list with 91 more genes
Specificity
1 %
Genes
100 % |
Congenital Myasthenic Syndrome Sequencing Panel.
By Genetic Services Laboratory University of Chicago (United States).
SCN4A, SNAP25, SYT2, CHAT, CHRNA1, CHRNB1, CHRND, CHRNE, COL13A1, COLQ, ALG2, DOK7, ALG14, DPAGT1, PREPL, AGRN, GFPT1, LRP4, MUSK, RAPSN
Specificity
5 %
Genes
100 % |
Congenital Myasthenic Syndrome Deletion/Duplication Panel.
By Genetic Services Laboratory University of Chicago (United States).
SCN4A, SNAP25, SYT2, CHAT, CHRNA1, CHRNB1, CHRND, CHRNE, COL13A1, COLQ, ALG2, DOK7, ALG14, DPAGT1, PREPL, AGRN, GFPT1, LRP4, MUSK, RAPSN
Specificity
5 %
Genes
100 % |
You can get up to 58 more panels with our dedicated tool
Learn moreSources and references
You can check the following sources for additional information.
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