Myasthenic Syndrome, Congenital, 4b, Fast-channel; Cms4b

Table of contents:

Description
Related genes
Clinical Features
Incidence and onset information
Alternative Names
Researches and researchers
Gene Panels
Sources and references

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 AChR 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, 4b, Fast-channel; Cms4b

CHRNE

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Clinical Features

Top most frequent phenotypes and symptoms related to Myasthenic Syndrome, Congenital, 4b, Fast-channel; Cms4b

Muscle weakness
Ptosis
Feeding difficulties
Respiratory insufficiency
Neonatal hypotonia
Facial palsy
Ophthalmoplegia
Progressive muscle weakness
Easy fatigability
Neck muscle weakness

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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, 4b, Fast-channel; Cms4b Recommended genes panels

Panel Name, Specifity and genes Tested/covered
GeneAware Complete Panel Version 2 (Female). By Baylor Miraca Genetics Laboratories (United States). RMRP, BCS1L, SACS, BLM, SGCA, SGCB, SGCG, SGSH, SLC12A6, SLC17A5, SLC22A5, SLC25A13, SLC25A15, SLC26A2, SLC35A3, SLC7A7, SMN1, SMPD1, BTD, BTK , (...) View the complete list with 139 more genes Panel complete gene list RMRP, BCS1L, SACS, BLM, SGCA, SGCB, SGCG, SGSH, SLC12A6, SLC17A5, SLC22A5, SLC25A13, SLC25A15, SLC26A2, SLC35A3, SLC7A7, SMN1, SMPD1, BTD, BTK, TGM1, TH, TTPA, UBE3A, UGT1A1, USH1C, USH2A, CLRN1, WAS, MCOLN1, NPHS2, CDH23, PCDH15, CAPN3, CBS, HPS3, LRPPRC, RTEL1, MLC1, DCLRE1C, ADA, CFTR, CHAT, POMGNT1, CHRNE, SUMF1, DHDDS, TPP1, CLN3, CLN5, CLN6, CLN8, ADAMTS2, COL4A3, CPT1A, ETHE1, CPT2, GNE, MMACHC, TMEM216, CTNS, CTSK, CYBB, CYP1B1, CYP27A1, BBS10, DOK7, DBT, DHCR7, DLD, DMD, GNPTAB, DPYD, AGA, AGL, EIF2B5, AGXT, FAH, FANCC, FKTN, FH, FMR1, ALDH3A2, G6PC, G6PD, SLC37A4, GAA, GALC, GALT, ALDOB, GBA, GCDH, GJB2, GJB6, GLB1, GLDC, ALPL, GRHPR, AMT, HADHA, HBA1, HBA2, HBB, HEXA, HEXB, HMGCL, HSD17B4, IDUA, ABCC8, ELP1, IL2RG, ABCD1, IVD, LAMA3, LAMB3, LAMC2, MAN2B1, MECP2, ARSA, MPI, MPL, ASL, MTTP, ASPA, ASS1, MYO7A, NBN, NEB, NPC1, NPHP1, NPHS1, ATM, OCRL, OTC, PAH, PC, PCCA, PCCB, ATP7B, SLC26A4, PEX1, PEX7, ACADM, PHGDH, SERPINA1, PKHD1, PLA2G6, PMM2, POLG, ACADVL, PPT1, PROP1, BBS1, BBS2, PTS, PEX2, BCKDHA, RAPSN, BCKDHB Specificity 1 % Genes 100 %
GeneAware Complete Panel Version 2 (Male). By Baylor Miraca Genetics Laboratories (United States). RMRP, BCS1L, SACS, BLM, SGCA, SGCB, SGCG, SGSH, SLC12A6, SLC17A5, SLC22A5, SLC25A13, SLC25A15, SLC26A2, SLC35A3, SLC7A7, SMN1, SMPD1, BTD, TGM1 , (...) View the complete list with 129 more genes Panel complete gene list RMRP, BCS1L, SACS, BLM, SGCA, SGCB, SGCG, SGSH, SLC12A6, SLC17A5, SLC22A5, SLC25A13, SLC25A15, SLC26A2, SLC35A3, SLC7A7, SMN1, SMPD1, BTD, TGM1, TH, TTPA, UBE3A, UGT1A1, USH1C, USH2A, CLRN1, WAS, MCOLN1, NPHS2, CDH23, PCDH15, CAPN3, CBS, HPS3, LRPPRC, RTEL1, MLC1, DCLRE1C, ADA, CFTR, CHAT, POMGNT1, CHRNE, SUMF1, DHDDS, TPP1, CLN3, CLN5, CLN6, CLN8, ADAMTS2, COL4A3, CPT1A, ETHE1, CPT2, GNE, MMACHC, TMEM216, CTNS, CTSK, CYP1B1, CYP27A1, BBS10, DOK7, DBT, DHCR7, DLD, GNPTAB, DPYD, AGA, AGL, EIF2B5, AGXT, FAH, FANCC, FKTN, FH, ALDH3A2, G6PC, SLC37A4, GAA, GALC, GALT, ALDOB, GBA, GCDH, GJB2, GJB6, GLB1, GLDC, ALPL, GRHPR, AMT, HADHA, HBA1, HBA2, HBB, HEXA, HEXB, HMGCL, HSD17B4, IDUA, ABCC8, ELP1, IVD, LAMA3, LAMB3, LAMC2, MAN2B1, ARSA, MPI, MPL, ASL, MTTP, ASPA, ASS1, MYO7A, NBN, NEB, NPC1, NPHP1, NPHS1, ATM, PAH, PC, PCCA, PCCB, ATP7B, SLC26A4, PEX1, PEX7, ACADM, PHGDH, SERPINA1, PKHD1, PLA2G6, PMM2, POLG, ACADVL, PPT1, PROP1, BBS1, BBS2, PTS, PEX2, BCKDHA, RAPSN, BCKDHB Specificity 1 % Genes 100 %
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 %
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 Panel complete gene list RYR1, BIN1, SCN4A, SGCA, SGCB, SGCD, SGCE, SGCG, SLC25A4, SUCLA2, SUCLG1, TWNK, TCAP, TIA1, TK2, TNNI2, TNNT1, TPM2, TPM3, MYOT, TTN, UBA1, VCP, VRK1, ACTA1, RXYLT1, FBXL4, CACNA1S, SLC5A7, CCDC78, CAPN3, DNAJB6, CAV3, B4GAT1, LDB3, BSCL2, SELENON, LIMS2, MGME1, TRIM32, FIG4, SPEG, KLHL41, SYNE2, SYNE1, TNPO3, BICD2, RRM2B, FKRP, TRPV4, CFL2, CHAT, POMGNT1, CHKB, CHRNA1, CHRNB1, CHRND, CHRNE, CHRNG, POMT2, CLCN1, CNTN1, AGK, COL12A1, COL6A1, COL6A2, COL6A3, COLQ, GMPPB, GNE, CRYAB, SIL1, LAS1L, TRAPPC11, REEP1, POMGNT2, MTMR14, POMK, DOK7, DAG1, DCTN1, ANO5, DES, STAC3, TMEM43, B3GALNT2, SMCHD1, PLEKHG5, DMD, TOR1AIP1, DYNC1H1, MEGF10, DNM2, DNMT1, DPM1, DPM2, DPM3, HSPB8, KLHL40, PNPLA2, DYSF, TYMP, EMD, FKTN, FHL1, KBTBD13, ISPD, FLNC, GAA, GAN, GARS, GLE1, SETX, AMPD1, HINT1, HNRNPDL, HSPB1, IGHMBP2, ITGA7, LAMA2, LAMP2, LARGE1, LMNA, LMOD3, MATR3, MTM1, MUSK, MYF6, MYH2, MYH7, NEB, ATP2A1, PABPN1, ATP7A, PHKA1, PLEC, PMM2, POLG, POLG2, POMT1, BAG3, CAVIN1, PYGM, RAPSN 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 Panel complete gene list SKI, SLC18A3, TNNI2, TNNT3, TPM2, TPM3, UBA1, ZMPSTE24, ACTA1, ADGRG6, SLC5A7, KLHL41, FKBP10, NEK9, NALCN, CHAT, CHRNA1, CHRNB1, CHRND, CHRNE, CHRNG, SCARF2, SLC39A13, CNTN1, ANTXR2, COL3A1, ALG2, ADCY6, CHST14, ZC4H2, PIEZO2, DOK7, GLDN, DNM2, ECEL1, ZBTB42, ERBB3, ERCC6, FBN1, FBN2, GLE1, RIPK4, LMNA, MUSK, MYBPC1, MYH2, MYH3, MYH8, NEB, CNTNAP1, CHMP1A, PIP5K1C, PITX1, PLOD2, PLOD3, PSMB8, RAPSN 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 Panel complete gene list RYR1, RYR2, BIN1, SCN4A, SGCA, SGCB, SGCD, SGCE, SGCG, TCAP, TNNI2, TNNT1, TPM2, TPM3, MYOT, TTN, VCP, VRK1, ACTA1, CAPN3, CAV3, LDB3, BSCL2, SELENON, TRIM32, SYNE2, SYNE1, FKRP, CFL2, CHAT, POMGNT1, CHRNA1, CHRNB1, CHRND, CHRNE, CHRNG, POMT2, COL6A1, COL6A2, COL6A3, COLQ, GNE, CRYAB, SIL1, MTMR14, DOK7, DAG1, ANO5, DES, PLEKHG5, DMD, DNM2, DYSF, EMD, FKTN, FHL1, ISPD, FLNC, GAA, GLE1, AMPD1, IGHMBP2, ITGA7, LAMA2, LARGE1, LMNA, MTM1, MUSK, MYH2, MYH7, NEB, PABPN1, PLEC, PMM2, POMT1, BAG3, CAVIN1, PYGM, RAPSN 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 Panel complete gene list RYR1, BIN1, SCN4A, SGCA, SGCB, SGCD, SGCG, SNAP25, STIM1, SYT2, TCAP, TNNT1, TNXB, TPM2, TPM3, MYOT, TTN, VCP, ACTA1, RXYLT1, CCDC78, CAPN3, DNAJB6, CAV3, B4GAT1, LDB3, SELENON, LIMS2, TRIM32, SPEG, KLHL41, SYNE2, SYNE1, TNPO3, FKRP, FKBP14, CFL2, CHAT, POMGNT1, CHKB, CHRNA1, CHRNB1, CHRND, CHRNE, POMT2, CNTN1, COL12A1, COL13A1, COL6A1, COL6A2, COL6A3, COLQ, GMPPB, ALG2, GNE, CRYAB, CHST14, SIL1, TRAPPC11, ORAI1, POMK, DOK7, DAG1, ANO5, DES, ALG14, STAC3, TMEM43, B3GALNT2, DMD, MEGF10, DNM2, DPAGT1, DPM1, DPM2, DPM3, PREPL, KLHL40, DYSF, AGRN, EMD, FKTN, FHL1, KBTBD13, ISPD, FLNC, GAA, GBE1, GFPT1, HNRNPDL, HRAS, ITGA7, LAMA2, LAMB2, LAMP2, LARGE1, LMNA, LMOD3, LRP4, MTM1, MUSK, MYF6, MYH2, MYH7, MYL2, NEB, PLEC, BAG3, HACD1, PYGM, RAPSN 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 %

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Sources and references

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