rs56181115

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_005592.4(MUSK):ā€‹c.312T>Cā€‹(p.Gly104=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000375 in 1,613,822 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: š‘“ 0.00027 ( 2 hom., cov: 31)
Exomes š‘“: 0.00039 ( 5 hom. )

Consequence

MUSK
NM_005592.4 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: -1.78
Variant links:
Genes affected
MUSK (HGNC:7525): (muscle associated receptor tyrosine kinase) This gene encodes a muscle-specific tyrosine kinase receptor. The encoded protein may play a role in clustering of the acetylcholine receptor in the postsynaptic neuromuscular junction. Mutations in this gene have been associated with congenital myasthenic syndrome. Alternatively spliced transcript variants have been described.[provided by RefSeq, Oct 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 9-110687222-T-C is Benign according to our data. Variant chr9-110687222-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 364601.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Uncertain_significance=1}.
BP7
Synonymous conserved (PhyloP=-1.78 with no splicing effect.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000269 (41/152192) while in subpopulation SAS AF= 0.00519 (25/4818). AF 95% confidence interval is 0.00361. There are 2 homozygotes in gnomad4. There are 26 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MUSKNM_005592.4 linkuse as main transcriptc.312T>C p.Gly104= synonymous_variant 3/15 ENST00000374448.9 NP_005583.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MUSKENST00000374448.9 linkuse as main transcriptc.312T>C p.Gly104= synonymous_variant 3/155 NM_005592.4 ENSP00000363571 P4O15146-1
MUSKENST00000416899.7 linkuse as main transcriptc.312T>C p.Gly104= synonymous_variant 3/145 ENSP00000393608 A1
MUSKENST00000189978.10 linkuse as main transcriptc.312T>C p.Gly104= synonymous_variant 3/145 ENSP00000189978 O15146-2
MUSKENST00000374439.1 linkuse as main transcriptc.6T>C p.Gly2= synonymous_variant 1/45 ENSP00000363562

Frequencies

GnomAD3 genomes
AF:
0.000263
AC:
40
AN:
152072
Hom.:
2
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000656
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00518
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000706
AC:
176
AN:
249228
Hom.:
1
AF XY:
0.000947
AC XY:
128
AN XY:
135210
show subpopulations
Gnomad AFR exome
AF:
0.0000646
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000556
Gnomad SAS exome
AF:
0.00493
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000159
Gnomad OTH exome
AF:
0.000826
GnomAD4 exome
AF:
0.000386
AC:
564
AN:
1461630
Hom.:
5
Cov.:
31
AF XY:
0.000530
AC XY:
385
AN XY:
727094
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00454
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000111
Gnomad4 OTH exome
AF:
0.000547
GnomAD4 genome
AF:
0.000269
AC:
41
AN:
152192
Hom.:
2
Cov.:
31
AF XY:
0.000349
AC XY:
26
AN XY:
74402
show subpopulations
Gnomad4 AFR
AF:
0.0000481
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00519
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000162
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000229
Hom.:
1
Bravo
AF:
0.000132
Asia WGS
AF:
0.00231
AC:
10
AN:
3478
EpiCase
AF:
0.000164
EpiControl
AF:
0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Congenital Myasthenic Syndrome, Recessive Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -
MUSK-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesAug 06, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Fetal akinesia deformation sequence 1;C4225368:Congenital myasthenic syndrome 9 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
3.9
DANN
Benign
0.64

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs56181115; hg19: chr9-113449502; API