9-110775792-T-C

Variant names:

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_005592.4(MUSK):c.1189T>C(p.Tyr397His) variant causes a missense change. The variant allele was found at a frequency of 0.00141 in 1,613,726 control chromosomes in the GnomAD database, including 21 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0061 ( 11 hom., cov: 32)

Exomes 𝑓: 0.00092 ( 10 hom. )

Consequence

MUSK
NM_005592.4 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 4.34

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]

MUSK links:

LOC107987115 (HGNC:):

LOC107987115 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.012265563).

BP6

Variant 9-110775792-T-C is Benign according to our data. Variant chr9-110775792-T-C is described in ClinVar as [Benign]. Clinvar id is 259799.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00608 (926/152262) while in subpopulation AFR AF= 0.0205 (850/41540). AF 95% confidence interval is 0.0193. There are 11 homozygotes in gnomad4. There are 421 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 11 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MUSK	NM_005592.4 link	c.1189T>C	p.Tyr397His	missense_variant	Exon 10 of 15	ENST00000374448.9	NP_005583.1	O15146-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MUSK	ENST00000374448.9 link	c.1189T>C	p.Tyr397His	missense_variant	Exon 10 of 15	5	NM_005592.4	ENSP00000363571.4	O15146-1
MUSK	ENST00000416899.7 link	c.1189T>C	p.Tyr397His	missense_variant	Exon 10 of 14	5		ENSP00000393608.3	A0A087WSY1
MUSK	ENST00000189978.10 link	c.955T>C	p.Tyr319His	missense_variant	Exon 10 of 14	5		ENSP00000189978.6	O15146-2
MUSK	ENST00000374438.1 link	n.446T>C		non_coding_transcript_exon_variant	Exon 1 of 3	3

Frequencies

GnomAD3 genomes

AF:

0.00610

AC:

928

AN:

152144

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0205

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000415

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.000382

Gnomad OTH

AF:

0.00382

GnomAD3 exomes

AF:

0.00161

AC:

402

AN:

249148

Hom.:

AF XY:

0.00123

AC XY:

166

AN XY:

135166

show subpopulations

Gnomad AFR exome

AF:

0.0189

Gnomad AMR exome

AF:

0.00180

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000328

Gnomad OTH exome

AF:

0.00182

GnomAD4 exome

AF:

0.000918

AC:

1342

AN:

1461464

Hom.:

Cov.:

AF XY:

0.000865

AC XY:

629

AN XY:

727032

show subpopulations

Gnomad4 AFR exome

AF:

0.0201

Gnomad4 AMR exome

AF:

0.00183

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000396

Gnomad4 OTH exome

AF:

0.00224

GnomAD4 genome

AF:

0.00608

AC:

926

AN:

152262

Hom.:

Cov.:

AF XY:

0.00565

AC XY:

421

AN XY:

74448

show subpopulations

Gnomad4 AFR

AF:

0.0205

Gnomad4 AMR

AF:

0.00255

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000382

Gnomad4 OTH

AF:

0.00378

Alfa

AF:

0.00126

Hom.:

Bravo

AF:

0.00668

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000778

AC:

ESP6500AA

AF:

0.0156

AC:

ESP6500EA

AF:

0.000244

AC:

ExAC

AF:

0.00171

AC:

207

Asia WGS

AF:

0.00115

AC:

AN:

3478

EpiCase

AF:

0.000273

EpiControl

AF:

0.000178

ClinVar

Significance: Benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Mar 13, 2018

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

not provided

Benign:1

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Fetal akinesia deformation sequence 1;C4225368:Congenital myasthenic syndrome 9

Benign:1

Jan 30, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Congenital myasthenic syndrome 9

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.78

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.43

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Benign

0.068

T;.;.;.

Eigen

Benign

-0.37

Eigen_PC

Benign

-0.11

FATHMM_MKL

Uncertain

0.79

LIST_S2

Uncertain

0.93

D;D;D;D

MetaRNN

Benign

0.012

T;T;T;T

MetaSVM

Benign

-0.96

MutationAssessor

Benign

-0.81

N;.;.;.

PrimateAI

Benign

0.47

PROVEAN

Benign

1.6

N;.;.;.

REVEL

Benign

0.26

Sift

Benign

0.19

T;.;.;.

Sift4G

Benign

0.69

T;T;T;T

Polyphen

0.0010

B;.;.;.

Vest4

0.085

MVP

0.61

MPC

0.23

ClinPred

0.038

GERP RS

4.3

Varity_R

0.057

gMVP

0.74

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over