NM_001127453.2:c.712C>T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 8P and 9B. PVS1BP6BS1BS2

The NM_001127453.2(GSDME):c.712C>T(p.Arg238*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000258 in 1,614,064 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.00030 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00025 ( 0 hom. )

Consequence

GSDME
NM_001127453.2 stop_gained

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 0.527

Publications

3 publications found

Variant links:

Genes affected

GSDME (HGNC:2810): (gasdermin E) Hearing impairment is a heterogeneous condition with over 40 loci described. The protein encoded by this gene is expressed in fetal cochlea, however, its function is not known. Nonsyndromic hearing impairment is associated with a mutation in this gene. Three transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

GSDME Gene-Disease associations (from GenCC):

autosomal dominant nonsyndromic hearing loss
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
autosomal dominant nonsyndromic hearing loss 5
Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P

GSDME links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

BP6

Variant 7-24710374-G-A is Benign according to our data. Variant chr7-24710374-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 228558.

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000296 (45/152184) while in subpopulation AMR AF = 0.000393 (6/15282). AF 95% confidence interval is 0.00017. There are 0 homozygotes in GnomAd4. There are 35 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 45 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GSDME	NM_001127453.2 link	c.712C>T	p.Arg238*	stop_gained	Exon 6 of 10	ENST00000645220.1	NP_001120925.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GSDME	ENST00000645220.1 link	c.712C>T	p.Arg238*	stop_gained	Exon 6 of 10		NM_001127453.2	ENSP00000494186.1		O60443-1

Frequencies

GnomAD3 genomes

AF:

0.000296

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00273

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000525

AC:

132

AN:

251456

AF XY:

0.000537

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000607

Gnomad ASJ exome

AF:

0.0000992

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00397

Gnomad NFE exome

AF:

0.000185

Gnomad OTH exome

AF:

0.000489

GnomAD4 exome

AF:

0.000254

AC:

371

AN:

1461880

Hom.:

Cov.:

AF XY:

0.000248

AC XY:

180

AN XY:

727238

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33478

American (AMR)

AF:

0.000514

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.000191

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00371

AC:

198

AN:

53420

Middle Eastern (MID)

AF:

0.000520

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000108

AC:

120

AN:

1112004

Other (OTH)

AF:

0.000331

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.474

Heterozygous variant carriers

103

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000296

AC:

AN:

152184

Hom.:

Cov.:

AF XY:

0.000471

AC XY:

AN XY:

74342

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41436

American (AMR)

AF:

0.000393

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5196

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00273

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000132

AC:

AN:

68038

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.498

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000113

Hom.:

Bravo

AF:

0.0000907

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ExAC

AF:

0.000354

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000178

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

May 22, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Apr 11, 2022

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Nonsense variant predicted to result in protein truncation or nonsense mediated decay in a gene or region of a gene for which loss of function is not a well-established mechanism of disease; Has not been previously published as pathogenic or benign to our knowledge -

not specified

Uncertain:1

Feb 26, 2016

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant classified as Uncertain Significance - Favor Benign. The p.Arg238X varia nt in DFNA5 has not been previously reported in individuals with hearing loss, b ut has been identified in 0.4% (27/6614) of Finnish chromosomes by the Exome Agg regation consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs200758965). T his nonsense variant leads to a premature termination codon at position 238, whi ch is predicted to lead to a truncated or absent protein. However, only variants resulting in altered splicing and skipping of exon 8 have been reported to be c ausative for hearing loss through a gain of function mechanism of disease (Van L aer 2004). The p.Arg238X variant is located in exon 6 of DFNA5 and is expected t o result in loss of function (LoF), which is not a known mechanism of hearing lo ss in this gene. In fact, a frameshift variant in DFNA5 has been reported in mem bers of an Iranian family, in which the variant did not segregate with the heari ng loss (Van Laer 2007). In summary, while the clinical significance of the p.Ar g238X variant is uncertain, its frequency in the Finnish population and the lack of evidence supporting a LoF mechanism for hearing loss in DFNA5 suggests it is more likely to be benign. -

Autosomal dominant nonsyndromic hearing loss 5

Uncertain:1

Aug 19, 2021

Department of Pathology and Laboratory Medicine, Sinai Health System

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:research

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Pathogenic

0.29

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

Eigen

Uncertain

0.34

Eigen_PC

Benign

0.076

FATHMM_MKL

Benign

0.16

PhyloP100

0.53

Vest4

0.85

GERP RS

5.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.1

Mutation Taster

=16/184

disease causing (fs/PTC)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over