7-24706249-C-T

Position:

• chr7-24706249-C-T

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_Strong BP6 BS2

The NM_001127453.2(GSDME):​c.1118G>A​(p.Gly373Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000489 in 1,614,104 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.00026 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000027 (0 hom.)
• Consequence: GSDME NM_001127453.2 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:2
• Conservation: PhyloP100: 0.531

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]

ACMG classification

Verdict is Benign. Variant got -9 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.033106416).
• BP6: Variant 7-24706249-C-T is Benign according to our data. Variant chr7-24706249-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 178334.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.
• BS2: High AC in GnomAd4 at 40 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GSDME	NM_001127453.2	c.1118G>A	p.Gly373Asp	missense_variant	8/10	ENST00000645220.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GSDME	ENST00000645220.1	c.1118G>A	p.Gly373Asp	missense_variant	8/10		NM_001127453.2	P1

Frequencies

GnomAD3 genomes AF: 0.000263 AC: 40 AN: 152220 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.000965

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000557 AC: 14 AN: 251442 Hom.: 0 AF XY: 0.0000147 AC XY: 2 AN XY: 135906

Gnomad AFR exome AF: 0.000800

Gnomad AMR exome AF: 0.00

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: 0.00000879

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000267 AC: 39 AN: 1461884 Hom.: 0 Cov.: 31 AF XY: 0.0000206 AC XY: 15 AN XY: 727240

Gnomad4 AFR exome AF: 0.00105

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000270

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome AF: 0.000263 AC: 40 AN: 152220 Hom.: 0 Cov.: 33 AF XY: 0.000242 AC XY: 18 AN XY: 74364

Gnomad4 AFR AF: 0.000965

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000683 Hom.: 0

Bravo AF: 0.000257

ESP6500AA AF: 0.000681 AC: 3

ESP6500EA AF: 0.00 AC: 0

ExAC AF: 0.0000576 AC: 7

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:2

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not provided Benign:2

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Feb 13, 2019	- -
Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 16, 2024	- -

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Jun 03, 2014

Variant classified as Uncertain Significance - Favor Benign. The Gly373Asp varia nt in DFNA5 has not been previously reported in individuals with hearing loss, b ut has been identified in 0.07% (3/4406) of African American chromosomes by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS/;dbSNP rs146399 987). The glycine (Gly) at position 373 is not well conserved across species and the change to an aspartate (Asp) has been identified in dogs, suggesting that t his variant might be tolerated. Other computational prediction tools suggest tha t the Gly373Asp variant may not impact the protein, though this information is n ot predictive enough to rule out pathogenicity. In summary, the clinical signifi cance of this variant cannot be determined with certainty; however based upon th e arguments described above, we would lean towards a more likely benign role. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.39	T
BayesDel_noAF	Benign	-0.40
CADD	Benign	5.0
DANN	Benign	0.43
DEOGEN2	Benign	0.11	T;T;.;.;T
Eigen	Benign	-0.89
Eigen_PC	Benign	-0.93
FATHMM_MKL	Benign	0.043	N
LIST_S2	Benign	0.58	.;.;.;T;T
M_CAP	Benign	0.015	T
MetaRNN	Benign	0.033	T;T;T;T;T
MetaSVM	Benign	-1.0	T
MutationTaster	Benign	1.0	N;N;N;N;N
PrimateAI	Benign	0.28	T
PROVEAN	Benign	-1.1	N;.;N;N;N
REVEL	Benign	0.089
Sift	Benign	0.22	T;.;T;T;T
Sift4G	Benign	0.63	T;.;T;T;T
Polyphen		0.20	B;B;.;.;B
Vest4		0.22
MVP		0.67
MPC		0.052
ClinPred		0.015	T
GERP RS		1.8
Varity_R		0.030
gMVP		0.31

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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

Other links and lift over

dbSNP: rs146399987; hg19: chr7-24745868;