Variant chr10-62813726-G-GGCT details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP3BS1_Supporting

The NM_000399.5(EGR2):c.909_911dupAGC(p.Ala304dup) variant causes a disruptive inframe insertion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000171 in 1,610,046 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

EGR2
NM_000399.5 disruptive_inframe_insertion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 1.15

Variant links:

Genes affected

EGR2 (HGNC:3239): (early growth response 2) The protein encoded by this gene is a transcription factor with three tandem C2H2-type zinc fingers. Defects in this gene are associated with Charcot-Marie-Tooth disease type 1D (CMT1D), Charcot-Marie-Tooth disease type 4E (CMT4E), and with Dejerine-Sottas syndrome (DSS). Multiple transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Oct 2008]

EGR2 links:

EGR2 (HGNC:):

EGR2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP3

Nonframeshift variant in repetitive region in NM_000399.5

BS1

Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.0000789 (12/152104) while in subpopulation SAS AF= 0.000207 (1/4830). AF 95% confidence interval is 0.0000477. There are 0 homozygotes in gnomad4. There are 2 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
EGR2	NM_000399.5 linkuse as main transcript	c.909_911dupAGC	p.Ala304dup	disruptive_inframe_insertion	2/2	ENST00000242480.4	NP_000390.2	P11161-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
EGR2	ENST00000242480.4 linkuse as main transcript	c.909_911dupAGC	p.Ala304dup	disruptive_inframe_insertion	2/2	1	NM_000399.5	ENSP00000242480.3		P11161-1

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

152104

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000103

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000850

AC:

AN:

235206

Hom.:

AF XY:

0.000101

AC XY:

AN XY:

129122

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000119

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000133

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000947

Gnomad OTH exome

AF:

0.000348

GnomAD4 exome

AF:

0.000180

AC:

263

AN:

1457942

Hom.:

Cov.:

AF XY:

0.000179

AC XY:

130

AN XY:

725206

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000134

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000756

Gnomad4 SAS exome

AF:

0.000128

Gnomad4 FIN exome

AF:

0.0000196

Gnomad4 NFE exome

AF:

0.000215

Gnomad4 OTH exome

AF:

0.0000332

GnomAD4 genome

AF:

0.0000789

AC:

AN:

152104

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74294

show subpopulations

Gnomad4 AFR

AF:

0.0000724

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000103

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Mar 27, 2023	Observed in an individual with Charcot-Marie-Tooth disease in published literature; however, no further clinical information was provided (Volodarsky et al., 2021); In silico analysis supports that this variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 32376792) -
Uncertain significance, criteria provided, single submitter	clinical testing	Athena Diagnostics	May 03, 2024	Available data are insufficient to determine the clinical significance of the variant at this time. The frequency of this variant in the general population is higher than would generally be expected for pathogenic variants in this gene. (http://gnomad.broadinstitute.org) Computational tools yielded predictions that this variant is unlikely to have an effect on normal RNA splicing. -

Charcot-Marie-Tooth disease

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Molecular Genetics Laboratory, London Health Sciences Centre

- -

Charcot-Marie-Tooth disease, type I

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Apr 24, 2023

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. ClinVar contains an entry for this variant (Variation ID: 419028). This variant has been observed in individual(s) with clinical features of Charcot-Marie-Tooth disease (PMID: 32376792). This variant is present in population databases (rs746688326, gnomAD 0.01%). This variant, c.909_911dup, results in the insertion of 1 amino acid(s) of the EGR2 protein (p.Ala309dup), but otherwise preserves the integrity of the reading frame. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

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