rs201250825

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_000117.3(EMD):c.400G>A(p.Val134Met) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000661 in 1,210,488 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 2 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 18/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. V134V) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 0 hem., cov: 23)

Exomes 𝑓: 0.0000064 ( 0 hom. 2 hem. )

Consequence

EMD
NM_000117.3 missense, splice_region

Scores

Splicing: ADA: 0.0007252

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:1

Conservation

PhyloP100: 0.873

Publications

1 publications found

Variant links:

Genes affected

EMD (HGNC:3331): (emerin) Emerin is a serine-rich nuclear membrane protein and a member of the nuclear lamina-associated protein family. It mediates membrane anchorage to the cytoskeleton. Dreifuss-Emery muscular dystrophy is an X-linked inherited degenerative myopathy resulting from mutation in the emerin gene. [provided by RefSeq, Jul 2008]

EMD Gene-Disease associations (from GenCC):

X-linked Emery-Dreifuss muscular dystrophy
Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)
heart conduction disease
Inheritance: XL Classification: STRONG Submitted by: Genomics England PanelApp

EMD links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.13413393).

BS2

High Hemizygotes in GnomAdExome4 at 2 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EMD	NM_000117.3 link	c.400G>A	p.Val134Met	missense_variant, splice_region_variant	Exon 5 of 6	ENST00000369842.9	NP_000108.1	P50402

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EMD	ENST00000369842.9 link	c.400G>A	p.Val134Met	missense_variant, splice_region_variant	Exon 5 of 6	1	NM_000117.3	ENSP00000358857.4		P50402

Frequencies

GnomAD3 genomes

AF:

0.00000888

AC:

AN:

112579

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000188

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000546

AC:

AN:

183191

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000122

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000638

AC:

AN:

1097909

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

363393

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

26395

American (AMR)

AF:

0.00

AC:

AN:

35207

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19386

East Asian (EAS)

AF:

0.00

AC:

AN:

30206

South Asian (SAS)

AF:

0.00

AC:

AN:

54144

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40337

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4024

European-Non Finnish (NFE)

AF:

0.00000831

AC:

AN:

842137

Other (OTH)

AF:

0.00

AC:

AN:

46073

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

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:

0.00000888

AC:

AN:

112579

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34745

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31005

American (AMR)

AF:

0.00

AC:

AN:

10755

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2654

East Asian (EAS)

AF:

0.00

AC:

AN:

3574

South Asian (SAS)

AF:

0.00

AC:

AN:

2763

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6238

Middle Eastern (MID)

AF:

0.00

AC:

AN:

237

European-Non Finnish (NFE)

AF:

0.0000188

AC:

AN:

53156

Other (OTH)

AF:

0.00

AC:

AN:

1520

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.625

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

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:5Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Jul 16, 2019

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Has not been previously published as pathogenic or benign to our knowledge; In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function -

May 01, 2017

CeGaT Center for Human Genetics Tuebingen

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Emery-Dreifuss muscular dystrophy

Uncertain:1

Sep 16, 2020

Natera, Inc.

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Emery-Dreifuss muscular dystrophy 1, X-linked

Uncertain:1

May 31, 2019

Revvity Omics, Revvity

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

X-linked Emery-Dreifuss muscular dystrophy

Uncertain:1

Aug 30, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces valine with methionine at codon 134 of the EMD protein (p.Val134Met). The valine residue is highly conserved and there is a small physicochemical difference between valine and methionine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals affected with EMD-related conditions. ClinVar contains an entry for this variant (Variation ID: 444835). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The methionine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. -

Cardiovascular phenotype

Benign:1

Sep 18, 2024

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.41

CADD

Benign

(source)

DANN

Benign

0.53

DEOGEN2

Uncertain

0.47

T;T

FATHMM_MKL

Benign

0.24

LIST_S2

Benign

0.76

T;T

M_CAP

Benign

0.054

MetaRNN

Benign

0.13

T;T

MetaSVM

Benign

-0.62

MutationAssessor

Benign

1.2

L;.

PhyloP100

0.87

PrimateAI

Benign

0.45

PROVEAN

Benign

-0.62

N;N

REVEL

Benign

0.088

Sift

Benign

0.060

T;T

Sift4G

Pathogenic

0.0

D;D

Polyphen

0.057

B;.

Vest4

0.19

MutPred

0.33

Gain of catalytic residue at V134 (P = 0.2564);.;

MVP

0.73

MPC

0.39

ClinPred

0.032

GERP RS

1.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.064

gMVP

0.35

Mutation Taster

=90/10

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00073

dbscSNV1_RF

Benign

0.078

SpliceAI score (max)

0.11

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