chrX-31223083-C-A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4BP6BS2_Supporting

The NM_004006.3(DMD):c.9325G>T(p.Ala3109Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000128 in 1,209,508 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 39 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000071 ( 0 hom., 0 hem., cov: 23)

Exomes 𝑓: 0.00013 ( 0 hom. 39 hem. )

Consequence

DMD
NM_004006.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: 6.92

Publications

1 publications found

Variant links:

Genes affected

DMD (HGNC:2928): (dystrophin) This gene spans a genomic range of greater than 2 Mb and encodes a large protein containing an N-terminal actin-binding domain and multiple spectrin repeats. The encoded protein forms a component of the dystrophin-glycoprotein complex (DGC), which bridges the inner cytoskeleton and the extracellular matrix. Deletions, duplications, and point mutations at this gene locus may cause Duchenne muscular dystrophy (DMD), Becker muscular dystrophy (BMD), or cardiomyopathy. Alternative promoter usage and alternative splicing result in numerous distinct transcript variants and protein isoforms for this gene. [provided by RefSeq, Dec 2016]

DMD Gene-Disease associations (from GenCC):

Becker muscular dystrophy
Inheritance: XL Classification: DEFINITIVE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet
dilated cardiomyopathy 3B
Inheritance: XL Classification: DEFINITIVE Submitted by: Ambry Genetics
Duchenne and Becker muscular dystrophy
Inheritance: XL Classification: DEFINITIVE Submitted by: Myriad Women’s Health
Duchenne muscular dystrophy
Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P, Orphanet
progressive muscular dystrophy
Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
familial isolated dilated cardiomyopathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
non-syndromic X-linked intellectual disability
Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
symptomatic form of muscular dystrophy of Duchenne and Becker in female carriers
Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet

DMD links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.2686102).

BP6

Variant X-31223083-C-A is Benign according to our data. Variant chrX-31223083-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 239613.

BS2

High AC in GnomAd4 at 8 XL,AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DMD	NM_004006.3 link	c.9325G>T	p.Ala3109Ser	missense_variant	Exon 64 of 79	ENST00000357033.9	NP_003997.2	P11532

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DMD	ENST00000357033.9 link	c.9325G>T	p.Ala3109Ser	missense_variant	Exon 64 of 79	1	NM_004006.3	ENSP00000354923.3		A0A075B6G3

Frequencies

GnomAD3 genomes

AF:

0.0000715

AC:

AN:

111861

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000325

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:

0.000132

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000763

AC:

AN:

183502

AF XY:

0.0000883

show subpopulations

Gnomad AFR exome

AF:

0.0000760

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:

0.000159

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000134

AC:

147

AN:

1097596

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

362968

show subpopulations

African (AFR)

AF:

0.0000379

AC:

AN:

26390

American (AMR)

AF:

0.00

AC:

AN:

35205

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19377

East Asian (EAS)

AF:

0.00

AC:

AN:

30197

South Asian (SAS)

AF:

0.00

AC:

AN:

54136

European-Finnish (FIN)

AF:

0.0000247

AC:

AN:

40515

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4133

European-Non Finnish (NFE)

AF:

0.000170

AC:

143

AN:

841573

Other (OTH)

AF:

0.0000434

AC:

AN:

46070

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.443

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:

0.0000715

AC:

AN:

111912

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34076

show subpopulations

African (AFR)

AF:

0.0000325

AC:

AN:

30807

American (AMR)

AF:

0.00

AC:

AN:

10559

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2650

East Asian (EAS)

AF:

0.00

AC:

AN:

3586

South Asian (SAS)

AF:

0.00

AC:

AN:

2632

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6051

Middle Eastern (MID)

AF:

0.00

AC:

AN:

214

European-Non Finnish (NFE)

AF:

0.000132

AC:

AN:

53213

Other (OTH)

AF:

0.00

AC:

AN:

1515

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.531

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:

0.0000267

Hom.:

Bravo

AF:

0.0000453

ExAC

AF:

0.000148

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

May 31, 2016

Eurofins Ntd Llc (ga)

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Mar 01, 2023

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

DMD: BS2 -

Duchenne muscular dystrophy;C0878544:Cardiomyopathy;C0917713:Becker muscular dystrophy;na:Dystrophin deficiency

Benign:1

Jun 24, 2020

Natera, Inc.

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Duchenne muscular dystrophy

Benign:1

Oct 17, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Cardiovascular phenotype

Benign:1

Oct 14, 2021

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

Uncertain

0.46

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.16

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.49

.;.;T;T;T;.;.;T;.;.;.;T;.;.

FATHMM_MKL

Uncertain

0.96

LIST_S2

Pathogenic

0.98

D;D;.;.;.;.;D;.;D;D;D;.;D;D

M_CAP

Uncertain

0.17

MetaRNN

Benign

0.27

T;T;T;T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.30

PhyloP100

6.9

PrimateAI

Pathogenic

0.84

PROVEAN

Uncertain

-2.6

D;N;N;D;N;D;.;N;.;N;D;D;D;N

REVEL

Uncertain

0.47

Sift

Benign

0.12

T;D;T;D;D;D;.;D;.;D;T;D;T;T

Sift4G

Benign

0.081

T;D;T;T;T;T;D;D;D;D;T;T;T;T

Polyphen

0.044, 0.34, 0.039, 0.17, 0.98

.;.;.;B;B;B;.;B;.;.;.;B;D;.

Vest4

0.80

MVP

0.81

MPC

0.051

ClinPred

0.24

GERP RS

5.2

gMVP

0.69

Mutation Taster

=71/29

polymorphism

(source)

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

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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