rs749732729

Positions:

chrX-32380593-C-A

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_004006.3(DMD):c.4762G>T(p.Ala1588Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000414 in 1,207,872 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 21 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 11/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A1588V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., 0 hem., cov: 23)

Exomes 𝑓: 0.000043 ( 0 hom. 21 hem. )

Consequence

DMD
NM_004006.3 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 5.02

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.10135156).

BP6

Variant X-32380593-C-A is Benign according to our data. Variant chrX-32380593-C-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 526058.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.

BS2

High Hemizygotes in GnomAdExome4 at 21 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
DMD	NM_004006.3 linkuse as main transcript	c.4762G>T	p.Ala1588Ser	missense_variant	34/79	ENST00000357033.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DMD	ENST00000357033.9 linkuse as main transcript	c.4762G>T	p.Ala1588Ser	missense_variant	34/79	1	NM_004006.3	P4

Frequencies

GnomAD3 genomes

AF:

0.0000269

AC:

AN:

111374

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33630

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:

0.000371

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000378

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000493

AC:

AN:

182629

Hom.:

AF XY:

0.0000297

AC XY:

AN XY:

67309

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 SAS exome

AF:

0.000472

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000429

AC:

AN:

1096498

Hom.:

Cov.:

AF XY:

0.0000580

AC XY:

AN XY:

362154

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000592

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000119

Gnomad4 OTH exome

AF:

0.000109

GnomAD4 genome

AF:

0.0000269

AC:

AN:

111374

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33630

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000371

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000378

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ExAC

AF:

0.0000494

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Cardiovascular phenotype

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 09, 2022

The p.A1588S variant (also known as c.4762G>T), located in coding exon 34 of the DMD gene, results from a G to T substitution at nucleotide position 4762. The alanine at codon 1588 is replaced by serine, an amino acid with similar properties. Based on data from gnomAD, the T allele has an overall frequency of 0.0049% (10/204302) total alleles studied, with 2 hemizygote(s) observed. The highest observed frequency was 0.0472% (9/19069) of South Asian alleles. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

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

Benign:1

Likely benign, no assertion criteria provided

clinical testing

Natera, Inc.

Sep 03, 2020

- -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

May 01, 2024

DMD: BP4 -

Duchenne muscular dystrophy

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Invitae

Nov 28, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.44

CADD

Benign

DANN

Uncertain

0.99

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.78

T;.;T;T

M_CAP

Benign

0.039

MetaRNN

Benign

0.10

T;T;T;T

MetaSVM

Benign

-0.89

MutationTaster

Benign

1.0

D;D

PrimateAI

Benign

0.31

Sift4G

Benign

0.45

T;T;T;T

Polyphen

1.0

.;D;.;.

Vest4

0.31

MutPred

0.23

.;.;Gain of phosphorylation at A1588 (P = 0.0576);Gain of phosphorylation at A1588 (P = 0.0576);

MVP

0.74

MPC

0.094

ClinPred

0.15

GERP RS

5.4

gMVP

0.097

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

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