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rs757350813

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_004006.3(DMD):c.4561A>G(p.Met1521Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000497 in 1,206,493 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M1521I) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000090 ( 0 hom., 0 hem., cov: 22)
Exomes 𝑓: 0.0000046 ( 0 hom. 1 hem. )

Consequence

DMD
NM_004006.3 missense

Scores

4
8

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 6.27
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.23194554).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DMDNM_004006.3 linkuse as main transcriptc.4561A>G p.Met1521Val missense_variant 33/79 ENST00000357033.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DMDENST00000357033.9 linkuse as main transcriptc.4561A>G p.Met1521Val missense_variant 33/791 NM_004006.3 P4

Frequencies

GnomAD3 genomes
AF:
0.00000901
AC:
1
AN:
111006
Hom.:
0
Cov.:
22
AF XY:
0.00
AC XY:
0
AN XY:
33414
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:
0.000281
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
GnomAD4 exome
AF:
0.00000456
AC:
5
AN:
1095487
Hom.:
0
Cov.:
29
AF XY:
0.00000277
AC XY:
1
AN XY:
361625
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000332
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000870
GnomAD4 genome
AF:
0.00000901
AC:
1
AN:
111006
Hom.:
0
Cov.:
22
AF XY:
0.00
AC XY:
0
AN XY:
33414
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000281
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Duchenne muscular dystrophy;C0878544:Cardiomyopathy;C0917713:Becker muscular dystrophy;na:Dystrophin deficiency Uncertain:1
Uncertain significance, no assertion criteria providedclinical testingNatera, Inc.Nov 25, 2020- -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Dec 05, 2016- -
Duchenne muscular dystrophy Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeMay 19, 2022This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 1521 of the DMD protein (p.Met1521Val). This variant is present in population databases (rs757350813, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with DMD-related conditions. ClinVar contains an entry for this variant (Variation ID: 455900). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.67
Cadd
Benign
22
Dann
Benign
0.96
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.86
D;.;D;D
M_CAP
Uncertain
0.20
D
MetaRNN
Benign
0.23
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
0.98
N;N
PrimateAI
Uncertain
0.63
T
Sift4G
Benign
0.27
T;T;T;T
Polyphen
0.0060
.;B;.;.
Vest4
0.29
MutPred
0.36
.;.;Loss of helix (P = 0.079);Loss of helix (P = 0.079);
MVP
0.49
MPC
0.022
ClinPred
0.18
T
GERP RS
5.5
gMVP
0.20

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.

Other links and lift over

dbSNP: rs757350813; hg19: chrX-32404540; API