rs16998350

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_004006.3(DMD):​c.2143A>T​(p.Thr715Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00109 in 1,209,230 control chromosomes in the GnomAD database, including 15 homozygotes. There are 355 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T715P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0055 ( 7 hom., 175 hem., cov: 23)
Exomes 𝑓: 0.00063 ( 8 hom. 180 hem. )

Consequence

DMD
NM_004006.3 missense

Scores

15

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:14

Conservation

PhyloP100: 0.661

Publications

2 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0054530203).
BP6
Variant X-32545184-T-A is Benign according to our data. Variant chrX-32545184-T-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 94494.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00555 (621/111960) while in subpopulation AFR AF = 0.0194 (597/30852). AF 95% confidence interval is 0.0181. There are 7 homozygotes in GnomAd4. There are 175 alleles in the male GnomAd4 subpopulation. Median coverage is 23. This position passed quality control check.
BS2
High AC in GnomAd4 at 621 XL,AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DMDNM_004006.3 linkc.2143A>T p.Thr715Ser missense_variant Exon 17 of 79 ENST00000357033.9 NP_003997.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DMDENST00000357033.9 linkc.2143A>T p.Thr715Ser missense_variant Exon 17 of 79 1 NM_004006.3 ENSP00000354923.3

Frequencies

GnomAD3 genomes
AF:
0.00557
AC:
623
AN:
111908
Hom.:
7
Cov.:
23
show subpopulations
Gnomad AFR
AF:
0.0195
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00124
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:
0.0000752
Gnomad OTH
AF:
0.00465
GnomAD2 exomes
AF:
0.00171
AC:
313
AN:
182707
AF XY:
0.00117
show subpopulations
Gnomad AFR exome
AF:
0.0199
Gnomad AMR exome
AF:
0.00139
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000614
Gnomad OTH exome
AF:
0.00178
GnomAD4 exome
AF:
0.000632
AC:
693
AN:
1097270
Hom.:
8
Cov.:
31
AF XY:
0.000496
AC XY:
180
AN XY:
362840
show subpopulations
African (AFR)
AF:
0.0196
AC:
517
AN:
26360
American (AMR)
AF:
0.00128
AC:
45
AN:
35177
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19365
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30193
South Asian (SAS)
AF:
0.00
AC:
0
AN:
54122
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40496
Middle Eastern (MID)
AF:
0.000243
AC:
1
AN:
4110
European-Non Finnish (NFE)
AF:
0.0000879
AC:
74
AN:
841404
Other (OTH)
AF:
0.00122
AC:
56
AN:
46043
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.481
Heterozygous variant carriers
0
28
56
85
113
141
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00555
AC:
621
AN:
111960
Hom.:
7
Cov.:
23
AF XY:
0.00512
AC XY:
175
AN XY:
34154
show subpopulations
African (AFR)
AF:
0.0194
AC:
597
AN:
30852
American (AMR)
AF:
0.00124
AC:
13
AN:
10513
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2642
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3549
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2701
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6109
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
218
European-Non Finnish (NFE)
AF:
0.0000752
AC:
4
AN:
53166
Other (OTH)
AF:
0.00459
AC:
7
AN:
1525
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.498
Heterozygous variant carriers
0
23
47
70
94
117
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.000304
Hom.:
1
Bravo
AF:
0.00635
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.0149
AC:
57
ESP6500EA
AF:
0.000149
AC:
1
ExAC
AF:
0.00183
AC:
222
EpiCase
AF:
0.000273
EpiControl
AF:
0.0000594

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:14
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:6
Aug 19, 2023
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Sep 23, 2014
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Nov 17, 2014
Eurofins Ntd Llc (ga)
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 13, 2015
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

p.Thr715Ser in exon 17 of DMD: This variant is not expected to have clinical sig nificance because it has been identified in 1.5% (57/3833) of African American c hromosomes by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/E VS/; dbSNP rs16998350). -

-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

not provided Benign:4
May 04, 2017
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

-
Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Oct 16, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Duchenne muscular dystrophy;C0878544:Cardiomyopathy;C0917713:Becker muscular dystrophy;na:Dystrophin deficiency Benign:1
Apr 20, 2017
Natera, Inc.
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Dilated cardiomyopathy 3B Benign:1
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to rule this variant out of causing disease. Therefore, this variant is classified as benign. -

Cardiovascular phenotype Benign:1
Dec 02, 2015
Ambry Genetics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as 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. -

Duchenne muscular dystrophy Benign:1
Jan 29, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.70
T
BayesDel_noAF
Benign
-0.76
CADD
Benign
15
DANN
Benign
0.93
DEOGEN2
Benign
0.22
.;T;.;.;T
FATHMM_MKL
Benign
0.72
D
LIST_S2
Benign
0.70
T;.;T;T;T
MetaRNN
Benign
0.0055
T;T;T;T;T
MetaSVM
Benign
-1.0
T
PhyloP100
0.66
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-0.32
.;N;.;N;N
REVEL
Benign
0.031
Sift
Benign
0.41
.;T;.;T;T
Sift4G
Benign
0.40
T;T;T;T;T
Polyphen
0.0030, 0.012
.;B;.;.;B
Vest4
0.11
MutPred
0.26
.;.;Loss of methylation at K710 (P = 0.0847);Loss of methylation at K710 (P = 0.0847);.;
MVP
0.54
MPC
0.015
ClinPred
0.0034
T
GERP RS
0.10
gMVP
0.11
Mutation Taster
=99/1
polymorphism (auto)

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

Other links and lift over

dbSNP: rs16998350; hg19: chrX-32563301; API