chrX-31266835-C-A

Variant summary

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

The ENST00000378723.7(DMD):​c.-6G>T variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000541 in 1,204,289 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 202 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00031 ( 0 hom., 11 hem., cov: 22)
Exomes 𝑓: 0.00056 ( 0 hom. 191 hem. )

Consequence

DMD
ENST00000378723.7 5_prime_UTR

Scores

2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1B:1

Conservation

PhyloP100: 0.744

Publications

0 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: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.31).
BS2
High AC in GnomAd4 at 34 XL,AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DMDNM_004006.3 linkc.9225-5819G>T intron_variant Intron 62 of 78 ENST00000357033.9 NP_003997.2 P11532

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DMDENST00000357033.9 linkc.9225-5819G>T intron_variant Intron 62 of 78 1 NM_004006.3 ENSP00000354923.3 A0A075B6G3

Frequencies

GnomAD3 genomes
AF:
0.000305
AC:
34
AN:
111311
Hom.:
0
Cov.:
22
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000936
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:
0.000624
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000340
AC:
57
AN:
167649
AF XY:
0.000354
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:
0.0000702
Gnomad NFE exome
AF:
0.000766
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000565
AC:
617
AN:
1092934
Hom.:
0
Cov.:
30
AF XY:
0.000532
AC XY:
191
AN XY:
359350
show subpopulations
African (AFR)
AF:
0.0000761
AC:
2
AN:
26282
American (AMR)
AF:
0.00
AC:
0
AN:
34826
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19285
East Asian (EAS)
AF:
0.00
AC:
0
AN:
29995
South Asian (SAS)
AF:
0.00
AC:
0
AN:
53208
European-Finnish (FIN)
AF:
0.000175
AC:
7
AN:
39905
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4114
European-Non Finnish (NFE)
AF:
0.000675
AC:
567
AN:
839534
Other (OTH)
AF:
0.000895
AC:
41
AN:
45785
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.473
Heterozygous variant carriers
0
23
45
68
90
113
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:
0.000305
AC:
34
AN:
111355
Hom.:
0
Cov.:
22
AF XY:
0.000326
AC XY:
11
AN XY:
33707
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30636
American (AMR)
AF:
0.0000935
AC:
1
AN:
10699
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2639
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3481
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2644
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
5970
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
212
European-Non Finnish (NFE)
AF:
0.000624
AC:
33
AN:
52885
Other (OTH)
AF:
0.00
AC:
0
AN:
1516
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
2
4
6
8
10
<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:
0.000564
Hom.:
3
Bravo
AF:
0.000276

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Jun 23, 2015
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant classified as Uncertain Significance - Favor Benign. -

DMD-related disorder Benign:1
Mar 21, 2024
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.31
CADD
Benign
18
DANN
Benign
0.94
PhyloP100
0.74
PromoterAI
-0.086
Neutral
Mutation Taster
=99/1
polymorphism

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: rs377152944; hg19: chrX-31284952; API