X-32464592-C-T

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_004006.3(DMD):​c.3270G>A​(p.Gln1090=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000118 in 1,190,401 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 6 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000071 ( 0 hom., 4 hem., cov: 22)
Exomes 𝑓: 0.0000056 ( 0 hom. 2 hem. )

Consequence

DMD
NM_004006.3 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.141
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 Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.53).
BP6
Variant X-32464592-C-T is Benign according to our data. Variant chrX-32464592-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 227308.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.141 with no splicing effect.
BS2
High Hemizygotes in GnomAd4 at 4 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DMDNM_004006.3 linkuse as main transcriptc.3270G>A p.Gln1090= synonymous_variant 24/79 ENST00000357033.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DMDENST00000357033.9 linkuse as main transcriptc.3270G>A p.Gln1090= synonymous_variant 24/791 NM_004006.3 P4

Frequencies

GnomAD3 genomes
AF:
0.0000715
AC:
8
AN:
111922
Hom.:
0
Cov.:
22
AF XY:
0.000117
AC XY:
4
AN XY:
34062
show subpopulations
Gnomad AFR
AF:
0.000228
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:
0.00
Gnomad OTH
AF:
0.000662
GnomAD3 exomes
AF:
0.0000218
AC:
4
AN:
183120
Hom.:
0
AF XY:
0.0000148
AC XY:
1
AN XY:
67688
show subpopulations
Gnomad AFR exome
AF:
0.000152
Gnomad AMR exome
AF:
0.0000730
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000556
AC:
6
AN:
1078479
Hom.:
0
Cov.:
27
AF XY:
0.00000578
AC XY:
2
AN XY:
346305
show subpopulations
Gnomad4 AFR exome
AF:
0.000115
Gnomad4 AMR exome
AF:
0.0000569
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000220
GnomAD4 genome
AF:
0.0000715
AC:
8
AN:
111922
Hom.:
0
Cov.:
22
AF XY:
0.000117
AC XY:
4
AN XY:
34062
show subpopulations
Gnomad4 AFR
AF:
0.000228
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000662
Bravo
AF:
0.0000453

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineMar 20, 2015p.Gln1090Gln in exon 24 of DMD: This variant is not expected to have clinical si gnificance because it does not alter an amino acid residue and is not located wi thin the splice consensus sequence. It has been identified in 2/8489 African chr omosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.o rg; dbSNP rs373475857). -
Duchenne muscular dystrophy;C0878544:Cardiomyopathy;C0917713:Becker muscular dystrophy;na:Dystrophin deficiency Benign:1
Likely benign, no assertion criteria providedclinical testingNatera, Inc.Jul 02, 2019- -
Duchenne muscular dystrophy Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeOct 22, 2023- -
Cardiovascular phenotype Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsJun 01, 2019This 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
BayesDel_noAF
Benign
-0.53
CADD
Benign
0.58
DANN
Benign
0.33

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: rs373475857; hg19: chrX-32482709; API