18-34756027-G-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_ModerateBP6_Very_StrongBS2

The NM_001386795.1(DTNA):c.51G>A(p.Gln17Gln) variant causes a synonymous change. The variant allele was found at a frequency of 0.000155 in 1,613,270 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00031 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00014 ( 0 hom. )

Consequence

DTNA
NM_001386795.1 synonymous

Scores

Clinical Significance

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

Conservation

PhyloP100: 4.00

Publications

0 publications found

Variant links:

Genes affected

DTNA (HGNC:3057): (dystrobrevin alpha) The protein encoded by this gene belongs to the dystrobrevin subfamily of the dystrophin family. This protein is a component of the dystrophin-associated protein complex (DPC), which consists of dystrophin and several integral and peripheral membrane proteins, including dystroglycans, sarcoglycans, syntrophins and alpha- and beta-dystrobrevin. The DPC localizes to the sarcolemma and its disruption is associated with various forms of muscular dystrophy. Mutations in this gene are associated with left ventricular noncompaction with congenital heart defects. Multiple alternatively spliced transcript variants encoding different isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]

DTNA Gene-Disease associations (from GenCC):

dilated cardiomyopathy
Inheritance: AD Classification: LIMITED Submitted by: ClinGen
left ventricular noncompaction 1
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
Meniere disease
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
congenital heart disease
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

DTNA links:

ENSG00000268873 (HGNC:58208):

ENSG00000268873 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.44).

BP6

Variant 18-34756027-G-A is Benign according to our data. Variant chr18-34756027-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 46425.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High AC in GnomAd4 at 47 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001386795.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
DTNA	NM_001386795.1	MANE Select	c.51G>A	p.Gln17Gln	synonymous	Exon 2 of 23	NP_001373724.1
DTNA	NM_001386788.1		c.51G>A	p.Gln17Gln	synonymous	Exon 2 of 23	NP_001373717.1
DTNA	NM_001390.5		c.51G>A	p.Gln17Gln	synonymous	Exon 1 of 22	NP_001381.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
DTNA	ENST00000444659.6	TSL:5 MANE Select	c.51G>A	p.Gln17Gln	synonymous	Exon 2 of 23	ENSP00000405819.2
DTNA	ENST00000598334.5	TSL:1	c.51G>A	p.Gln17Gln	synonymous	Exon 3 of 20	ENSP00000470152.1
DTNA	ENST00000399121.9	TSL:1	c.51G>A	p.Gln17Gln	synonymous	Exon 3 of 22	ENSP00000382072.5

Frequencies

GnomAD3 genomes

AF:

0.000309

AC:

AN:

152192

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00203

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000191

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000271

AC:

AN:

250854

AF XY:

0.000295

show subpopulations

Gnomad AFR exome

AF:

0.0000616

Gnomad AMR exome

AF:

0.00101

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000220

Gnomad OTH exome

AF:

0.00114

GnomAD4 exome

AF:

0.000139

AC:

203

AN:

1460960

Hom.:

Cov.:

AF XY:

0.000153

AC XY:

111

AN XY:

726822

show subpopulations

African (AFR)

AF:

0.000299

AC:

AN:

33448

American (AMR)

AF:

0.000962

AC:

AN:

44712

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26114

East Asian (EAS)

AF:

0.00

AC:

AN:

39604

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86234

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53188

Middle Eastern (MID)

AF:

0.00243

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.000101

AC:

112

AN:

1111540

Other (OTH)

AF:

0.000381

AC:

AN:

60356

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.445

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.000309

AC:

AN:

152310

Hom.:

Cov.:

AF XY:

0.000376

AC XY:

AN XY:

74486

show subpopulations

African (AFR)

AF:

0.0000240

AC:

AN:

41584

American (AMR)

AF:

0.00203

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000191

AC:

AN:

68020

Other (OTH)

AF:

0.000473

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<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:

0.000150

Hom.:

Bravo

AF:

0.000325

EpiCase

AF:

0.000218

EpiControl

AF:

0.000237

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

Jul 03, 2025

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Jun 04, 2018

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.Gln17Gln variant in DTNA variant is classified as likely benign because it does not alter an amino acid residue, is not located within the splice consensu s sequence, and computational tools do not suggest a splicing impact. It has bee n identified in 0.02% (71/276606) of chromosomes by the Genome Aggregation Datab ase (gnomAD; http://gnomad.broadinstitute.org; dbSNP rs368000651). ACMG/AMP Crit eria applied: BS1, BP4, BP7.

not provided

Benign:1

Nov 04, 2020

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Left ventricular noncompaction 1

Benign:1

Dec 19, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.44

CADD

Benign

9.1

(source)

DANN

Benign

0.66

PhyloP100

4.0

PromoterAI

-0.031

Neutral

(source)

Mutation Taster

=298/2

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over