Genetic Variant DAG1:c.285+42T>C (chr3-49510861-T-C) – ACMG Classification: Benign (-20 pts)

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_004393.6(DAG1):c.285+42T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.996 in 1,609,634 control chromosomes in the GnomAD database, including 797,915 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.98 ( 72662 hom., cov: 31)

Exomes 𝑓: 1.0 ( 725253 hom. )

Consequence

DAG1
NM_004393.6 intron

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4O:1

Conservation

PhyloP100: -0.678

Variant links:

Genes affected

DAG1 (HGNC:2666): (dystroglycan 1) This gene encodes dystroglycan, a central component of dystrophin-glycoprotein complex that links the extracellular matrix and the cytoskeleton in the skeletal muscle. The encoded preproprotein undergoes O- and N-glycosylation, and proteolytic processing to generate alpha and beta subunits. Certain mutations in this gene are known to cause distinct forms of muscular dystrophy. Alternative splicing results in multiple transcript variants, all encoding the same protein. [provided by RefSeq, Nov 2015]

DAG1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.9).

BP6

Variant 3-49510861-T-C is Benign according to our data. Variant chr3-49510861-T-C is described in ClinVar as [Benign]. Clinvar id is 31753.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.993 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DAG1	NM_004393.6 link	c.285+42T>C		intron_variant	Intron 2 of 2	ENST00000308775.7	NP_004384.5	Q14118A0A024R2W4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DAG1	ENST00000308775.7 link	c.285+42T>C		intron_variant	Intron 2 of 2	1	NM_004393.6	ENSP00000312435.2		Q14118

Frequencies

GnomAD3 genomes

AF:

0.976

AC:

148535

AN:

152168

Hom.:

72607

Cov.:

show subpopulations

Gnomad AFR

AF:

0.916

Gnomad AMI

AF:

1.00

Gnomad AMR

AF:

0.992

Gnomad ASJ

AF:

1.00

Gnomad EAS

AF:

1.00

Gnomad SAS

AF:

1.00

Gnomad FIN

AF:

1.00

Gnomad MID

AF:

1.00

Gnomad NFE

AF:

1.00

Gnomad OTH

AF:

0.987

GnomAD3 exomes

AF:

0.994

AC:

239114

AN:

240596

Hom.:

118874

AF XY:

0.995

AC XY:

129642

AN XY:

130252

show subpopulations

Gnomad AFR exome

AF:

0.915

Gnomad AMR exome

AF:

0.996

Gnomad ASJ exome

AF:

1.00

Gnomad EAS exome

AF:

1.00

Gnomad SAS exome

AF:

1.00

Gnomad FIN exome

AF:

1.00

Gnomad NFE exome

AF:

1.00

Gnomad OTH exome

AF:

0.997

GnomAD4 exome

AF:

0.998

AC:

1453800

AN:

1457348

Hom.:

725253

Cov.:

AF XY:

0.998

AC XY:

722882

AN XY:

724396

show subpopulations

Gnomad4 AFR exome

AF:

0.914

Gnomad4 AMR exome

AF:

0.995

Gnomad4 ASJ exome

AF:

1.00

Gnomad4 EAS exome

AF:

1.00

Gnomad4 SAS exome

AF:

1.00

Gnomad4 FIN exome

AF:

1.00

Gnomad4 NFE exome

AF:

1.00

Gnomad4 OTH exome

AF:

0.995

GnomAD4 genome

AF:

0.976

AC:

148649

AN:

152286

Hom.:

72662

Cov.:

AF XY:

0.976

AC XY:

72694

AN XY:

74456

show subpopulations

Gnomad4 AFR

AF:

0.916

Gnomad4 AMR

AF:

0.992

Gnomad4 ASJ

AF:

1.00

Gnomad4 EAS

AF:

1.00

Gnomad4 SAS

AF:

1.00

Gnomad4 FIN

AF:

1.00

Gnomad4 NFE

AF:

1.00

Gnomad4 OTH

AF:

0.987

Alfa

AF:

0.992

Hom.:

8663

Bravo

AF:

0.974

Asia WGS

AF:

0.995

AC:

3462

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:4Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2Other:1

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

May 13, 2011

Leiden Muscular Dystrophy (DAG1)

Significance: not provided

Review Status: no classification provided

Collection Method: curation

- -

Jun 14, 2018

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. -

not specified

Benign:1

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Autosomal recessive limb-girdle muscular dystrophy type 2P

Benign:1

Jul 30, 2021

Genome-Nilou Lab

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.90

CADD

Benign

0.90

DANN

Benign

0.67

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over