rs149218670

Positions:

chr3-49510812-T-C

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_004393.6(DAG1):c.278T>C(p.Ile93Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000168 in 1,614,168 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00098 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000083 ( 1 hom. )

Consequence

DAG1
NM_004393.6 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:5

Conservation

PhyloP100: 0.925

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:

DAG1 (HGNC:):

DAG1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.009460151).

BP6

Variant 3-49510812-T-C is Benign according to our data. Variant chr3-49510812-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 281825.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DAG1	NM_004393.6 linkuse as main transcript	c.278T>C	p.Ile93Thr	missense_variant	2/3	ENST00000308775.7	NP_004384.5	Q14118A0A024R2W4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DAG1	ENST00000308775.7 linkuse as main transcript	c.278T>C	p.Ile93Thr	missense_variant	2/3	1	NM_004393.6	ENSP00000312435.2		Q14118

Frequencies

GnomAD3 genomes

AF:

0.000972

AC:

148

AN:

152188

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00328

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000655

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:

0.0000147

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000231

AC:

AN:

250684

Hom.:

AF XY:

0.000199

AC XY:

AN XY:

135500

show subpopulations

Gnomad AFR exome

AF:

0.00326

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000654

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000835

AC:

122

AN:

1461862

Hom.:

Cov.:

AF XY:

0.0000825

AC XY:

AN XY:

727226

show subpopulations

Gnomad4 AFR exome

AF:

0.00293

Gnomad4 AMR exome

AF:

0.000134

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000360

Gnomad4 OTH exome

AF:

0.000166

GnomAD4 genome

AF:

0.000978

AC:

149

AN:

152306

Hom.:

Cov.:

AF XY:

0.000953

AC XY:

AN XY:

74486

show subpopulations

Gnomad4 AFR

AF:

0.00330

Gnomad4 AMR

AF:

0.000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000165

Hom.:

Bravo

AF:

0.00107

ESP6500AA

AF:

0.00386

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000255

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:5

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Revvity Omics, Revvity	May 17, 2023	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Nov 16, 2020	This variant is associated with the following publications: (PMID: 30564623) -
Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Jul 19, 2018	- -

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 30, 2024

This 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. -

Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type A9;C4511963:Autosomal recessive limb-girdle muscular dystrophy type 2P

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 30, 2023

- -

DAG1-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Feb 03, 2022

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

AlphaMissense

Benign

0.083

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Uncertain

-0.080

CADD

Benign

DANN

Benign

0.73

DEOGEN2

Benign

0.33

T;T;T;T;T;T;T;.;T

Eigen

Benign

-0.72

Eigen_PC

Benign

-0.51

FATHMM_MKL

Benign

0.19

LIST_S2

Benign

0.59

T;T;.;.;.;.;.;T;T

M_CAP

Benign

0.061

MetaRNN

Benign

0.0095

T;T;T;T;T;T;T;T;T

MetaSVM

Uncertain

-0.10

MutationAssessor

Benign

0.050

N;.;N;N;N;N;N;.;.

PrimateAI

Benign

0.41

PROVEAN

Benign

-0.69

N;N;N;N;N;N;N;N;N

REVEL

Uncertain

0.37

Sift

Benign

0.80

T;T;T;T;T;T;T;T;T

Sift4G

Benign

0.43

T;T;T;T;T;T;T;T;T

Polyphen

0.0

B;.;B;B;B;B;B;.;.

Vest4

0.054

MVP

0.61

MPC

0.34

ClinPred

0.0034

GERP RS

4.3

Varity_R

0.15

gMVP

0.40

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