Genetic Variant DTNA:p.Arg589Pro (chr18-34875261-G-C) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_001386795.1(DTNA):c.1766G>C(p.Arg589Pro) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,704 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R589H) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

DTNA
NM_001386795.1 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.12

Publications

2 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:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.3262196).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DTNA	NM_001386795.1 link	c.1766G>C	p.Arg589Pro	missense_variant	Exon 18 of 23	ENST00000444659.6	NP_001373724.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DTNA	ENST00000444659.6 link	c.1766G>C	p.Arg589Pro	missense_variant	Exon 18 of 23	5	NM_001386795.1	ENSP00000405819.2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000399

AC:

AN:

250934

AF XY:

0.00000737

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:

0.0000464

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461704

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727132

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33474

American (AMR)

AF:

0.00

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53384

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5748

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111914

Other (OTH)

AF:

0.00

AC:

AN:

60380

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.56

BayesDel_addAF

Uncertain

0.040

BayesDel_noAF

Benign

-0.18

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.0

.;.;.;.;.;D;D;T;.;.;.

Eigen

Uncertain

0.39

Eigen_PC

Uncertain

0.49

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.94

D;D;D;D;.;D;.;D;D;D;D

M_CAP

Benign

0.015

MetaRNN

Benign

0.33

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

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.0

.;.;.;.;.;L;L;.;.;.;.

PhyloP100

4.1

PrimateAI

Uncertain

0.67

PROVEAN

Uncertain

-3.1

D;.;.;.;.;D;D;.;N;.;D

REVEL

Benign

0.15

Sift

Benign

0.057

T;.;.;.;.;T;T;.;D;.;D

Sift4G

Benign

0.10

T;T;T;T;T;T;T;D;D;T;T

Vest4

0.53

ClinPred

0.93

GERP RS

5.5

Varity_R

0.60

gMVP

0.42

Mutation Taster

=26/74

disease causing

(source)

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over