rs190619495

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_001386795.1(DTNA):​c.1454G>C​(p.Ser485Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000954 in 1,614,060 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000097 ( 1 hom. )

Consequence

DTNA
NM_001386795.1 missense

Scores

1
18

Clinical Significance

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

Conservation

PhyloP100: 3.24
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0076033473).
BP6
Variant 18-34851850-G-C is Benign according to our data. Variant chr18-34851850-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 201762.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAd4 at 12 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DTNANM_001386795.1 linkc.1454G>C p.Ser485Thr missense_variant Exon 15 of 23 ENST00000444659.6 NP_001373724.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DTNAENST00000444659.6 linkc.1454G>C p.Ser485Thr missense_variant Exon 15 of 23 5 NM_001386795.1 ENSP00000405819.2 Q9Y4J8-17A0A7P0TBH9

Frequencies

GnomAD3 genomes
AF:
0.0000788
AC:
12
AN:
152226
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000720
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:
0.000478
GnomAD3 exomes
AF:
0.000541
AC:
136
AN:
251168
Hom.:
1
AF XY:
0.000361
AC XY:
49
AN XY:
135732
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00391
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:
0.000163
GnomAD4 exome
AF:
0.0000971
AC:
142
AN:
1461716
Hom.:
1
Cov.:
31
AF XY:
0.0000729
AC XY:
53
AN XY:
727176
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00306
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000788
AC:
12
AN:
152344
Hom.:
0
Cov.:
32
AF XY:
0.0000805
AC XY:
6
AN XY:
74504
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000719
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:
0.000473
Alfa
AF:
0.0000629
Hom.:
0
Bravo
AF:
0.000234
ExAC
AF:
0.000436
AC:
53

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
Aug 10, 2020
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: DTNA c.1373G>C (p.Ser458Thr) results in a conservative amino acid change in the encoded protein sequence. Five of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00054 in 251168 control chromosomes, predominantly at a frequency of 0.0039 within the Latino subpopulation in the gnomAD database, including 1 homozygote. The observed variant frequency within Latino control individuals in the gnomAD database is approximately 1248-fold of the estimated maximal expected allele frequency for a pathogenic variant in DTNA causing Left Ventricular Noncompaction phenotype (3.1e-06), strongly suggesting that the variant is a benign polymorphism found primarily in populations of Latino origin. To our knowledge, no occurrence of c.1373G>C in individuals affected with Left Ventricular Noncompaction and no experimental evidence demonstrating its impact on protein function have been reported. Two ClinVar submitters (evaluation after 2014) cite the variant as benign/likely benign. Based on the evidence outlined above, the variant was classified as benign. -

not provided Benign:1
Aug 05, 2020
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

DTNA-related disorder Benign:1
Jun 14, 2019
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

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). -

Left ventricular noncompaction 1 Benign:1
Jan 13, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.076
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
19
DANN
Benign
0.96
DEOGEN2
Benign
0.32
.;.;.;.;.;.;.;.;.;T;T;T;.;.;.;.;.;.
Eigen
Benign
-0.37
Eigen_PC
Benign
-0.23
FATHMM_MKL
Benign
0.65
D
LIST_S2
Benign
0.65
T;T;T;T;T;T;.;T;T;T;.;T;T;T;T;T;T;T
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.0076
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.30
T
MutationAssessor
Benign
0.69
.;.;.;.;.;.;.;.;.;N;N;.;.;.;.;.;.;.
PrimateAI
Benign
0.43
T
PROVEAN
Benign
-0.45
N;.;.;.;.;.;.;N;.;N;N;.;N;.;.;N;.;.
REVEL
Benign
0.20
Sift
Benign
0.072
T;.;.;.;.;.;.;T;.;D;D;.;T;.;.;T;.;.
Sift4G
Benign
0.45
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
Polyphen
0.018
B;.;.;.;.;B;B;B;.;B;B;.;.;B;B;.;.;.
Vest4
0.12
MVP
0.69
MPC
0.29
ClinPred
0.065
T
GERP RS
2.8
Varity_R
0.052
gMVP
0.25

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: rs190619495; hg19: chr18-32431814; API