rs148123045

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_001386795.1(DTNA):​c.1000G>A​(p.Val334Met) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0011 in 1,613,666 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0012 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0011 ( 2 hom. )

Consequence

DTNA
NM_001386795.1 missense, splice_region

Scores

4
4
9
Splicing: ADA: 0.9738
1
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:9

Conservation

PhyloP100: 10.0

Publications

4 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):
  • left ventricular noncompaction 1
    Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
  • Meniere disease
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
  • congenital heart disease
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
  • dilated cardiomyopathy
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.00822553).
BP6
Variant 18-34820914-G-A is Benign according to our data. Variant chr18-34820914-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 46410.
BS2
High AC in GnomAd4 at 175 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

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DTNA
NM_001386795.1
MANE Select
c.1000G>Ap.Val334Met
missense splice_region
Exon 9 of 23NP_001373724.1A0A7P0TBH9
DTNA
NM_001386788.1
c.1000G>Ap.Val334Met
missense splice_region
Exon 9 of 23NP_001373717.1Q9Y4J8-17
DTNA
NM_001390.5
c.1000G>Ap.Val334Ile
missense splice_region
Exon 8 of 22NP_001381.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DTNA
ENST00000444659.6
TSL:5 MANE Select
c.1000G>Ap.Val334Met
missense splice_region
Exon 9 of 23ENSP00000405819.2Q9Y4J8-17
DTNA
ENST00000598334.5
TSL:1
c.1000G>Ap.Val334Met
missense splice_region
Exon 10 of 20ENSP00000470152.1Q9Y4J8-15
DTNA
ENST00000399121.9
TSL:1
c.1000G>Ap.Val334Met
missense splice_region
Exon 10 of 22ENSP00000382072.5Q9Y4J8-14

Frequencies

GnomAD3 genomes
AF:
0.00114
AC:
173
AN:
151730
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00117
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00522
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000971
Gnomad OTH
AF:
0.000961
GnomAD2 exomes
AF:
0.000927
AC:
233
AN:
251432
AF XY:
0.000920
show subpopulations
Gnomad AFR exome
AF:
0.00166
Gnomad AMR exome
AF:
0.000260
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00480
Gnomad NFE exome
AF:
0.000739
Gnomad OTH exome
AF:
0.00114
GnomAD4 exome
AF:
0.00109
AC:
1598
AN:
1461820
Hom.:
2
Cov.:
31
AF XY:
0.00105
AC XY:
762
AN XY:
727212
show subpopulations
African (AFR)
AF:
0.00212
AC:
71
AN:
33478
American (AMR)
AF:
0.000291
AC:
13
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39698
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86258
European-Finnish (FIN)
AF:
0.00470
AC:
251
AN:
53416
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5768
European-Non Finnish (NFE)
AF:
0.00109
AC:
1217
AN:
1111950
Other (OTH)
AF:
0.000695
AC:
42
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.478
Heterozygous variant carriers
0
91
181
272
362
453
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
52
104
156
208
260
<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:
0.00115
AC:
175
AN:
151846
Hom.:
0
Cov.:
32
AF XY:
0.00132
AC XY:
98
AN XY:
74210
show subpopulations
African (AFR)
AF:
0.00121
AC:
50
AN:
41288
American (AMR)
AF:
0.000131
AC:
2
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5170
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4802
European-Finnish (FIN)
AF:
0.00522
AC:
55
AN:
10542
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000971
AC:
66
AN:
67984
Other (OTH)
AF:
0.000951
AC:
2
AN:
2104
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.497
Heterozygous variant carriers
0
8
16
23
31
39
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<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:
0.00105
Hom.:
0
Bravo
AF:
0.000842
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00208
AC:
8
ESP6500AA
AF:
0.00159
AC:
7
ESP6500EA
AF:
0.000930
AC:
8
ExAC
AF:
0.000964
AC:
117
EpiCase
AF:
0.000818
EpiControl
AF:
0.000771

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
4
not provided (5)
-
1
2
not specified (3)
-
-
2
Left ventricular noncompaction 1 (2)
-
-
1
DTNA-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.41
BayesDel_addAF
Benign
-0.37
T
BayesDel_noAF
Uncertain
-0.040
CADD
Pathogenic
34
DANN
Uncertain
1.0
DEOGEN2
Benign
0.25
T
Eigen
Pathogenic
0.93
Eigen_PC
Pathogenic
0.91
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.90
D
M_CAP
Benign
0.053
D
MetaRNN
Benign
0.0082
T
MetaSVM
Benign
-0.95
T
PhyloP100
10
PrimateAI
Pathogenic
0.80
T
PROVEAN
Benign
-0.67
N
REVEL
Benign
0.27
Sift
Benign
0.080
T
Sift4G
Benign
0.063
T
Polyphen
0.97
D
Vest4
0.49
MVP
0.59
ClinPred
0.060
T
GERP RS
5.7
PromoterAI
0.036
Neutral
Varity_R
0.084
Mutation Taster
=39/61
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.97
dbscSNV1_RF
Benign
0.64
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

Other links and lift over

dbSNP: rs148123045; hg19: chr18-32400878; API