20-33443507-G-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_003098.3(SNTA1):c.114C>A(p.Asp38Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000189 in 1,376,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D38N) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

SNTA1
NM_003098.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: -0.287

Publications

0 publications found

Variant links:

Genes affected

SNTA1 (HGNC:11167): (syntrophin alpha 1) Syntrophins are cytoplasmic peripheral membrane scaffold proteins that are components of the dystrophin-associated protein complex. This gene is a member of the syntrophin gene family and encodes the most common syntrophin isoform found in cardiac tissues. The N-terminal PDZ domain of this syntrophin protein interacts with the C-terminus of the pore-forming alpha subunit (SCN5A) of the cardiac sodium channel Nav1.5. This protein also associates cardiac sodium channels with the nitric oxide synthase-PMCA4b (plasma membrane Ca-ATPase subtype 4b) complex in cardiomyocytes. This gene is a susceptibility locus for Long-QT syndrome (LQT) - an inherited disorder associated with sudden cardiac death from arrhythmia - and sudden infant death syndrome (SIDS). This protein also associates with dystrophin and dystrophin-related proteins at the neuromuscular junction and alters intracellular calcium ion levels in muscle tissue. [provided by RefSeq, Jan 2013]

SNTA1 Gene-Disease associations (from GenCC):

long QT syndrome 12
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
long QT syndrome
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

SNTA1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.053106666).

BS2

High AC in GnomAdExome4 at 25 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003098.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SNTA1	NM_003098.3	MANE Select	c.114C>A	p.Asp38Glu	missense	Exon 1 of 8	NP_003089.1	Q13424-1
SNTA1	NM_001424413.1		c.114C>A	p.Asp38Glu	missense	Exon 1 of 8	NP_001411342.1
SNTA1	NM_001424414.1		c.114C>A	p.Asp38Glu	missense	Exon 1 of 8	NP_001411343.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SNTA1	ENST00000217381.3	TSL:1 MANE Select	c.114C>A	p.Asp38Glu	missense	Exon 1 of 8	ENSP00000217381.2	Q13424-1
SNTA1	ENST00000953204.1		c.114C>A	p.Asp38Glu	missense	Exon 1 of 9	ENSP00000623263.1
SNTA1	ENST00000953205.1		c.114C>A	p.Asp38Glu	missense	Exon 1 of 9	ENSP00000623264.1

Frequencies

GnomAD3 genomes

AF:

0.00000662

AC:

AN:

151138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000148

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000139

AC:

AN:

72150

AF XY:

0.0000239

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:

0.00

Gnomad NFE exome

AF:

0.0000377

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000204

AC:

AN:

1225748

Hom.:

Cov.:

AF XY:

0.0000216

AC XY:

AN XY:

602198

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

25260

American (AMR)

AF:

0.00

AC:

AN:

23120

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

20312

East Asian (EAS)

AF:

0.00

AC:

AN:

24726

South Asian (SAS)

AF:

0.00

AC:

AN:

59380

European-Finnish (FIN)

AF:

0.00

AC:

AN:

28412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3426

European-Non Finnish (NFE)

AF:

0.0000242

AC:

AN:

992204

Other (OTH)

AF:

0.0000204

AC:

AN:

48908

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.447

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.00000662

AC:

AN:

151138

Hom.:

Cov.:

AF XY:

0.0000136

AC XY:

AN XY:

73792

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41332

American (AMR)

AF:

0.00

AC:

AN:

15180

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3462

East Asian (EAS)

AF:

0.00

AC:

AN:

5138

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10228

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000148

AC:

AN:

67666

Other (OTH)

AF:

0.00

AC:

AN:

2076

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

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Cardiovascular phenotype (1)

Long QT syndrome (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.25

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.54

CADD

Benign

(source)

DANN

Benign

0.94

DEOGEN2

Benign

0.24

Eigen

Benign

-0.65

Eigen_PC

Benign

-0.53

FATHMM_MKL

Benign

0.28

LIST_S2

Benign

0.60

M_CAP

Benign

0.050

MetaRNN

Benign

0.053

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.070

PhyloP100

-0.29

PrimateAI

Pathogenic

0.95

PROVEAN

Benign

-0.72

REVEL

Benign

0.071

Sift

Benign

0.46

Sift4G

Benign

0.91

Polyphen

0.022

Vest4

0.092

MutPred

0.11

Gain of MoRF binding (P = 0.134)

MVP

0.22

MPC

0.27

ClinPred

0.12

GERP RS

2.5

PromoterAI

0.14

Neutral

(source)

Varity_R

0.13

gMVP

0.34

Mutation Taster

=89/11

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over