Genetic Variant SLC8A1:p.Val924Leu (chr2-40115405-C-A) – 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_021097.5(SLC8A1):c.2770G>T(p.Val924Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,461,892 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. V924M) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

SLC8A1
NM_021097.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.04

Publications

0 publications found

Variant links:

Genes affected

SLC8A1 (HGNC:11068): (solute carrier family 8 member A1) In cardiac myocytes, Ca(2+) concentrations alternate between high levels during contraction and low levels during relaxation. The increase in Ca(2+) concentration during contraction is primarily due to release of Ca(2+) from intracellular stores. However, some Ca(2+) also enters the cell through the sarcolemma (plasma membrane). During relaxation, Ca(2+) is sequestered within the intracellular stores. To prevent overloading of intracellular stores, the Ca(2+) that entered across the sarcolemma must be extruded from the cell. The Na(+)-Ca(2+) exchanger is the primary mechanism by which the Ca(2+) is extruded from the cell during relaxation. In the heart, the exchanger may play a key role in digitalis action. The exchanger is the dominant mechanism in returning the cardiac myocyte to its resting state following excitation.[supplied by OMIM, Apr 2004]

SLC8A1 links:

SLC8A1-AS1 (HGNC:44102): (SLC8A1 antisense RNA 1)

SLC8A1-AS1 links:

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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=0.3935262).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_021097.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SLC8A1	NM_021097.5	MANE Select	c.2770G>T	p.Val924Leu	missense	Exon 11 of 11	NP_066920.1	P32418-1
SLC8A1	NM_001372263.2		c.2770G>T	p.Val924Leu	missense	Exon 11 of 11	NP_001359192.1	P32418-1
SLC8A1	NM_001394103.1		c.2770G>T	p.Val924Leu	missense	Exon 12 of 12	NP_001381032.1	P32418-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SLC8A1	ENST00000332839.9	TSL:1 MANE Select	c.2770G>T	p.Val924Leu	missense	Exon 11 of 11	ENSP00000332931.4	P32418-1
SLC8A1	ENST00000403092.5	TSL:1	c.2770G>T	p.Val924Leu	missense	Exon 11 of 11	ENSP00000384763.1	P32418-1
SLC8A1	ENST00000405901.7	TSL:1	c.2755G>T	p.Val919Leu	missense	Exon 9 of 9	ENSP00000385678.3	P32418-5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461892

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727246

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112010

Other (OTH)

AF:

0.0000497

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.513

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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.41

BayesDel_addAF

Benign

-0.0092

BayesDel_noAF

Benign

-0.25

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.35

Eigen

Uncertain

0.23

Eigen_PC

Uncertain

0.39

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.96

M_CAP

Benign

0.015

MetaRNN

Benign

0.39

MetaSVM

Benign

-0.75

MutationAssessor

Benign

0.84

PhyloP100

4.0

PrimateAI

Pathogenic

0.81

PROVEAN

Benign

-1.8

REVEL

Benign

0.17

Sift

Benign

0.13

Sift4G

Benign

0.31

Polyphen

0.65

Vest4

0.47

MutPred

0.56

Loss of sheet (P = 0.0025)

MVP

0.53

MPC

1.1

ClinPred

0.67

GERP RS

5.9

Varity_R

0.21

gMVP

0.92

Mutation Taster

=84/16

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

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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