Genetic Variant SLC10A3:p.Val318Met (chrX-154487989-C-T) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_019848.5(SLC10A3):c.952G>A(p.Val318Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000496 in 1,209,702 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 30 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000045 ( 0 hom., 2 hem., cov: 24)

Exomes 𝑓: 0.000050 ( 0 hom. 28 hem. )

Consequence

SLC10A3
NM_019848.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.59

Variant links:

Genes affected

SLC10A3 (HGNC:22979): (solute carrier family 10 member 3) This gene maps to a GC-rich region of the X chromosome and was identified by its proximity to a CpG island. It is thought to be a housekeeping gene. Alternative splicing results in multiple transcript variants encoding distinct isoforms.[provided by RefSeq, Dec 2008]

SLC10A3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.17109829).

BS2

High Hemizygotes in GnomAd4 at 2 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC10A3	NM_019848.5 link	c.952G>A	p.Val318Met	missense_variant	Exon 2 of 2	ENST00000651600.1	NP_062822.1	P09131-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC10A3	ENST00000651600.1 link	c.952G>A	p.Val318Met	missense_variant	Exon 2 of 2		NM_019848.5	ENSP00000499188.1		P09131-1

Frequencies

GnomAD3 genomes

AF:

0.0000447

AC:

AN:

111915

Hom.:

Cov.:

AF XY:

0.0000587

AC XY:

AN XY:

34089

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:

0.000754

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000565

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000382

AC:

AN:

183110

Hom.:

AF XY:

0.0000590

AC XY:

AN XY:

67848

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000365

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000722

Gnomad SAS exome

AF:

0.000105

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000367

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000501

AC:

AN:

1097732

Hom.:

Cov.:

AF XY:

0.0000771

AC XY:

AN XY:

363360

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000284

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000331

Gnomad4 SAS exome

AF:

0.000148

Gnomad4 FIN exome

AF:

0.0000250

Gnomad4 NFE exome

AF:

0.0000523

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000447

AC:

AN:

111970

Hom.:

Cov.:

AF XY:

0.0000586

AC XY:

AN XY:

34154

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000756

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000565

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000214

Hom.:

Bravo

AF:

0.0000718

ExAC

AF:

0.0000577

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000237

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 10, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.952G>A (p.V318M) alteration is located in exon 2 (coding exon 1) of the SLC10A3 gene. This alteration results from a G to A substitution at nucleotide position 952, causing the valine (V) at amino acid position 318 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.27

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.64

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.091

.;T;.;T

FATHMM_MKL

Benign

0.74

LIST_S2

Uncertain

0.91

D;D;D;.

M_CAP

Pathogenic

0.29

MetaRNN

Benign

0.17

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.6

.;M;.;M

PrimateAI

Uncertain

0.53

PROVEAN

Benign

-2.1

N;N;N;N

REVEL

Benign

0.16

Sift

Uncertain

0.028

D;D;D;D

Sift4G

Benign

0.068

T;T;T;T

Polyphen

0.94

.;P;.;P

Vest4

0.23

MutPred

0.51

.;Gain of helix (P = 0.0425);.;Gain of helix (P = 0.0425);

MVP

0.39

MPC

0.94

ClinPred

0.18

GERP RS

3.3

Varity_R

0.22

gMVP

0.83

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over