Variant 5-139380557-A-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The ENST00000353963.7(SLC23A1):c.473T>G(p.Leu158Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00017 in 1,613,598 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

SLC23A1
ENST00000353963.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.933

Variant links:

Genes affected

SLC23A1 (HGNC:10974): (solute carrier family 23 member 1) The absorption of vitamin C into the body and its distribution to organs requires two sodium-dependent vitamin C transporters. This gene encodes one of the two transporters. The encoded protein is active in bulk vitamin C transport involving epithelial surfaces. Previously, this gene had an official symbol of SLC23A2. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2008]

SLC23A1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLC23A1	NM_005847.5 linkuse as main transcript	c.465+8T>G		splice_region_variant, intron_variant		ENST00000348729.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC23A1	ENST00000353963.7 linkuse as main transcript	c.473T>G	p.Leu158Trp	missense_variant	5/15	1			Q9UHI7-2
SLC23A1	ENST00000348729.8 linkuse as main transcript	c.465+8T>G		splice_region_variant, intron_variant		1	NM_005847.5	P1	Q9UHI7-1
SLC23A1	ENST00000504513.1 linkuse as main transcript	c.43+8T>G		splice_region_variant, intron_variant		5
SLC23A1	ENST00000503919.1 linkuse as main transcript			downstream_gene_variant		4

Frequencies

GnomAD3 genomes

AF:

0.000125

AC:

AN:

152144

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000524

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:

0.000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000875

AC:

AN:

251468

Hom.:

AF XY:

0.000103

AC XY:

AN XY:

135906

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000578

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:

0.000158

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000174

AC:

255

AN:

1461454

Hom.:

Cov.:

AF XY:

0.000158

AC XY:

115

AN XY:

727104

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000112

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:

0.000219

Gnomad4 OTH exome

AF:

0.0000994

GnomAD4 genome

AF:

0.000125

AC:

AN:

152144

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74326

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.000524

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000178

Hom.:

Bravo

AF:

0.000110

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000824

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000356

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 22, 2023

The c.473T>G (p.L158W) alteration is located in exon 5 (coding exon 5) of the SLC23A1 gene. This alteration results from a T to G substitution at nucleotide position 473, causing the leucine (L) at amino acid position 158 to be replaced by a tryptophan (W). 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

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.58

Cadd

Benign

7.6

Dann

Benign

0.87

Eigen

Benign

-0.83

Eigen_PC

Benign

-0.78

FATHMM_MKL

Benign

0.13

M_CAP

Benign

0.0049

MetaRNN

Benign

0.34

MetaSVM

Benign

-1.0

MutationTaster

Benign

0.60

D;N

PrimateAI

Benign

0.46

PROVEAN

Benign

-0.33

REVEL

Benign

0.035

Sift

Uncertain

0.0050

Sift4G

Benign

0.087

Vest4

0.64

MVP

0.12

MPC

1.6

ClinPred

0.069

GERP RS

1.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

gMVP

0.77

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.23

Details are displayed if max score is > 0.2

DS_DL_spliceai

0.23

Position offset: -4

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