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GeneBe

5-139381950-C-T

Variant summary

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

The NM_005847.5(SLC23A1):c.250G>A(p.Gly84Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000189 in 1,588,814 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

SLC23A1
NM_005847.5 missense

Scores

1
7
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.00
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]

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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
SLC23A1NM_005847.5 linkuse as main transcriptc.250G>A p.Gly84Ser missense_variant 3/15 ENST00000348729.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC23A1ENST00000348729.8 linkuse as main transcriptc.250G>A p.Gly84Ser missense_variant 3/151 NM_005847.5 P1Q9UHI7-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152138
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000950
AC:
2
AN:
210626
Hom.:
0
AF XY:
0.00000888
AC XY:
1
AN XY:
112662
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000214
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000188
AC:
27
AN:
1436676
Hom.:
0
Cov.:
32
AF XY:
0.0000225
AC XY:
16
AN XY:
712154
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.0000236
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152138
Hom.:
0
Cov.:
31
AF XY:
0.0000269
AC XY:
2
AN XY:
74310
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151
ExAC
AF:
0.00000825
AC:
1

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 submitterclinical testingAmbry GeneticsNov 08, 2022The c.250G>A (p.G84S) alteration is located in exon 3 (coding exon 3) of the SLC23A1 gene. This alteration results from a G to A substitution at nucleotide position 250, causing the glycine (G) at amino acid position 84 to be replaced by a serine (S). 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
0.28
BayesDel_addAF
Uncertain
0.13
D
BayesDel_noAF
Uncertain
-0.020
Cadd
Pathogenic
26
Dann
Uncertain
1.0
Eigen
Benign
0.15
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Uncertain
0.94
D
M_CAP
Benign
0.036
D
MetaRNN
Uncertain
0.56
D;D;D
MetaSVM
Benign
-0.87
T
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.88
D
PROVEAN
Benign
0.010
N;N;N
REVEL
Uncertain
0.43
Sift
Benign
1.0
T;T;T
Sift4G
Benign
1.0
T;T;.
Vest4
0.55
MutPred
0.77
Gain of glycosylation at G84 (P = 0.0083);Gain of glycosylation at G84 (P = 0.0083);.;
MVP
0.52
MPC
0.095
ClinPred
0.35
T
GERP RS
4.8
gMVP
0.83

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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.

Other links and lift over

dbSNP: rs775550290; hg19: chr5-138717639; API