20-4902554-G-A

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_005116.6(SLC23A2):​c.212C>T​(p.Ser71Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000053 in 1,584,002 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000057 ( 0 hom. )

Consequence

SLC23A2
NM_005116.6 missense

Scores

2
6
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.86
Variant links:
Genes affected
SLC23A2 (HGNC:10973): (solute carrier family 23 member 2) 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 required transporters and the encoded protein accounts for tissue-specific uptake of vitamin C. Previously, this gene had an official symbol of SLC23A1. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.34339237).
BS2
High AC in GnomAdExome4 at 82 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC23A2NM_005116.6 linkuse as main transcriptc.212C>T p.Ser71Phe missense_variant 5/17 ENST00000338244.6
SLC23A2NM_203327.2 linkuse as main transcriptc.212C>T p.Ser71Phe missense_variant 5/17

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC23A2ENST00000338244.6 linkuse as main transcriptc.212C>T p.Ser71Phe missense_variant 5/171 NM_005116.6 P1Q9UGH3-1
SLC23A2ENST00000379333.5 linkuse as main transcriptc.212C>T p.Ser71Phe missense_variant 5/171 P1Q9UGH3-1
SLC23A2ENST00000468355.5 linkuse as main transcriptn.578C>T non_coding_transcript_exon_variant 5/121

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152144
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000205
AC:
5
AN:
243694
Hom.:
0
AF XY:
0.0000303
AC XY:
4
AN XY:
131890
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:
0.0000449
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000573
AC:
82
AN:
1431858
Hom.:
0
Cov.:
24
AF XY:
0.0000588
AC XY:
42
AN XY:
713854
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:
0.0000726
Gnomad4 OTH exome
AF:
0.0000506
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152144
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74324
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000565
Hom.:
0
Bravo
AF:
0.0000491
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.000110
EpiControl
AF:
0.0000598

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 GeneticsJun 02, 2024The c.212C>T (p.S71F) alteration is located in exon 5 (coding exon 3) of the SLC23A2 gene. This alteration results from a C to T substitution at nucleotide position 212, causing the serine (S) at amino acid position 71 to be replaced by a phenylalanine (F). 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
0.22
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.30
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.31
T;T
Eigen
Uncertain
0.41
Eigen_PC
Uncertain
0.50
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.90
.;D
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.34
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.7
L;L
MutationTaster
Benign
1.0
D;D;N
PrimateAI
Pathogenic
0.79
T
PROVEAN
Benign
-2.0
N;N
REVEL
Benign
0.15
Sift
Uncertain
0.014
D;D
Sift4G
Uncertain
0.051
T;T
Polyphen
0.91
P;P
Vest4
0.54
MVP
0.12
MPC
1.5
ClinPred
0.54
D
GERP RS
5.2
Varity_R
0.20
gMVP
0.77

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.

Other links and lift over

dbSNP: rs756327233; hg19: chr20-4883200; API