5-139379229-G-T

Variant summary

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

The NM_005847.5(SLC23A1):​c.1051C>A​(p.Pro351Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000111 in 1,614,094 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

SLC23A1
NM_005847.5 missense

Scores

5
6
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.99
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]

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 Protein UniProt
SLC23A1NM_005847.5 linkuse as main transcriptc.1051C>A p.Pro351Thr missense_variant 9/15 ENST00000348729.8 NP_005838.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SLC23A1ENST00000348729.8 linkuse as main transcriptc.1051C>A p.Pro351Thr missense_variant 9/151 NM_005847.5 ENSP00000302701 P1Q9UHI7-1
SLC23A1ENST00000353963.7 linkuse as main transcriptc.1063C>A p.Pro355Thr missense_variant 9/151 ENSP00000302851 Q9UHI7-2
SLC23A1ENST00000504513.1 linkuse as main transcriptc.292C>A p.Pro98Thr missense_variant 3/45 ENSP00000422688

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152210
Hom.:
0
Cov.:
32
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000103
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000398
AC:
10
AN:
251394
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135866
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:
0.0000792
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000118
AC:
172
AN:
1461884
Hom.:
0
Cov.:
32
AF XY:
0.000117
AC XY:
85
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.000150
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152210
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74362
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:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000156
Hom.:
0
Bravo
AF:
0.0000604
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

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 GeneticsDec 21, 2021The c.1063C>A (p.P355T) alteration is located in exon 9 (coding exon 9) of the SLC23A1 gene. This alteration results from a C to A substitution at nucleotide position 1063, causing the proline (P) at amino acid position 355 to be replaced by a threonine (T). 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
Pathogenic
0.97
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.28
CADD
Pathogenic
29
DANN
Uncertain
1.0
Eigen
Pathogenic
0.93
Eigen_PC
Pathogenic
0.89
FATHMM_MKL
Uncertain
0.96
D
M_CAP
Benign
0.037
D
MetaRNN
Uncertain
0.70
D;D
MetaSVM
Benign
-0.79
T
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.78
T
PROVEAN
Pathogenic
-7.7
D;D
REVEL
Uncertain
0.43
Sift
Pathogenic
0.0
D;D
Sift4G
Uncertain
0.0040
D;D
Vest4
0.65
MVP
0.87
MPC
1.9
ClinPred
0.67
D
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
gMVP
0.91

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: rs148214051; hg19: chr5-138714918; API