rs146845953

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001126108.2(SLC12A3):​c.2470T>A​(p.Ser824Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000838 in 1,614,216 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00055 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00087 ( 1 hom. )

Consequence

SLC12A3
NM_001126108.2 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:8

Conservation

PhyloP100: 2.18
Variant links:
Genes affected
SLC12A3 (HGNC:10912): (solute carrier family 12 member 3) This gene encodes a renal thiazide-sensitive sodium-chloride cotransporter that is important for electrolyte homeostasis. This cotransporter mediates sodium and chloride reabsorption in the distal convoluted tubule. Mutations in this gene cause Gitelman syndrome, a disease similar to Bartter's syndrome, that is characterized by hypokalemic alkalosis combined with hypomagnesemia, low urinary calcium, and increased renin activity associated with normal blood pressure. This cotransporter is the target for thiazide diuretics that are used for treating high blood pressure. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.07682854).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SLC12A3NM_001126108.2 linkc.2470T>A p.Ser824Thr missense_variant Exon 21 of 26 ENST00000563236.6 NP_001119580.2 P55017-1
SLC12A3NM_000339.3 linkc.2497T>A p.Ser833Thr missense_variant Exon 21 of 26 NP_000330.3 P55017-2
SLC12A3NM_001126107.2 linkc.2494T>A p.Ser832Thr missense_variant Exon 21 of 26 NP_001119579.2 P55017-3
SLC12A3NM_001410896.1 linkc.2467T>A p.Ser823Thr missense_variant Exon 21 of 26 NP_001397825.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SLC12A3ENST00000563236.6 linkc.2470T>A p.Ser824Thr missense_variant Exon 21 of 26 1 NM_001126108.2 ENSP00000456149.2 P55017-1
SLC12A3ENST00000438926.6 linkc.2497T>A p.Ser833Thr missense_variant Exon 21 of 26 1 ENSP00000402152.2 P55017-2
SLC12A3ENST00000566786.5 linkc.2494T>A p.Ser832Thr missense_variant Exon 21 of 26 1 ENSP00000457552.1 P55017-3
SLC12A3ENST00000262502.5 linkc.2467T>A p.Ser823Thr missense_variant Exon 21 of 26 5 ENSP00000262502.5 J3QSS1

Frequencies

GnomAD3 genomes
AF:
0.000552
AC:
84
AN:
152242
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000362
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00131
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:
0.000706
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000398
AC:
100
AN:
251062
Hom.:
0
AF XY:
0.000383
AC XY:
52
AN XY:
135762
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.000463
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:
0.000696
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000868
AC:
1269
AN:
1461856
Hom.:
1
Cov.:
31
AF XY:
0.000818
AC XY:
595
AN XY:
727230
show subpopulations
Gnomad4 AFR exome
AF:
0.000269
Gnomad4 AMR exome
AF:
0.000559
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.00108
Gnomad4 OTH exome
AF:
0.000613
GnomAD4 genome
AF:
0.000551
AC:
84
AN:
152360
Hom.:
0
Cov.:
33
AF XY:
0.000550
AC XY:
41
AN XY:
74504
show subpopulations
Gnomad4 AFR
AF:
0.000361
Gnomad4 AMR
AF:
0.00131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000706
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000686
Hom.:
0
Bravo
AF:
0.000597
TwinsUK
AF:
0.00108
AC:
4
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000930
AC:
8
ExAC
AF:
0.000296
AC:
36
EpiCase
AF:
0.000654
EpiControl
AF:
0.000711

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Familial hypokalemia-hypomagnesemia Uncertain:4
Mar 01, 2024
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jul 15, 2021
Genome-Nilou Lab
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. However, the evidence from the literature, in combination with allele frequency data from public databases where available, was not sufficient to rule this variant in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

Jan 14, 2020
Natera, Inc.
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

not provided Uncertain:3
Aug 19, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces serine, which is neutral and polar, with threonine, which is neutral and polar, at codon 833 of the SLC12A3 protein (p.Ser833Thr). This variant is present in population databases (rs146845953, gnomAD 0.07%). This missense change has been observed in individual(s) with clinical features of Gitelman syndrome (PMID: 22009145). ClinVar contains an entry for this variant (Variation ID: 448393). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt SLC12A3 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Sep 16, 2018
Gharavi Laboratory, Columbia University
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: research

- -

May 02, 2024
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Reported in the heterozygous state in an individual with Gitelman syndrome, but a second SLC12A3 variant was not identified in this individual (PMID: 22009145); In silico analysis indicates that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 25841442, 34604727, 22009145) -

not specified Uncertain:1
May 09, 2017
Athena Diagnostics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.068
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Uncertain
-0.070
CADD
Benign
16
DANN
Benign
0.81
DEOGEN2
Benign
0.33
.;.;T;T
Eigen
Benign
-0.68
Eigen_PC
Benign
-0.57
FATHMM_MKL
Benign
0.56
D
LIST_S2
Benign
0.68
T;T;T;T
M_CAP
Benign
0.018
T
MetaRNN
Benign
0.077
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.60
.;.;N;.
PrimateAI
Uncertain
0.51
T
PROVEAN
Benign
-1.1
N;N;N;N
REVEL
Benign
0.24
Sift
Benign
0.22
T;T;T;T
Sift4G
Benign
0.22
T;T;T;T
Polyphen
0.0010
B;B;B;.
Vest4
0.62
MVP
0.70
MPC
0.080
ClinPred
0.0095
T
GERP RS
2.9
Varity_R
0.13
gMVP
0.41

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: rs146845953; hg19: chr16-56926915; API