chr16-56865272-G-C

Position:

chr16-56865272-G-C

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM1BP4_StrongBP6BS2

The NM_001126108.2(SLC12A3):c.37G>C(p.Ala13Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000936 in 1,613,802 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A13T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00067 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00096 ( 2 hom. )

Consequence

SLC12A3
NM_001126108.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:5B:2O:1

Conservation

PhyloP100: 0.512

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]

SLC12A3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PM1

In a topological_domain Cytoplasmic (size 134) in uniprot entity S12A3_HUMAN there are 21 pathogenic changes around while only 6 benign (78%) in NM_001126108.2

BP4

Computational evidence support a benign effect (MetaRNN=0.061490893).

BP6

Variant 16-56865272-G-C is Benign according to our data. Variant chr16-56865272-G-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 562448.We mark this variant Likely_benign, oryginal submissions are: {not_provided=1, Likely_benign=2, Uncertain_significance=4}.

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
SLC12A3	NM_001126108.2 linkuse as main transcript	c.37G>C	p.Ala13Pro	missense_variant	1/26	ENST00000563236.6
SLC12A3	NM_000339.3 linkuse as main transcript	c.37G>C	p.Ala13Pro	missense_variant	1/26
SLC12A3	NM_001126107.2 linkuse as main transcript	c.37G>C	p.Ala13Pro	missense_variant	1/26
SLC12A3	NM_001410896.1 linkuse as main transcript	c.37G>C	p.Ala13Pro	missense_variant	1/26

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC12A3	ENST00000563236.6 linkuse as main transcript	c.37G>C	p.Ala13Pro	missense_variant	1/26	1	NM_001126108.2	A1	P55017-1
SLC12A3	ENST00000438926.6 linkuse as main transcript	c.37G>C	p.Ala13Pro	missense_variant	1/26	1		A1	P55017-2
SLC12A3	ENST00000566786.5 linkuse as main transcript	c.37G>C	p.Ala13Pro	missense_variant	1/26	1		P4	P55017-3
SLC12A3	ENST00000262502.5 linkuse as main transcript	c.37G>C	p.Ala13Pro	missense_variant	1/26	5		A1

Frequencies

GnomAD3 genomes

AF:

0.000670

AC:

102

AN:

152214

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000589

Gnomad ASJ

AF:

0.00144

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.00110

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000651

AC:

163

AN:

250400

Hom.:

AF XY:

0.000701

AC XY:

AN XY:

135562

show subpopulations

Gnomad AFR exome

AF:

0.000247

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.000894

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000425

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00113

Gnomad OTH exome

AF:

0.000816

GnomAD4 exome

AF:

0.000963

AC:

1408

AN:

1461470

Hom.:

Cov.:

AF XY:

0.000942

AC XY:

685

AN XY:

727052

show subpopulations

Gnomad4 AFR exome

AF:

0.000209

Gnomad4 AMR exome

AF:

0.000157

Gnomad4 ASJ exome

AF:

0.000995

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000267

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00115

Gnomad4 OTH exome

AF:

0.000944

GnomAD4 genome

AF:

0.000670

AC:

102

AN:

152332

Hom.:

Cov.:

AF XY:

0.000631

AC XY:

AN XY:

74492

show subpopulations

Gnomad4 AFR

AF:

0.000240

Gnomad4 AMR

AF:

0.000588

Gnomad4 ASJ

AF:

0.00144

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.00110

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.00110

Hom.:

Bravo

AF:

0.000661

TwinsUK

AF:

0.00108

AC:

ALSPAC

AF:

0.00156

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00140

AC:

ExAC

AF:

0.000626

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00131

EpiControl

AF:

0.000889

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:1Uncertain:5Benign:2Other:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Familial hypokalemia-hypomagnesemia

Uncertain:4Other:1

Uncertain significance, criteria provided, single submitter	clinical testing	Fulgent Genetics, Fulgent Genetics	Apr 17, 2022	- -
Uncertain significance, no assertion criteria provided	clinical testing	Natera, Inc.	Jan 17, 2020	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Apr 27, 2017	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. -
Uncertain significance, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Jul 15, 2021	- -
not provided, no classification provided	phenotyping only	GenomeConnect, ClinGen	-	Variant interpreted as Uncertain significance and reported on 03-22-2020 by Lab or GTR ID 239772. GenomeConnect assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. GenomeConnect staff make no attempt to reinterpret the clinical significance of the variant. -

not provided

Pathogenic:1Uncertain:1Benign:1

Likely benign, criteria provided, single submitter	clinical testing	Invitae	Jan 31, 2024	- -
Likely pathogenic, no assertion criteria provided	research	Gharavi Laboratory, Columbia University	Sep 16, 2018	- -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Jul 07, 2021	Reported in association with Gitelman syndrome in the published literature; however, additional clinical information and segregation information were not provided and it is unknown if a second variant was identified (Tseng MH et al., 2012); Reported along with a second variant in the SLC12A3 gene in a patient with Gitelman syndrome in the published literature; however, segregation information was not provided (Hureaux M et al., 2019); In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 31589614, 22679066, 21415153, 31672324, 28469853, 27535533) -

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 30, 2021

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.062

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.090

CADD

Benign

0.67

DANN

Benign

0.64

DEOGEN2

Benign

0.11

.;.;T;T

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.0043

LIST_S2

Benign

0.52

T;T;T;T

M_CAP

Benign

0.037

MetaRNN

Benign

0.061

T;T;T;T

MetaSVM

Benign

-0.85

MutationAssessor

Benign

0.0

N;N;N;.

MutationTaster

Benign

1.0

N;N;N;N

PrimateAI

Benign

0.32

PROVEAN

Benign

0.37

N;N;N;N

REVEL

Uncertain

0.51

Sift

Benign

0.40

T;T;T;T

Sift4G

Benign

0.82

T;T;T;T

Polyphen

0.0

B;B;B;.

Vest4

0.55

MVP

0.58

MPC

0.11

ClinPred

0.0032

GERP RS

1.7

Varity_R

0.092

gMVP

0.48

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.

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