chr3-184358062-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_ModeratePP5_Moderate

The NM_004366.6(CLCN2):​c.515G>A​(p.Arg172Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,218 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

CLCN2
NM_004366.6 missense

Scores

11
7
1

Clinical Significance

Pathogenic criteria provided, single submitter P:3

Conservation

PhyloP100: 7.89
Variant links:
Genes affected
CLCN2 (HGNC:2020): (chloride voltage-gated channel 2) This gene encodes a voltage-gated chloride channel. The encoded protein is a transmembrane protein that maintains chloride ion homeostasis in various cells. Defects in this gene may be a cause of certain epilepsies. Four transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.872
PP5
Variant 3-184358062-C-T is Pathogenic according to our data. Variant chr3-184358062-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 441164.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CLCN2NM_004366.6 linkuse as main transcriptc.515G>A p.Arg172Gln missense_variant 5/24 ENST00000265593.9 NP_004357.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CLCN2ENST00000265593.9 linkuse as main transcriptc.515G>A p.Arg172Gln missense_variant 5/241 NM_004366.6 ENSP00000265593 P1P51788-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152218
Hom.:
0
Cov.:
33
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1461778
Hom.:
0
Cov.:
35
AF XY:
0.00
AC XY:
0
AN XY:
727176
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152218
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74366
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:
0.0000147
Gnomad4 OTH
AF:
0.00

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Familial hyperaldosteronism type II Pathogenic:2
Pathogenic, no assertion criteria providedliterature onlyOMIMMay 06, 2021- -
Pathogenic, no assertion criteria providedin vitro;researchUte Scholl Laboratory, Heinrich Heine University DuesseldorfSep 25, 2017Four independent occurrences of CLCN2 p.Arg172Gln, significant burden of rare variants in CLCN2 in early-onset primary aldosteronism (two de novo), localization of CLCN2 in adrenal zona glomerulosa, electrophysiologic impact of mutant channels and effect on aldosterone synthase expression -
Familial hyperaldosteronism type II;C2750893:Epilepsy, idiopathic generalized, susceptibility to, 11;C4554120:Leukoencephalopathy with mild cerebellar ataxia and white matter edema Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsSep 20, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.84
BayesDel_addAF
Pathogenic
0.38
D
BayesDel_noAF
Pathogenic
0.30
CADD
Pathogenic
35
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.69
D;.;.;.;T
Eigen
Uncertain
0.64
Eigen_PC
Uncertain
0.59
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.97
D;D;D;D;D
M_CAP
Pathogenic
0.39
D
MetaRNN
Pathogenic
0.87
D;D;D;D;D
MetaSVM
Pathogenic
0.94
D
MutationAssessor
Uncertain
2.7
M;M;.;M;.
MutationTaster
Benign
1.0
D;D;D;D;D;D
PrimateAI
Pathogenic
0.81
D
PROVEAN
Uncertain
-3.5
D;D;D;D;.
REVEL
Pathogenic
0.82
Sift
Pathogenic
0.0
D;D;D;D;.
Sift4G
Uncertain
0.0060
D;D;D;D;.
Polyphen
1.0
D;D;.;.;.
Vest4
0.88
MutPred
0.62
Gain of catalytic residue at R172 (P = 0.1373);Gain of catalytic residue at R172 (P = 0.1373);.;Gain of catalytic residue at R172 (P = 0.1373);.;
MVP
0.98
MPC
1.1
ClinPred
0.99
D
GERP RS
4.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.90
gMVP
0.75

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.41
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.41
Position offset: -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: rs1293789661; hg19: chr3-184075850; COSMIC: COSV55602996; COSMIC: COSV55602996; API