rs201330912

Variant names:

Variant summary

Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong

The NM_004366.6(CLCN2):c.1709G>A(p.Trp570*) variant causes a stop gained change. The variant allele was found at a frequency of 0.0000192 in 1,612,056 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 Likely pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

CLCN2
NM_004366.6 stop_gained

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:9O:1

Conservation

PhyloP100: 4.95

Publications

11 publications found

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]

CLCN2 Gene-Disease associations (from GenCC):

leukoencephalopathy with mild cerebellar ataxia and white matter edema
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: G2P, Genomics England PanelApp, Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)
epilepsy, idiopathic generalized, susceptibility to, 11
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
familial hyperaldosteronism type II
Inheritance: AD Classification: MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet
epilepsy
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

CLCN2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 16 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

PP5

Variant 3-184354113-C-T is Pathogenic according to our data. Variant chr3-184354113-C-T is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 100629.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004366.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CLCN2	NM_004366.6	MANE Select	c.1709G>A	p.Trp570*	stop_gained	Exon 15 of 24	NP_004357.3
CLCN2	NM_001171087.3		c.1658G>A	p.Trp553*	stop_gained	Exon 15 of 24	NP_001164558.1	P51788-3
CLCN2	NM_001171089.3		c.1709G>A	p.Trp570*	stop_gained	Exon 15 of 23	NP_001164560.1	P51788-5

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CLCN2	ENST00000265593.9	TSL:1 MANE Select	c.1709G>A	p.Trp570*	stop_gained	Exon 15 of 24	ENSP00000265593.4	P51788-1
CLCN2	ENST00000344937.11	TSL:1	c.1658G>A	p.Trp553*	stop_gained	Exon 15 of 24	ENSP00000345056.7	P51788-3
CLCN2	ENST00000430397.5	TSL:1	n.*175G>A		non_coding_transcript_exon	Exon 5 of 13	ENSP00000396231.1	H7C0Q8

Frequencies

GnomAD3 genomes

AF:

0.0000199

AC:

AN:

150944

Hom.:

Cov.:

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:

0.0000295

Gnomad OTH

AF:

0.000484

GnomAD2 exomes

AF:

0.0000200

AC:

AN:

250326

AF XY:

0.0000295

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000868

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000886

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000192

AC:

AN:

1461112

Hom.:

Cov.:

AF XY:

0.0000261

AC XY:

AN XY:

726874

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33474

American (AMR)

AF:

0.000112

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52744

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

0.0000171

AC:

AN:

1111956

Other (OTH)

AF:

0.0000663

AC:

AN:

60372

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.486

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000199

AC:

AN:

150944

Hom.:

Cov.:

AF XY:

0.0000136

AC XY:

AN XY:

73602

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

40942

American (AMR)

AF:

0.00

AC:

AN:

15112

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5108

South Asian (SAS)

AF:

0.00

AC:

AN:

4720

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10500

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000295

AC:

AN:

67802

Other (OTH)

AF:

0.000484

AC:

AN:

2068

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000331

Hom.:

Bravo

AF:

0.0000151

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.00

ClinVar

ClinVar submissions

Significance:Pathogenic/Likely pathogenic

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

Epilepsy, idiopathic generalized, susceptibility to, 11 (2)

Leukoencephalopathy with mild cerebellar ataxia and white matter edema (3)

CLCN2-related disorder (1)

Familial hyperaldosteronism type II;C2750893:Epilepsy, idiopathic generalized, susceptibility to, 11;C4554120:Leukoencephalopathy with mild cerebellar ataxia and white matter edema (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.49

BayesDel_noAF

Pathogenic

0.51

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

Eigen

Pathogenic

1.0

Eigen_PC

Pathogenic

0.87

FATHMM_MKL

Pathogenic

0.97

PhyloP100

5.0

Vest4

0.97

GERP RS

5.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=0/200

disease causing (ClinVar)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over