chr3-184352810-C-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BS2_Supporting

The ENST00000265593.9(CLCN2):​c.2144G>A​(p.Gly715Glu) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000548 in 1,460,888 control chromosomes in the GnomAD database, with no homozygous occurrence. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (no stars).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

CLCN2
ENST00000265593.9 missense, splice_region

Scores

8
11
Splicing: ADA: 0.9968
2

Clinical Significance

Uncertain significance no assertion criteria provided U:1O:1

Conservation

PhyloP100: 1.98
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

BS2
High AC in GnomAdExome4 at 8 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CLCN2NM_004366.6 linkuse as main transcriptc.2144G>A p.Gly715Glu missense_variant, splice_region_variant 19/24 ENST00000265593.9 NP_004357.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CLCN2ENST00000265593.9 linkuse as main transcriptc.2144G>A p.Gly715Glu missense_variant, splice_region_variant 19/241 NM_004366.6 ENSP00000265593 P1P51788-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000801
AC:
2
AN:
249760
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135444
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:
0.0000178
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000548
AC:
8
AN:
1460888
Hom.:
0
Cov.:
32
AF XY:
0.00000550
AC XY:
4
AN XY:
726746
show subpopulations
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:
0.00000719
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1Other:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

EPILEPSY, JUVENILE ABSENCE, SUSCEPTIBILITY TO, 2 Uncertain:1
Uncertain significance, no assertion criteria providedliterature onlyOMIMSep 01, 2009- -
Leukoencephalopathy with mild cerebellar ataxia and white matter edema Other:1
not provided, no classification providedliterature onlyGeneReviews-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.0039
T
BayesDel_noAF
Benign
-0.23
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.43
T;.;.;.
Eigen
Benign
-0.024
Eigen_PC
Benign
0.027
FATHMM_MKL
Benign
0.61
D
LIST_S2
Benign
0.84
T;T;T;T
M_CAP
Uncertain
0.13
D
MetaRNN
Uncertain
0.56
D;D;D;D
MetaSVM
Uncertain
0.21
D
MutationAssessor
Benign
1.4
L;.;.;L
MutationTaster
Benign
1.0
D;D;D;D;D;D
PrimateAI
Benign
0.43
T
PROVEAN
Uncertain
-3.2
D;D;D;D
REVEL
Uncertain
0.30
Sift
Uncertain
0.013
D;D;D;D
Sift4G
Benign
0.10
T;T;T;T
Polyphen
0.87
P;P;.;.
Vest4
0.65
MutPred
0.19
Gain of glycosylation at S716 (P = 0.0354);.;.;Gain of glycosylation at S716 (P = 0.0354);
MVP
0.86
MPC
0.44
ClinPred
0.40
T
GERP RS
4.5
Varity_R
0.21
gMVP
0.42

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.74
SpliceAI score (max)
0.16
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: rs137852681; hg19: chr3-184070598; API