rs141242566

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM2PP3_ModerateBS2_Supporting

The NM_004366.6(CLCN2):​c.1795G>T​(p.Asp599Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.00000343 in 1,457,348 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D599N) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

CLCN2
NM_004366.6 missense

Scores

11
7
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.02
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 Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.896
BS2
High AC in GnomAdExome4 at 5 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 UniProt
CLCN2NM_004366.6 linkuse as main transcriptc.1795G>T p.Asp599Tyr missense_variant 16/24 ENST00000265593.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CLCN2ENST00000265593.9 linkuse as main transcriptc.1795G>T p.Asp599Tyr missense_variant 16/241 NM_004366.6 P1P51788-1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.0000125
AC:
3
AN:
240662
Hom.:
0
AF XY:
0.00000766
AC XY:
1
AN XY:
130474
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:
0.0000277
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000343
AC:
5
AN:
1457348
Hom.:
0
Cov.:
33
AF XY:
0.00000414
AC XY:
3
AN XY:
724520
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:
0.00000450
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31
Alfa
AF:
0.00000807
Hom.:
1
Bravo
AF:
0.00000378
ExAC
AF:
0.0000165
AC:
2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.67
BayesDel_addAF
Pathogenic
0.39
D
BayesDel_noAF
Pathogenic
0.39
CADD
Pathogenic
31
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.62
D;.;.;.
Eigen
Pathogenic
0.72
Eigen_PC
Pathogenic
0.68
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.87
D;D;D;D
M_CAP
Pathogenic
0.40
D
MetaRNN
Pathogenic
0.90
D;D;D;D
MetaSVM
Pathogenic
0.81
D
MutationAssessor
Uncertain
2.6
M;.;.;M
MutationTaster
Benign
1.0
D;D;D;D;D;D
PrimateAI
Pathogenic
0.80
T
PROVEAN
Pathogenic
-6.3
D;D;D;D
REVEL
Pathogenic
0.84
Sift
Uncertain
0.0020
D;D;D;D
Sift4G
Uncertain
0.0020
D;D;D;D
Polyphen
1.0
D;D;.;.
Vest4
0.95
MutPred
0.54
Gain of MoRF binding (P = 0.05);.;.;Gain of MoRF binding (P = 0.05);
MVP
0.95
MPC
1.0
ClinPred
0.93
D
GERP RS
5.0
Varity_R
0.86
gMVP
0.85

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.14
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: rs141242566; hg19: chr3-184071510; API