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rs150796358

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 0P and 0B.

The NM_000083.3(CLCN1):c.2864A>G(p.Glu955Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000434 in 1,613,790 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E955V) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

CLCN1
NM_000083.3 missense

Scores

1
11
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.99
Variant links:
Genes affected
CLCN1 (HGNC:2019): (chloride voltage-gated channel 1) The CLCN family of voltage-dependent chloride channel genes comprises nine members (CLCN1-7, Ka and Kb) which demonstrate quite diverse functional characteristics while sharing significant sequence homology. The protein encoded by this gene regulates the electric excitability of the skeletal muscle membrane. Mutations in this gene cause two forms of inherited human muscle disorders: recessive generalized myotonia congenita (Becker) and dominant myotonia (Thomsen). Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CLCN1NM_000083.3 linkuse as main transcriptc.2864A>G p.Glu955Gly missense_variant 23/23 ENST00000343257.7
CLCN1NR_046453.2 linkuse as main transcriptn.2819A>G non_coding_transcript_exon_variant 22/22

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CLCN1ENST00000343257.7 linkuse as main transcriptc.2864A>G p.Glu955Gly missense_variant 23/231 NM_000083.3 P4
CLCN1ENST00000650516.2 linkuse as main transcriptc.2864A>G p.Glu955Gly missense_variant 23/23 A2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152114
Hom.:
0
Cov.:
32
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:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000478
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461558
Hom.:
0
Cov.:
32
AF XY:
0.00000413
AC XY:
3
AN XY:
727000
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:
0.0000580
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152232
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74418
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:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000473

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxMar 17, 2022Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Uncertain
0.065
T
BayesDel_noAF
Benign
-0.14
Cadd
Uncertain
25
Dann
Pathogenic
1.0
DEOGEN2
Benign
0.19
T
Eigen
Uncertain
0.54
Eigen_PC
Uncertain
0.49
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.63
T
M_CAP
Uncertain
0.27
D
MetaRNN
Uncertain
0.54
D
MetaSVM
Uncertain
0.58
D
MutationAssessor
Uncertain
2.3
M
MutationTaster
Benign
0.99
D
PrimateAI
Uncertain
0.48
T
PROVEAN
Benign
-1.7
N
REVEL
Uncertain
0.37
Sift
Uncertain
0.010
D
Sift4G
Benign
0.14
T
Polyphen
1.0
D
Vest4
0.37
MutPred
0.24
Loss of stability (P = 0.0491);
MVP
0.96
MPC
0.22
ClinPred
0.95
D
GERP RS
4.8
Varity_R
0.15
gMVP
0.31

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs150796358; hg19: chr7-143048955; API