dbSNP rs150796358: CLCN1:p.Glu955Gly (chr7-143351862-A-G) – ACMG Classification: Uncertain_significance (0 pts)

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 (★).

Frequency

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

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

CLCN1
NM_000083.3 missense

Scores

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]

CLCN1 links:

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 rank	MANE	Protein	UniProt
CLCN1	NM_000083.3 link	c.2864A>G	p.Glu955Gly	missense_variant	Exon 23 of 23	ENST00000343257.7	NP_000074.3	P35523
CLCN1	NR_046453.2 link	n.2819A>G		non_coding_transcript_exon_variant	Exon 22 of 22

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CLCN1	ENST00000343257.7 link	c.2864A>G	p.Glu955Gly	missense_variant	Exon 23 of 23	1	NM_000083.3	ENSP00000339867.2	P35523
CLCN1	ENST00000650516.2 link	c.2864A>G	p.Glu955Gly	missense_variant	Exon 23 of 23			ENSP00000498052.2	A0A3B3IU72
CLCN1	ENST00000432192.6 link	n.*2149A>G		downstream_gene_variant		1		ENSP00000395949.2	H7C0N6

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152114

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:

0.000207

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:

AN:

1461558

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

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:

AN:

152232

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

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

Mar 17, 2022

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Not 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

BayesDel_noAF

Benign

-0.14

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.19

Eigen

Uncertain

0.54

Eigen_PC

Uncertain

0.49

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.63

M_CAP

Uncertain

0.27

MetaRNN

Uncertain

0.54

MetaSVM

Uncertain

0.58

MutationAssessor

Uncertain

2.3

PrimateAI

Uncertain

0.48

PROVEAN

Benign

-1.7

REVEL

Uncertain

0.37

Sift

Uncertain

0.010

Sift4G

Benign

0.14

Polyphen

1.0

Vest4

0.37

MutPred

0.24

Loss of stability (P = 0.0491);

MVP

0.96

MPC

0.22

ClinPred

0.95

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over