7-143316197-C-G

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000083.3(CLCN1):​c.-16C>G variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0029 in 1,455,416 control chromosomes in the GnomAD database, including 150 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0045 ( 11 hom., cov: 32)
Exomes 𝑓: 0.0029 ( 150 hom. )
Failed GnomAD Quality Control

Consequence

CLCN1
NM_000083.3 5_prime_UTR

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.548
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 7-143316197-C-G is Benign according to our data. Variant chr7-143316197-C-G is described in ClinVar as [Benign]. Clinvar id is 383610.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAdExome4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.0703 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CLCN1NM_000083.3 linkuse as main transcriptc.-16C>G 5_prime_UTR_variant 1/23 ENST00000343257.7 NP_000074.3
CLCN1NR_046453.2 linkuse as main transcriptn.87C>G non_coding_transcript_exon_variant 1/22

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CLCN1ENST00000343257.7 linkuse as main transcriptc.-16C>G 5_prime_UTR_variant 1/231 NM_000083.3 ENSP00000339867 P4
CLCN1ENST00000650516.2 linkuse as main transcriptc.-16C>G 5_prime_UTR_variant 1/23 ENSP00000498052 A2

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
682
AN:
151748
Hom.:
11
Cov.:
32
FAILED QC
Gnomad AFR
AF:
0.00123
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0362
Gnomad ASJ
AF:
0.000576
Gnomad EAS
AF:
0.00836
Gnomad SAS
AF:
0.000830
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000191
Gnomad OTH
AF:
0.00962
GnomAD3 exomes
AF:
0.0117
AC:
2877
AN:
246616
Hom.:
118
AF XY:
0.00918
AC XY:
1228
AN XY:
133808
show subpopulations
Gnomad AFR exome
AF:
0.000881
Gnomad AMR exome
AF:
0.0761
Gnomad ASJ exome
AF:
0.000700
Gnomad EAS exome
AF:
0.00699
Gnomad SAS exome
AF:
0.000818
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000134
Gnomad OTH exome
AF:
0.0111
GnomAD4 exome
AF:
0.00290
AC:
4216
AN:
1455416
Hom.:
150
Cov.:
31
AF XY:
0.00261
AC XY:
1887
AN XY:
724196
show subpopulations
Gnomad4 AFR exome
AF:
0.000569
Gnomad4 AMR exome
AF:
0.0723
Gnomad4 ASJ exome
AF:
0.000574
Gnomad4 EAS exome
AF:
0.0151
Gnomad4 SAS exome
AF:
0.000882
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000108
Gnomad4 OTH exome
AF:
0.00246
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00448
AC:
681
AN:
151864
Hom.:
11
Cov.:
32
AF XY:
0.00477
AC XY:
354
AN XY:
74226
show subpopulations
Gnomad4 AFR
AF:
0.00123
Gnomad4 AMR
AF:
0.0361
Gnomad4 ASJ
AF:
0.000576
Gnomad4 EAS
AF:
0.00838
Gnomad4 SAS
AF:
0.000831
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000191
Gnomad4 OTH
AF:
0.00952
Alfa
AF:
0.00411
Hom.:
2

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxOct 31, 2016This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
0.41
DANN
Benign
0.69

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs191902231; hg19: chr7-143013290; API