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GeneBe

1-16027432-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PM4PP5

The NM_004070.4(CLCNKA):c.778C>T(p.Gln260Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000316 in 1,613,886 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000033 ( 1 hom. )

Consequence

CLCNKA
NM_004070.4 stop_gained

Scores

2
2
3

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 0.124
Variant links:
Genes affected
CLCNKA (HGNC:2026): (chloride voltage-gated channel Ka) This gene is a member of the CLC family of voltage-gated chloride channels. The encoded protein is predicted to have 12 transmembrane domains, and requires a beta subunit called barttin to form a functional channel. It is thought to function in salt reabsorption in the kidney and potassium recycling in the inner ear. The gene is highly similar to CLCNKB, which is located 10 kb downstream from this gene. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM4
Stoplost variant in NM_004070.4 Downstream stopcodon found after 698 codons.
PP5
Variant 1-16027432-C-T is Pathogenic according to our data. Variant chr1-16027432-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 7590.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CLCNKANM_004070.4 linkuse as main transcriptc.778C>T p.Gln260Ter stop_gained 8/20 ENST00000331433.5
CLCNKANM_001042704.2 linkuse as main transcriptc.778C>T p.Gln260Ter stop_gained 8/20
CLCNKANM_001257139.2 linkuse as main transcriptc.649C>T p.Gln217Ter stop_gained 7/19

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CLCNKAENST00000331433.5 linkuse as main transcriptc.778C>T p.Gln260Ter stop_gained 8/201 NM_004070.4 P4P51800-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152224
Hom.:
0
Cov.:
33
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:
0.000386
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000439
AC:
11
AN:
250302
Hom.:
0
AF XY:
0.0000369
AC XY:
5
AN XY:
135472
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000600
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000328
AC:
48
AN:
1461544
Hom.:
1
Cov.:
34
AF XY:
0.0000330
AC XY:
24
AN XY:
727088
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00121
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152342
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74486
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000387
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000474
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000247
AC:
3
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Bartter disease type 4B Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMMar 01, 2008- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.37
D
BayesDel_noAF
Pathogenic
0.42
Cadd
Pathogenic
37
Dann
Uncertain
0.99
Eigen
Uncertain
0.22
Eigen_PC
Benign
-0.13
FATHMM_MKL
Benign
0.27
N
MutationTaster
Benign
1.0
A;A;A;A
Vest4
0.88
GERP RS
-0.42

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.28
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.28
Position offset: -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: rs121909138; hg19: chr1-16353927; API