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rs121909135

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM1PM2PP3_StrongPP5

The NM_000085.5(CLCNKB):c.1294T>C(p.Tyr432His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 33)
Failed GnomAD Quality Control

Consequence

CLCNKB
NM_000085.5 missense

Scores

2
7
4

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: -1.23
Variant links:
Genes affected
CLCNKB (HGNC:2027): (chloride voltage-gated channel Kb) The protein encoded by this gene is a member of the family of voltage-gated chloride channels. Chloride channels have several functions, including the regulation of cell volume, membrane potential stabilization, signal transduction and transepithelial transport. This gene is expressed predominantly in the kidney and may be important for renal salt reabsorption. Mutations in this gene are associated with autosomal recessive Bartter syndrome type 3 (BS3). Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 9 ACMG points.

PM1
In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 1 uncertain in NM_000085.5
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.987
PP5
Variant 1-16051544-T-C is Pathogenic according to our data. Variant chr1-16051544-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 7595.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CLCNKBNM_000085.5 linkuse as main transcriptc.1294T>C p.Tyr432His missense_variant 13/20 ENST00000375679.9
CLCNKBNM_001165945.2 linkuse as main transcriptc.787T>C p.Tyr263His missense_variant 6/13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CLCNKBENST00000375679.9 linkuse as main transcriptc.1294T>C p.Tyr432His missense_variant 13/201 NM_000085.5 P4P51801-1

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
0
AN:
152036
Hom.:
0
Cov.:
33
FAILED QC
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
34
GnomAD4 genome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
152036
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74262
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113

ClinVar

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

Submissions by phenotype

Bartter disease type 3 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMOct 01, 1997- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.43
BayesDel_addAF
Pathogenic
0.22
D
BayesDel_noAF
Uncertain
0.070
Cadd
Benign
15
Dann
Uncertain
0.99
Eigen
Benign
-0.65
Eigen_PC
Benign
-0.95
FATHMM_MKL
Benign
0.073
N
LIST_S2
Uncertain
0.89
D;T;T
M_CAP
Uncertain
0.19
D
MetaRNN
Pathogenic
0.99
D;D;D
MetaSVM
Uncertain
0.42
D
MutationTaster
Benign
6.6e-7
A;A
Sift4G
Uncertain
0.018
D;D;D
Polyphen
0.95
.;P;.
Vest4
0.77
MutPred
0.82
.;Gain of helix (P = 0.0854);.;
MVP
0.83
MPC
0.60
ClinPred
0.86
D
GERP RS
-3.8
Varity_R
0.47
gMVP
0.76

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: rs121909135; hg19: chr1-16378039; API