1-16022705-G-A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4

The NM_004070.4(CLCNKA):c.86G>A(p.Arg29His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000105 in 1,538,986 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

CLCNKA
NM_004070.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.21

Publications

0 publications found

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]

CLCNKA Gene-Disease associations (from GenCC):

Bartter disease type 4B
Inheritance: Unknown, AR Classification: MODERATE, LIMITED Submitted by: Ambry Genetics, G2P
Bartter syndrome type 4
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

CLCNKA links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.2937315).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CLCNKA	NM_004070.4 link	c.86G>A	p.Arg29His	missense_variant	Exon 2 of 20	ENST00000331433.5	NP_004061.3	P51800-1
CLCNKA	NM_001042704.2 link	c.86G>A	p.Arg29His	missense_variant	Exon 2 of 20		NP_001036169.1	P51800-3
CLCNKA	NM_001257139.2 link	c.86G>A	p.Arg29His	missense_variant	Exon 2 of 19		NP_001244068.1	P51800-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CLCNKA	ENST00000331433.5 link	c.86G>A	p.Arg29His	missense_variant	Exon 2 of 20	1	NM_004070.4	ENSP00000332771.4		P51800-1

Frequencies

GnomAD3 genomes

AF:

0.0000724

AC:

AN:

152022

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000327

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000786

AC:

AN:

152698

AF XY:

0.0000622

show subpopulations

Gnomad AFR exome

AF:

0.0000984

Gnomad AMR exome

AF:

0.000129

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000113

Gnomad OTH exome

AF:

0.000243

GnomAD4 exome

AF:

0.000109

AC:

151

AN:

1386846

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

683664

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31914

American (AMR)

AF:

0.000114

AC:

AN:

34956

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23674

East Asian (EAS)

AF:

0.00

AC:

AN:

36468

South Asian (SAS)

AF:

0.0000662

AC:

AN:

75482

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48530

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5562

European-Non Finnish (NFE)

AF:

0.000129

AC:

138

AN:

1072794

Other (OTH)

AF:

0.0000696

AC:

AN:

57466

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.451

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152140

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74388

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41516

American (AMR)

AF:

0.000327

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5142

South Asian (SAS)

AF:

0.00

AC:

AN:

4812

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000735

AC:

AN:

67984

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.452

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000536

Hom.:

Bravo

AF:

0.0000491

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.0000514

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

May 09, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.86G>A (p.R29H) alteration is located in exon 2 (coding exon 1) of the CLCNKA gene. This alteration results from a G to A substitution at nucleotide position 86, causing the arginine (R) at amino acid position 29 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.21

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.15

.;.;T

Eigen

Benign

0.053

Eigen_PC

Benign

-0.075

FATHMM_MKL

Benign

0.37

LIST_S2

Uncertain

0.92

D;D;D

M_CAP

Benign

0.057

MetaRNN

Benign

0.29

T;T;T

MetaSVM

Benign

-0.38

MutationAssessor

Uncertain

2.3

M;M;M

PhyloP100

2.2

PrimateAI

Uncertain

0.57

PROVEAN

Benign

-1.9

N;N;N

REVEL

Uncertain

0.37

Sift

Uncertain

0.0020

D;D;D

Sift4G

Uncertain

0.010

D;D;D

Polyphen

0.99

.;.;D

Vest4

0.36

MVP

0.82

MPC

0.50

ClinPred

0.16

GERP RS

2.0

Varity_R

0.17

gMVP

0.25

Mutation Taster

=97/3

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

1-16022705-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over