rs115910575

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_000085.5(CLCNKB):c.1409-6T>C variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000592 in 1,612,826 control chromosomes in the GnomAD database, including 8 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0029 ( 3 hom., cov: 33)

Exomes 𝑓: 0.00035 ( 5 hom. )

Consequence

CLCNKB
NM_000085.5 splice_region, intron

Scores

Splicing: ADA: 0.00009232

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.00400

Publications

0 publications found

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]

CLCNKB Gene-Disease associations (from GenCC):

Bartter disease type 3
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
Bartter disease type 4B
Inheritance: AR Classification: STRONG Submitted by: G2P
Bartter syndrome type 4
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Gitelman syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

CLCNKB links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.92).

BP6

Variant 1-16052192-T-C is Benign according to our data. Variant chr1-16052192-T-C is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 447091.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00289 (440/152368) while in subpopulation AFR AF = 0.00959 (399/41588). AF 95% confidence interval is 0.00882. There are 3 homozygotes in GnomAd4. There are 194 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 3 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000085.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CLCNKB	NM_000085.5	MANE Select	c.1409-6T>C		splice_region intron	N/A	NP_000076.2
	CLCNKB	NM_001165945.2		c.902-6T>C		splice_region intron	N/A	NP_001159417.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein
CLCNKB	ENST00000375679.9	TSL:1 MANE Select	c.1409-6T>C	splice_region intron	N/A	ENSP00000364831.5
CLCNKB	ENST00000906263.1		c.1463-6T>C	splice_region intron	N/A	ENSP00000576322.1
CLCNKB	ENST00000906270.1		c.1463-6T>C	splice_region intron	N/A	ENSP00000576329.1

Frequencies

GnomAD3 genomes

AF:

0.00288

AC:

438

AN:

152250

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00960

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00150

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00949

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00382

GnomAD2 exomes

AF:

0.000771

AC:

192

AN:

248930

AF XY:

0.000503

show subpopulations

Gnomad AFR exome

AF:

0.00903

Gnomad AMR exome

AF:

0.00110

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000538

Gnomad OTH exome

AF:

0.000492

GnomAD4 exome

AF:

0.000353

AC:

515

AN:

1460458

Hom.:

Cov.:

AF XY:

0.000296

AC XY:

215

AN XY:

726574

show subpopulations

African (AFR)

AF:

0.00986

AC:

330

AN:

33466

American (AMR)

AF:

0.000984

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86240

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52346

Middle Eastern (MID)

AF:

0.00178

AC:

AN:

5626

European-Non Finnish (NFE)

AF:

0.0000675

AC:

AN:

1111882

Other (OTH)

AF:

0.000911

AC:

AN:

60354

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

Heterozygous variant carriers

122

152

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00289

AC:

440

AN:

152368

Hom.:

Cov.:

AF XY:

0.00260

AC XY:

194

AN XY:

74522

show subpopulations

African (AFR)

AF:

0.00959

AC:

399

AN:

41588

American (AMR)

AF:

0.00150

AC:

AN:

15312

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10630

Middle Eastern (MID)

AF:

0.0136

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000882

AC:

AN:

68028

Other (OTH)

AF:

0.00378

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.490

Heterozygous variant carriers

108

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00120

Hom.:

Bravo

AF:

0.00336

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.000119

ClinVar

ClinVar submissions as Germline

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.92

CADD

Benign

3.0

(source)

DANN

Benign

0.44

PhyloP100

-0.0040

PromoterAI

-0.016

Neutral

(source)

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000092

dbscSNV1_RF

Benign

0.018

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over