chr1-16023922-G-T

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_004070.4(CLCNKA):​c.223G>T​(p.Val75Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000791 in 1,614,092 control chromosomes in the GnomAD database, including 21 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00041 ( 1 hom., cov: 33)
Exomes 𝑓: 0.00083 ( 20 hom. )

Consequence

CLCNKA
NM_004070.4 missense

Scores

4
14

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.52
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.01260379).
BP6
Variant 1-16023922-G-T is Benign according to our data. Variant chr1-16023922-G-T is described in ClinVar as [Benign]. Clinvar id is 2638352.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr1-16023922-G-T is described in Lovd as [Likely_benign].
BS2
High Homozygotes in GnomAdExome4 at 20 AR,Digenic gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CLCNKANM_004070.4 linkuse as main transcriptc.223G>T p.Val75Phe missense_variant 3/20 ENST00000331433.5 NP_004061.3
CLCNKANM_001042704.2 linkuse as main transcriptc.223G>T p.Val75Phe missense_variant 3/20 NP_001036169.1
CLCNKANM_001257139.2 linkuse as main transcriptc.223G>T p.Val75Phe missense_variant 3/19 NP_001244068.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CLCNKAENST00000331433.5 linkuse as main transcriptc.223G>T p.Val75Phe missense_variant 3/201 NM_004070.4 ENSP00000332771 P4P51800-1

Frequencies

GnomAD3 genomes
AF:
0.000414
AC:
63
AN:
152218
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000864
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.0108
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00179
AC:
449
AN:
251418
Hom.:
9
AF XY:
0.00244
AC XY:
331
AN XY:
135896
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000173
Gnomad ASJ exome
AF:
0.00119
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0134
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000132
Gnomad OTH exome
AF:
0.00114
GnomAD4 exome
AF:
0.000831
AC:
1215
AN:
1461756
Hom.:
20
Cov.:
32
AF XY:
0.00119
AC XY:
862
AN XY:
727190
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000179
Gnomad4 ASJ exome
AF:
0.000842
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0120
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000683
Gnomad4 OTH exome
AF:
0.00101
GnomAD4 genome
AF:
0.000407
AC:
62
AN:
152336
Hom.:
1
Cov.:
33
AF XY:
0.000644
AC XY:
48
AN XY:
74492
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000864
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.0106
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000201
Hom.:
0
Bravo
AF:
0.000140
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.00201
AC:
244
Asia WGS
AF:
0.00462
AC:
16
AN:
3478
EpiCase
AF:
0.000545
EpiControl
AF:
0.000178

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJun 01, 2022CLCNKA: BS1, BS2 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Uncertain
-0.040
CADD
Benign
18
DANN
Benign
0.90
DEOGEN2
Benign
0.12
.;.;T
Eigen
Benign
-0.73
Eigen_PC
Benign
-0.87
FATHMM_MKL
Benign
0.068
N
LIST_S2
Benign
0.53
T;T;T
MetaRNN
Benign
0.013
T;T;T
MetaSVM
Uncertain
-0.14
T
MutationAssessor
Uncertain
2.1
M;M;M
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-1.5
N;N;N
REVEL
Uncertain
0.42
Sift
Benign
0.30
T;D;T
Sift4G
Benign
0.50
T;D;T
Polyphen
0.40
.;.;B
Vest4
0.63
MVP
0.85
MPC
0.47
ClinPred
0.062
T
GERP RS
1.4
Varity_R
0.10
gMVP
0.46

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.12
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: rs200509489; hg19: chr1-16350417; API