chr17-63524297-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_001278919.2(KCNH6):​c.235G>A​(p.Val79Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000254 in 1,613,832 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

KCNH6
NM_001278919.2 missense

Scores

2
3
14

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.609
Variant links:
Genes affected
KCNH6 (HGNC:18862): (potassium voltage-gated channel subfamily H member 6) Voltage-gated potassium (Kv) channels represent the most complex class of voltage-gated ion channels from both functional and structural standpoints. Their diverse functions include regulating neurotransmitter release, heart rate, insulin secretion, neuronal excitability, epithelial electrolyte transport, smooth muscle contraction, and cell volume. This gene encodes a member of the potassium channel, voltage-gated, subfamily H. This member is a pore-forming (alpha) subunit. Alternative splicing results in multiple transcript variants that encode different isoforms. [provided by RefSeq, Jul 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.09776324).
BP6
Variant 17-63524297-G-A is Benign according to our data. Variant chr17-63524297-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3113250.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KCNH6NM_001278919.2 linkuse as main transcriptc.235G>A p.Val79Met missense_variant 2/13 ENST00000314672.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KCNH6ENST00000314672.10 linkuse as main transcriptc.235G>A p.Val79Met missense_variant 2/132 NM_001278919.2 P1

Frequencies

GnomAD3 genomes
AF:
0.0000723
AC:
11
AN:
152232
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251312
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135864
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000205
AC:
30
AN:
1461600
Hom.:
0
Cov.:
32
AF XY:
0.0000206
AC XY:
15
AN XY:
727090
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000225
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000723
AC:
11
AN:
152232
Hom.:
0
Cov.:
32
AF XY:
0.0000672
AC XY:
5
AN XY:
74376
show subpopulations
Gnomad4 AFR
AF:
0.0000724
Gnomad4 AMR
AF:
0.000327
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000192
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000453
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000247
AC:
3
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsDec 09, 2023This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.073
BayesDel_addAF
Benign
-0.093
T
BayesDel_noAF
Benign
-0.20
CADD
Benign
15
DANN
Benign
0.63
DEOGEN2
Uncertain
0.55
.;.;.;.;D
Eigen
Benign
-0.50
Eigen_PC
Benign
-0.47
FATHMM_MKL
Benign
0.033
N
LIST_S2
Benign
0.84
T;.;T;T;T
M_CAP
Pathogenic
0.40
D
MetaRNN
Benign
0.098
T;T;T;T;T
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Uncertain
2.2
M;M;M;.;M
MutationTaster
Benign
0.68
N;N;N;N;N
PrimateAI
Benign
0.29
T
PROVEAN
Benign
-0.97
N;.;.;N;.
REVEL
Uncertain
0.35
Sift
Benign
0.25
T;.;.;T;.
Sift4G
Benign
0.26
T;T;T;T;T
Polyphen
0.020
B;B;B;.;B
Vest4
0.11
MVP
0.57
MPC
0.19
ClinPred
0.059
T
GERP RS
2.0
Varity_R
0.060
gMVP
0.17

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: rs372365847; hg19: chr17-61601658; COSMIC: COSV59003120; COSMIC: COSV59003120; API