rs761523326

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_139318.5(KCNH5):​c.2828C>T​(p.Ser943Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000619 in 1,583,550 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 Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. S943S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000065 ( 0 hom. )

Consequence

KCNH5
NM_139318.5 missense

Scores

8
11

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 4.71

Publications

3 publications found
Variant links:
Genes affected
KCNH5 (HGNC:6254): (potassium voltage-gated channel subfamily H member 5) This gene encodes a member of voltage-gated potassium channels. Members of this family have diverse functions, including regulating neurotransmitter and hormone release, cardiac function, and cell volume. This protein is an outward-rectifying, noninactivating channel. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]
KCNH5 Gene-Disease associations (from GenCC):
  • infantile-onset epilepsy
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • developmental and epileptic encephalopathy 112
    Inheritance: AD Classification: STRONG Submitted by: G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.21811306).
BP6
Variant 14-62707647-G-A is Benign according to our data. Variant chr14-62707647-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 530414.
BS2
High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
KCNH5NM_139318.5 linkc.2828C>T p.Ser943Leu missense_variant Exon 11 of 11 ENST00000322893.12 NP_647479.2 Q8NCM2-1
KCNH5NM_172375.3 linkc.*795C>T 3_prime_UTR_variant Exon 10 of 10 NP_758963.1 Q8NCM2-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
KCNH5ENST00000322893.12 linkc.2828C>T p.Ser943Leu missense_variant Exon 11 of 11 1 NM_139318.5 ENSP00000321427.7 Q8NCM2-1
KCNH5ENST00000420622.6 linkc.*795C>T 3_prime_UTR_variant Exon 10 of 10 1 ENSP00000395439.2 Q8NCM2-2

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
151932
Hom.:
0
Cov.:
32
show subpopulations
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:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000377
AC:
9
AN:
238716
AF XY:
0.0000466
show subpopulations
Gnomad AFR exome
AF:
0.0000622
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000643
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000650
AC:
93
AN:
1431618
Hom.:
0
Cov.:
30
AF XY:
0.0000650
AC XY:
46
AN XY:
707524
show subpopulations
African (AFR)
AF:
0.0000308
AC:
1
AN:
32434
American (AMR)
AF:
0.00
AC:
0
AN:
41788
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24642
East Asian (EAS)
AF:
0.0000256
AC:
1
AN:
39102
South Asian (SAS)
AF:
0.0000240
AC:
2
AN:
83302
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52840
Middle Eastern (MID)
AF:
0.000178
AC:
1
AN:
5610
European-Non Finnish (NFE)
AF:
0.0000805
AC:
88
AN:
1093034
Other (OTH)
AF:
0.00
AC:
0
AN:
58866
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
5
10
16
21
26
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000329
AC:
5
AN:
151932
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74174
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41346
American (AMR)
AF:
0.00
AC:
0
AN:
15256
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4812
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10544
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
67998
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000143
Hom.:
0
Bravo
AF:
0.0000453
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.0000412
AC:
5

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Developmental and epileptic encephalopathy Uncertain:1Benign:1
Oct 31, 2018
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 22, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Uncertain
0.067
T
BayesDel_noAF
Uncertain
0.040
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.25
T
Eigen
Benign
-0.12
Eigen_PC
Benign
0.094
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.89
D
M_CAP
Benign
0.075
D
MetaRNN
Benign
0.22
T
MetaSVM
Uncertain
0.62
D
MutationAssessor
Benign
1.4
L
PhyloP100
4.7
PrimateAI
Uncertain
0.55
T
PROVEAN
Benign
-2.2
N
REVEL
Uncertain
0.51
Sift
Benign
0.068
T
Sift4G
Benign
0.20
T
Polyphen
0.012
B
Vest4
0.41
MutPred
0.25
Gain of catalytic residue at S943 (P = 0.0031);
MVP
0.73
MPC
0.098
ClinPred
0.094
T
GERP RS
5.1
Varity_R
0.23
gMVP
0.42
Mutation Taster
=78/22
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs761523326; hg19: chr14-63174365; COSMIC: COSV59765241; COSMIC: COSV59765241; API