rs760127525

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4BP6BS2

The NM_139318.5(KCNH5):c.787G>A(p.Val263Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,856 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).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

KCNH5
NM_139318.5 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 7.85

Publications

6 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

KCNH5 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.42018655).

BP6

Variant 14-62981027-C-T is Benign according to our data. Variant chr14-62981027-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 530474.

BS2

High AC in GnomAdExome4 at 7 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KCNH5	NM_139318.5 link	c.787G>A	p.Val263Ile	missense_variant	Exon 6 of 11	ENST00000322893.12	NP_647479.2	Q8NCM2-1
KCNH5	NM_172375.3 link	c.787G>A	p.Val263Ile	missense_variant	Exon 6 of 10		NP_758963.1	Q8NCM2-2
KCNH5	XM_047431275.1 link	c.787G>A	p.Val263Ile	missense_variant	Exon 6 of 10		XP_047287231.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
KCNH5	ENST00000322893.12 link	c.787G>A	p.Val263Ile	missense_variant	Exon 6 of 11	1	NM_139318.5	ENSP00000321427.7	Q8NCM2-1
KCNH5	ENST00000420622.6 link	c.787G>A	p.Val263Ile	missense_variant	Exon 6 of 10	1		ENSP00000395439.2	Q8NCM2-2
KCNH5	ENST00000394964.3 link	n.952G>A		non_coding_transcript_exon_variant	Exon 6 of 7	1
KCNH5	ENST00000394968.2 link	c.613G>A	p.Val205Ile	missense_variant	Exon 6 of 11	2		ENSP00000378419.1	Q8NCM2-3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251318

AF XY:

0.00000736

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1461856

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727232

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.0000224

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39690

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000360

AC:

AN:

1111994

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

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

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.0000165

AC:

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 112

Uncertain:1

Feb 25, 2022

New York Genome Center

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Developmental and epileptic encephalopathy

Benign:1

Jul 22, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Pathogenic

0.31

BayesDel_noAF

Pathogenic

0.20

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.51

D;.;.

Eigen

Uncertain

0.48

Eigen_PC

Uncertain

0.56

FATHMM_MKL

Uncertain

0.89

LIST_S2

Uncertain

0.96

D;D;D

M_CAP

Benign

0.073

MetaRNN

Benign

0.42

T;T;T

MetaSVM

Pathogenic

1.0

MutationAssessor

Benign

1.3

L;L;.

PhyloP100

7.9

PrimateAI

Pathogenic

0.87

PROVEAN

Benign

-0.62

N;N;N

REVEL

Uncertain

0.62

Sift

Benign

0.079

T;T;T

Sift4G

Benign

0.24

T;T;T

Polyphen

0.99

D;P;P

Vest4

0.58

MutPred

0.35

Gain of catalytic residue at T268 (P = 9e-04);Gain of catalytic residue at T268 (P = 9e-04);.;

MVP

0.79

MPC

1.6

ClinPred

0.88

GERP RS

5.5

Varity_R

0.19

gMVP

0.47

Mutation Taster

=55/45

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over