Genetic Variant NM_139318.5:c.2890C>A (chr14-62707585-G-T) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_ModerateBP6_ModerateBS2

The NM_139318.5(KCNH5):c.2890C>A(p.Gln964Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000218 in 1,375,954 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

KCNH5
NM_139318.5 missense

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 7.34

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 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.15771776).

BP6

Variant 14-62707585-G-T is Benign according to our data. Variant chr14-62707585-G-T is described in ClinVar as [Benign]. Clinvar id is 241863.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High AC in GnomAdExome4 at 30 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KCNH5	NM_139318.5 link	c.2890C>A	p.Gln964Lys	missense_variant	Exon 11 of 11	ENST00000322893.12	NP_647479.2	Q8NCM2-1
KCNH5	NM_172375.3 link	c.*857C>A		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
KCNH5	ENST00000322893.12 link	c.2890C>A	p.Gln964Lys	missense_variant	Exon 11 of 11	1	NM_139318.5	ENSP00000321427.7		Q8NCM2-1
KCNH5	ENST00000420622 link	c.*857C>A		3_prime_UTR_variant	Exon 10 of 10	1		ENSP00000395439.2		Q8NCM2-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000103

AC:

AN:

194438

Hom.:

AF XY:

0.0000195

AC XY:

AN XY:

102522

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000217

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000218

AC:

AN:

1375954

Hom.:

Cov.:

AF XY:

0.0000282

AC XY:

AN XY:

673614

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000253

Gnomad4 OTH exome

AF:

0.0000352

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000827

AC:

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Early infantile epileptic encephalopathy with suppression bursts

Benign:1

Sep 17, 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

0.062

BayesDel_addAF

Uncertain

0.053

BayesDel_noAF

Benign

-0.13

CADD

Benign

DANN

Benign

0.72

DEOGEN2

Benign

0.085

Eigen

Benign

-0.30

Eigen_PC

Benign

-0.0098

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.67

M_CAP

Benign

0.074

MetaRNN

Benign

0.16

MetaSVM

Uncertain

0.42

MutationAssessor

Benign

0.14

PrimateAI

Uncertain

0.53

PROVEAN

Benign

0.040

REVEL

Uncertain

0.41

Sift

Benign

0.35

Sift4G

Benign

1.0

Polyphen

0.0

Vest4

0.23

MutPred

0.32

Gain of catalytic residue at P966 (P = 0);

MVP

0.51

MPC

0.14

ClinPred

0.36

GERP RS

5.4

Varity_R

0.21

gMVP

0.14

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over