rs376391048

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_139318.5(KCNH5):​c.810C>T​(p.Phe270Phe) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000304 in 1,614,100 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

KCNH5
NM_139318.5 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 1.43
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.55).
BP6
Variant 14-62981004-G-A is Benign according to our data. Variant chr14-62981004-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 461401.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=1.43 with no splicing effect.
BS2
High AC in GnomAd4 at 9 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KCNH5NM_139318.5 linkuse as main transcriptc.810C>T p.Phe270Phe synonymous_variant 6/11 ENST00000322893.12 NP_647479.2 Q8NCM2-1
KCNH5NM_172375.3 linkuse as main transcriptc.810C>T p.Phe270Phe synonymous_variant 6/10 NP_758963.1 Q8NCM2-2
KCNH5XM_047431275.1 linkuse as main transcriptc.810C>T p.Phe270Phe synonymous_variant 6/10 XP_047287231.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KCNH5ENST00000322893.12 linkuse as main transcriptc.810C>T p.Phe270Phe synonymous_variant 6/111 NM_139318.5 ENSP00000321427.7 Q8NCM2-1
KCNH5ENST00000420622.6 linkuse as main transcriptc.810C>T p.Phe270Phe synonymous_variant 6/101 ENSP00000395439.2 Q8NCM2-2
KCNH5ENST00000394964.3 linkuse as main transcriptn.975C>T non_coding_transcript_exon_variant 6/71
KCNH5ENST00000394968.2 linkuse as main transcriptc.636C>T p.Phe212Phe synonymous_variant 6/112 ENSP00000378419.1 Q8NCM2-3

Frequencies

GnomAD3 genomes
AF:
0.0000592
AC:
9
AN:
152126
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000637
AC:
16
AN:
251292
Hom.:
0
AF XY:
0.0000442
AC XY:
6
AN XY:
135802
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000174
Gnomad ASJ exome
AF:
0.0000993
Gnomad EAS exome
AF:
0.000218
Gnomad SAS exome
AF:
0.000131
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000274
AC:
40
AN:
1461856
Hom.:
0
Cov.:
31
AF XY:
0.0000316
AC XY:
23
AN XY:
727226
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.000134
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000101
Gnomad4 SAS exome
AF:
0.000128
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000126
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000591
AC:
9
AN:
152244
Hom.:
0
Cov.:
32
AF XY:
0.0000537
AC XY:
4
AN XY:
74436
show subpopulations
Gnomad4 AFR
AF:
0.0000481
Gnomad4 AMR
AF:
0.000392
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000508
Hom.:
0
Bravo
AF:
0.0000453
Asia WGS
AF:
0.00202
AC:
7
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Early infantile epileptic encephalopathy with suppression bursts Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 21, 2023- -
not provided Benign:1
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
KCNH5-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMar 27, 2024This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.55
CADD
Benign
8.6
DANN
Benign
0.69

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: rs376391048; hg19: chr14-63447722; COSMIC: COSV59756671; API