rs754439480

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP7

The NM_139318.5(KCNH5):​c.1302A>T​(p.Gly434=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,730 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. G434G) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

KCNH5
NM_139318.5 synonymous

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.48
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.34).
BP7
Synonymous conserved (PhyloP=1.48 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KCNH5NM_139318.5 linkuse as main transcriptc.1302A>T p.Gly434= synonymous_variant 7/11 ENST00000322893.12
KCNH5NM_172375.3 linkuse as main transcriptc.1302A>T p.Gly434= synonymous_variant 7/10
KCNH5XM_047431275.1 linkuse as main transcriptc.1302A>T p.Gly434= synonymous_variant 7/10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KCNH5ENST00000322893.12 linkuse as main transcriptc.1302A>T p.Gly434= synonymous_variant 7/111 NM_139318.5 P1Q8NCM2-1
KCNH5ENST00000420622.6 linkuse as main transcriptc.1302A>T p.Gly434= synonymous_variant 7/101 Q8NCM2-2
KCNH5ENST00000394964.3 linkuse as main transcriptn.1467A>T non_coding_transcript_exon_variant 7/71
KCNH5ENST00000394968.2 linkuse as main transcriptc.1128A>T p.Gly376= synonymous_variant 7/112 Q8NCM2-3

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461730
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
727164
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:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.34
CADD
Benign
9.9
DANN
Benign
0.73

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs754439480; hg19: chr14-63416918; API