Variant rs370190131 details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_012281.3(KCND2):c.1441C>T(p.Leu481Leu) variant causes a synonymous change. The variant allele was found at a frequency of 0.000497 in 1,613,502 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00045 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00050 ( 3 hom. )

Consequence

KCND2
NM_012281.3 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 4.54

Variant links:

Genes affected

KCND2 (HGNC:6238): (potassium voltage-gated channel subfamily D member 2) Voltage-gated potassium (Kv) channels represent the most complex class of voltage-gated ion channels from both functional and structural standpoints. Their diverse functions include regulating neurotransmitter release, heart rate, insulin secretion, neuronal excitability, epithelial electrolyte transport, smooth muscle contraction, and cell volume. Four sequence-related potassium channel genes - shaker, shaw, shab, and shal - have been identified in Drosophila, and each has been shown to have human homolog(s). This gene encodes a member of the potassium channel, voltage-gated, shal-related subfamily, members of which form voltage-activated A-type potassium ion channels and are prominent in the repolarization phase of the action potential. This member mediates a rapidly inactivating, A-type outward potassium current which is not under the control of the N terminus as it is in Shaker channels. [provided by RefSeq, Jul 2008]

KCND2 links:

KCND2 (HGNC:):

KCND2 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 (BayesDel_noAF=-0.25).

BP6

Variant 7-120742576-C-T is Benign according to our data. Variant chr7-120742576-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 529729.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High AC in GnomAd4 at 68 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KCND2	NM_012281.3 linkuse as main transcript	c.1441C>T	p.Leu481Leu	synonymous_variant	4/6	ENST00000331113.9	NP_036413.1	Q9NZV8A4D0V9
KCND2	XM_047420346.1 linkuse as main transcript	c.1441C>T	p.Leu481Leu	synonymous_variant	5/7		XP_047276302.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
KCND2	ENST00000331113.9 linkuse as main transcript	c.1441C>T	p.Leu481Leu	synonymous_variant	4/6	1	NM_012281.3	ENSP00000333496.4	Q9NZV8
KCND2	ENST00000425288.1 linkuse as main transcript	c.196C>T	p.Leu66Leu	synonymous_variant	3/5	4		ENSP00000415463.1	H7C445
KCND2	ENST00000473190.1 linkuse as main transcript	n.256C>T		non_coding_transcript_exon_variant	1/3	4

Frequencies

GnomAD3 genomes

AF:

0.000447

AC:

AN:

152108

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000590

Gnomad ASJ

AF:

0.00317

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.000485

Gnomad OTH

AF:

0.00239

GnomAD3 exomes

AF:

0.000602

AC:

151

AN:

250862

Hom.:

AF XY:

0.000686

AC XY:

AN XY:

135566

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000637

Gnomad ASJ exome

AF:

0.00259

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000817

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000609

Gnomad OTH exome

AF:

0.00147

GnomAD4 exome

AF:

0.000502

AC:

734

AN:

1461276

Hom.:

Cov.:

AF XY:

0.000568

AC XY:

413

AN XY:

726938

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.000626

Gnomad4 ASJ exome

AF:

0.00272

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000985

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000417

Gnomad4 OTH exome

AF:

0.000911

GnomAD4 genome

AF:

0.000447

AC:

AN:

152226

Hom.:

Cov.:

AF XY:

0.000430

AC XY:

AN XY:

74424

show subpopulations

Gnomad4 AFR

AF:

0.000144

Gnomad4 AMR

AF:

0.000589

Gnomad4 ASJ

AF:

0.00317

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000485

Gnomad4 OTH

AF:

0.00236

Alfa

AF:

0.000638

Hom.:

Bravo

AF:

0.000465

EpiCase

AF:

0.000655

EpiControl

AF:

0.000948

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Early myoclonic encephalopathy

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 22, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.25

CADD

Benign

DANN

Benign

0.79

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