Variant 19-50320585-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_004977.3(KCNC3):c.2170+8G>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000106 in 1,609,332 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

KCNC3
NM_004977.3 splice_region, intron

Scores

Splicing: ADA: 0.00001271

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0240

Variant links:

Genes affected

KCNC3 (HGNC:6235): (potassium voltage-gated channel subfamily C member 3) The Shaker gene family of Drosophila encodes components of voltage-gated potassium channels and is comprised of four subfamilies. Based on sequence similarity, this gene is similar to one of these subfamilies, namely the Shaw subfamily. The protein encoded by this gene belongs to the delayed rectifier class of channel proteins and is an integral membrane protein that mediates the voltage-dependent potassium ion permeability of excitable membranes. Alternate splicing results in several transcript variants. [provided by RefSeq, Mar 2014]

KCNC3 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.9).

BP6

Variant 19-50320585-C-A is Benign according to our data. Variant chr19-50320585-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 1656509.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High AC in GnomAdExome4 at 15 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	MANE
KCNC3	NM_004977.3 linkuse as main transcript	c.2170+8G>T	splice_region_variant, intron_variant	ENST00000477616.2
KCNC3	NM_001372305.1 linkuse as main transcript	c.1942+8G>T	splice_region_variant, intron_variant
KCNC3	NR_110912.2 linkuse as main transcript	n.260+8G>T	splice_region_variant, intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	Effect	TSL	MANE	Appris
KCNC3	ENST00000477616.2 linkuse as main transcript	c.2170+8G>T	splice_region_variant, intron_variant	1	NM_004977.3
KCNC3	ENST00000376959.6 linkuse as main transcript	c.2170+8G>T	splice_region_variant, intron_variant	5		A2
KCNC3	ENST00000474951.1 linkuse as main transcript	c.118+8G>T	splice_region_variant, intron_variant	2
KCNC3	ENST00000670667.1 linkuse as main transcript	c.2170+8G>T	splice_region_variant, intron_variant			P3

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151750

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000411

AC:

AN:

243258

Hom.:

AF XY:

0.00

AC XY:

AN XY:

131982

show subpopulations

Gnomad AFR exome

AF:

0.0000639

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000103

AC:

AN:

1457582

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

724868

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000226

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:

0.0000126

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151750

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74088

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.0000656

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000774

Hom.:

Bravo

AF:

0.0000189

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Invitae

Oct 17, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.90

CADD

Benign

0.43

DANN

Benign

0.38

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000013

dbscSNV1_RF

Benign

0.046

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