Variant chr19-50320579-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_004977.3(KCNC3):c.2170+14C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00051 in 1,608,446 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.00028 ( 1 hom., cov: 29)

Exomes 𝑓: 0.00053 ( 8 hom. )

Consequence

KCNC3
NM_004977.3 intron

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0880

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 -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.88).

BP6

Variant 19-50320579-G-T is Benign according to our data. Variant chr19-50320579-G-T is described in ClinVar as [Benign]. Clinvar id is 1570014.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000276 (42/151916) while in subpopulation SAS AF= 0.00811 (39/4810). AF 95% confidence interval is 0.0061. There are 1 homozygotes in gnomad4. There are 29 alleles in male gnomad4 subpopulation. Median coverage is 29. This position pass quality control queck.

BS2

High AC in GnomAd4 at 42 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	MANE
KCNC3	NM_004977.3 linkuse as main transcript	c.2170+14C>A	intron_variant	ENST00000477616.2
KCNC3	NM_001372305.1 linkuse as main transcript	c.1942+14C>A	intron_variant
KCNC3	NR_110912.2 linkuse as main transcript	n.260+14C>A	intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	Effect	TSL	MANE	Appris
KCNC3	ENST00000477616.2 linkuse as main transcript	c.2170+14C>A	intron_variant	1	NM_004977.3
KCNC3	ENST00000376959.6 linkuse as main transcript	c.2170+14C>A	intron_variant	5		A2
KCNC3	ENST00000474951.1 linkuse as main transcript	c.118+14C>A	intron_variant	2
KCNC3	ENST00000670667.1 linkuse as main transcript	c.2170+14C>A	intron_variant			P3

Frequencies

GnomAD3 genomes

AF:

0.000277

AC:

AN:

151800

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00810

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000442

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00106

AC:

255

AN:

241046

Hom.:

AF XY:

0.00145

AC XY:

190

AN XY:

130858

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000296

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00834

Gnomad FIN exome

AF:

0.0000494

Gnomad NFE exome

AF:

0.0000185

Gnomad OTH exome

AF:

0.000338

GnomAD4 exome

AF:

0.000535

AC:

779

AN:

1456530

Hom.:

Cov.:

AF XY:

0.000762

AC XY:

552

AN XY:

724326

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000226

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000253

Gnomad4 SAS exome

AF:

0.00853

Gnomad4 FIN exome

AF:

0.0000189

Gnomad4 NFE exome

AF:

0.00000991

Gnomad4 OTH exome

AF:

0.000532

GnomAD4 genome

AF:

0.000276

AC:

AN:

151916

Hom.:

Cov.:

AF XY:

0.000391

AC XY:

AN XY:

74246

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00811

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000442

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Mar 26, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.88

CADD

Benign

3.9

DANN

Benign

0.58

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