Genetic Variant NM_004977.3:c.2170+10C>G (chr19-50320583-G-C) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_004977.3(KCNC3):c.2170+10C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,609,252 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000020 ( 1 hom. )

Consequence

KCNC3
NM_004977.3 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -2.11

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 -8 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.94).

BS2

High AC in GnomAdExome4 at 29 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	Exon rank	MANE	Protein	UniProt
KCNC3	NM_004977.3 link	c.2170+10C>G	intron_variant	Intron 3 of 4	ENST00000477616.2	NP_004968.2	Q14003
KCNC3	NM_001372305.1 link	c.1942+10C>G	intron_variant	Intron 3 of 4		NP_001359234.1
KCNC3	NR_110912.2 link	n.260+10C>G	intron_variant	Intron 2 of 3

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
KCNC3	ENST00000477616.2 link	c.2170+10C>G	intron_variant	Intron 3 of 4	1	NM_004977.3	ENSP00000434241.1	Q14003
KCNC3	ENST00000670667.1 link	c.2170+10C>G	intron_variant	Intron 3 of 3			ENSP00000499301.1	A0A590UJ62
KCNC3	ENST00000376959.6 link	c.2170+10C>G	intron_variant	Intron 3 of 4	5		ENSP00000366158.2	E7ETH1
KCNC3	ENST00000474951.1 link	c.118+10C>G	intron_variant	Intron 2 of 3	2		ENSP00000432438.1	E9PQY4

Frequencies

GnomAD3 genomes

AF:

0.00000659

AC:

AN:

151798

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:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000494

AC:

AN:

242956

Hom.:

AF XY:

0.0000303

AC XY:

AN XY:

131880

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.000196

Gnomad NFE exome

AF:

0.0000642

Gnomad OTH exome

AF:

0.000169

GnomAD4 exome

AF:

0.0000199

AC:

AN:

1457454

Hom.:

Cov.:

AF XY:

0.0000221

AC XY:

AN XY:

724846

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:

0.000245

Gnomad4 NFE exome

AF:

0.0000126

Gnomad4 OTH exome

AF:

0.0000333

GnomAD4 genome

AF:

0.00000659

AC:

AN:

151798

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74142

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:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.94

CADD

Benign

9.2

DANN

Benign

0.47

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.16

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over