11-17736074-G-A

Variant summary

Our verdict is Benign. Variant got -18 ACMG points: 0P and 18B. BP4_ModerateBP6_Very_StrongBA1

The NM_001112741.2(KCNC1):c.72G>A(p.Ser24=) variant causes a synonymous change. The variant allele was found at a frequency of 0.00541 in 1,601,310 control chromosomes in the GnomAD database, including 408 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.029 ( 215 hom., cov: 32)

Exomes 𝑓: 0.0030 ( 193 hom. )

Consequence

KCNC1
NM_001112741.2 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 3.90

Variant links:

Genes affected

KCNC1 (HGNC:6233): (potassium voltage-gated channel subfamily C member 1) This gene encodes a member of a family of integral membrane proteins that mediate the voltage-dependent potassium ion permeability of excitable membranes. Alternative splicing is thought to result in two transcript variants encoding isoforms that differ at their C-termini. These isoforms have had conflicting names in the literature: the longer isoform has been called both "b" and "alpha", while the shorter isoform has been called both "a" and "beta" (PMIDs 1432046, 12091563). [provided by RefSeq, Oct 2014]

KCNC1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -18 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.43).

BP6

Variant 11-17736074-G-A is Benign according to our data. Variant chr11-17736074-G-A is described in ClinVar as [Benign]. Clinvar id is 447617.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0962 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
KCNC1	NM_001112741.2 linkuse as main transcript	c.72G>A	p.Ser24=	synonymous_variant	1/4	ENST00000265969.8
KCNC1	NM_004976.4 linkuse as main transcript	c.72G>A	p.Ser24=	synonymous_variant	1/2
KCNC1	XM_047426916.1 linkuse as main transcript	c.72G>A	p.Ser24=	synonymous_variant	1/4
KCNC1	XR_930866.3 linkuse as main transcript	n.1294G>A		non_coding_transcript_exon_variant	1/3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KCNC1	ENST00000265969.8 linkuse as main transcript	c.72G>A	p.Ser24=	synonymous_variant	1/4	5	NM_001112741.2	P1	P48547-2

Frequencies

GnomAD3 genomes

AF:

0.0286

AC:

4345

AN:

152158

Hom.:

216

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0989

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0103

Gnomad ASJ

AF:

0.00260

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000413

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00637

Gnomad NFE

AF:

0.000500

Gnomad OTH

AF:

0.0201

GnomAD3 exomes

AF:

0.00779

AC:

1799

AN:

230924

Hom.:

AF XY:

0.00559

AC XY:

705

AN XY:

126008

show subpopulations

Gnomad AFR exome

AF:

0.108

Gnomad AMR exome

AF:

0.00461

Gnomad ASJ exome

AF:

0.00290

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000174

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000352

Gnomad OTH exome

AF:

0.00298

GnomAD4 exome

AF:

0.00298

AC:

4313

AN:

1449034

Hom.:

193

Cov.:

AF XY:

0.00252

AC XY:

1813

AN XY:

719758

show subpopulations

Gnomad4 AFR exome

AF:

0.103

Gnomad4 AMR exome

AF:

0.00518

Gnomad4 ASJ exome

AF:

0.00277

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000213

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000171

Gnomad4 OTH exome

AF:

0.00602

GnomAD4 genome

AF:

0.0286

AC:

4348

AN:

152276

Hom.:

215

Cov.:

AF XY:

0.0276

AC XY:

2056

AN XY:

74462

show subpopulations

Gnomad4 AFR

AF:

0.0987

Gnomad4 AMR

AF:

0.0103

Gnomad4 ASJ

AF:

0.00260

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000500

Gnomad4 OTH

AF:

0.0199

Alfa

AF:

0.00870

Hom.:

Bravo

AF:

0.0326

Asia WGS

AF:

0.00491

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

Athena Diagnostics

Jun 23, 2017

- -

Inborn genetic diseases

Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 08, 2016

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Progressive myoclonic epilepsy type 7

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Feb 01, 2024

- -

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Jul 31, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.43

Cadd

Benign

Dann

Uncertain

0.98

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