8-98427998-T-C

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_020697.4(KCNS2):c.19T>C(p.Trp7Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000618 in 1,569,470 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000062 ( 0 hom. )

Consequence

KCNS2
NM_020697.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.29

Publications

0 publications found

Variant links:

Genes affected

KCNS2 (HGNC:6301): (potassium voltage-gated channel modifier subfamily S member 2) Predicted to enable voltage-gated potassium channel activity. Predicted to be involved in potassium ion transmembrane transport and regulation of delayed rectifier potassium channel activity. Predicted to be located in perinuclear region of cytoplasm and plasma membrane. Predicted to be part of voltage-gated potassium channel complex. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

KCNS2 links:

STK3 (HGNC:11406): (serine/threonine kinase 3) This gene encodes a serine/threonine protein kinase activated by proapoptotic molecules indicating the encoded protein functions as a growth suppressor. Cleavage of the protein product by caspase removes the inhibitory C-terminal portion. The N-terminal portion is transported to the nucleus where it homodimerizes to form the active kinase which promotes the condensation of chromatin during apoptosis. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2012]

STK3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.032164842).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020697.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KCNS2	NM_020697.4	MANE Select	c.19T>C	p.Trp7Arg	missense	Exon 2 of 2	NP_065748.1	Q9ULS6

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KCNS2	ENST00000287042.5	TSL:1 MANE Select	c.19T>C	p.Trp7Arg	missense	Exon 2 of 2	ENSP00000287042.4	Q9ULS6
KCNS2	ENST00000521839.1	TSL:5	c.19T>C	p.Trp7Arg	missense	Exon 2 of 2	ENSP00000430712.1	Q9ULS6
STK3	ENST00000517832.1	TSL:3	n.483+6129A>G		intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.0000592

AC:

AN:

152066

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:

0.000132

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000474

AC:

AN:

189826

AF XY:

0.0000587

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000987

Gnomad OTH exome

AF:

0.000199

GnomAD4 exome

AF:

0.0000621

AC:

AN:

1417284

Hom.:

Cov.:

AF XY:

0.0000600

AC XY:

AN XY:

700020

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32424

American (AMR)

AF:

0.00

AC:

AN:

38864

Ashkenazi Jewish (ASJ)

AF:

0.0000403

AC:

AN:

24830

East Asian (EAS)

AF:

0.00

AC:

AN:

37246

South Asian (SAS)

AF:

0.00

AC:

AN:

81148

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50732

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5668

European-Non Finnish (NFE)

AF:

0.0000763

AC:

AN:

1087874

Other (OTH)

AF:

0.0000684

AC:

AN:

58498

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000591

AC:

AN:

152186

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74400

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41554

American (AMR)

AF:

0.00

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5126

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000132

AC:

AN:

67994

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000130

Hom.:

Bravo

AF:

0.0000453

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000500

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.20

CADD

Benign

(source)

DANN

Benign

0.79

DEOGEN2

Benign

0.13

Eigen

Benign

-0.29

Eigen_PC

Benign

-0.088

FATHMM_MKL

Benign

0.37

LIST_S2

Benign

0.48

M_CAP

Benign

0.053

MetaRNN

Benign

0.032

MetaSVM

Uncertain

-0.11

MutationAssessor

Benign

-0.81

PhyloP100

1.3

PrimateAI

Uncertain

0.57

PROVEAN

Benign

0.10

REVEL

Benign

0.23

Sift

Benign

0.82

Sift4G

Benign

0.27

Polyphen

0.0

Vest4

0.064

MutPred

0.47

Gain of disorder (P = 0.0037)

MVP

0.33

MPC

1.0

ClinPred

0.051

GERP RS

4.2

PromoterAI

-0.010

Neutral

(source)

Varity_R

0.12

gMVP

0.71

Mutation Taster

=86/14

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over