dbSNP rs34658212: KCNS3:p.Ala382Glu (chr2-17932153-C-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_002252.5(KCNS3):c.1145C>A(p.Ala382Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,613,804 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

KCNS3
NM_002252.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.665

Variant links:

Genes affected

KCNS3 (HGNC:6302): (potassium voltage-gated channel modifier subfamily S member 3) Voltage-gated potassium channels form the largest and most diversified class of ion channels and are present in both excitable and nonexcitable cells. Their main functions are associated with the regulation of the resting membrane potential and the control of the shape and frequency of action potentials. The alpha subunits are of 2 types: those that are functional by themselves and those that are electrically silent but capable of modulating the activity of specific functional alpha subunits. The protein encoded by this gene is not functional by itself but can form heteromultimers with member 1 and with member 2 (and possibly other members) of the Shab-related subfamily of potassium voltage-gated channel proteins. This gene belongs to the S subfamily of the potassium channel family. Alternatively spliced transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Sep 2013]

KCNS3 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KCNS3	NM_002252.5 link	c.1145C>A	p.Ala382Glu	missense_variant	Exon 3 of 3	ENST00000304101.9	NP_002243.3	Q9BQ31
KCNS3	NM_001282428.2 link	c.1145C>A	p.Ala382Glu	missense_variant	Exon 3 of 3		NP_001269357.1	Q9BQ31
KCNS3	XM_011532825.2 link	c.1145C>A	p.Ala382Glu	missense_variant	Exon 4 of 4		XP_011531127.1	Q9BQ31
KCNS3	XM_047444255.1 link	c.1145C>A	p.Ala382Glu	missense_variant	Exon 3 of 3		XP_047300211.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
KCNS3	ENST00000304101.9 link	c.1145C>A	p.Ala382Glu	missense_variant	Exon 3 of 3	1	NM_002252.5	ENSP00000305824.4	Q9BQ31
KCNS3	ENST00000403915.5 link	c.1145C>A	p.Ala382Glu	missense_variant	Exon 3 of 3	1		ENSP00000385968.1	Q9BQ31
KCNS3	ENST00000465292.5 link	n.305+14282C>A		intron_variant	Intron 2 of 4	4

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151958

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:

0.00

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251224

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135762

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:

0.00

Gnomad NFE exome

AF:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461846

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727218

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:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.00000658

AC:

AN:

151958

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74216

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:

0.00

Gnomad4 OTH

AF:

0.000479

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.50

BayesDel_addAF

Uncertain

0.14

BayesDel_noAF

Uncertain

-0.030

CADD

Benign

DANN

Benign

0.86

DEOGEN2

Uncertain

0.65

D;D

Eigen

Benign

-0.70

Eigen_PC

Benign

-0.75

FATHMM_MKL

Benign

0.18

LIST_S2

Uncertain

0.94

.;D

M_CAP

Uncertain

0.28

MetaRNN

Uncertain

0.62

D;D

MetaSVM

Uncertain

0.74

MutationAssessor

Uncertain

2.4

M;M

PrimateAI

Benign

0.34

PROVEAN

Uncertain

-2.9

D;D

REVEL

Uncertain

0.48

Sift

Uncertain

0.025

D;D

Sift4G

Benign

0.073

T;T

Polyphen

0.17

B;B

Vest4

0.45

MutPred

0.69

Loss of ubiquitination at K384 (P = 0.0573);Loss of ubiquitination at K384 (P = 0.0573);

MVP

0.95

MPC

0.71

ClinPred

0.30

GERP RS

-0.094

Varity_R

0.23

gMVP

0.92

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over