Variant chr1-215579093-C-T details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_016121.5(KCTD3):c.491C>T(p.Thr164Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000033 in 1,607,018 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

KCTD3
NM_016121.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.27

Variant links:

Genes affected

KCTD3 (HGNC:21305): (potassium channel tetramerization domain containing 3) This gene encodes a member of the potassium channel tetramerization-domain containing (KCTD) protein family. Members of this protein family regulate the biophysical characteristics of ion channels. In mouse, this protein interacts with hyperpolarization-activated cyclic nucleotide-gated channel complex 3 and enhances its cell surface expression and current density. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]

KCTD3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.024865419).

BS2

High AC in GnomAd4 at 33 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KCTD3	NM_016121.5 linkuse as main transcript	c.491C>T	p.Thr164Ile	missense_variant	7/18	ENST00000259154.9	NP_057205.2	Q9Y597-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KCTD3	ENST00000259154.9 linkuse as main transcript	c.491C>T	p.Thr164Ile	missense_variant	7/18	1	NM_016121.5	ENSP00000259154.2		Q9Y597-1
KCTD3	ENST00000448333.1 linkuse as main transcript	c.407C>T	p.Thr136Ile	missense_variant	6/8	2		ENSP00000396726.1		H0Y566

Frequencies

GnomAD3 genomes

AF:

0.000210

AC:

AN:

152158

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000490

AC:

AN:

244910

Hom.:

AF XY:

0.0000151

AC XY:

AN XY:

132468

show subpopulations

Gnomad AFR exome

AF:

0.000506

Gnomad AMR exome

AF:

0.0000603

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000683

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000137

AC:

AN:

1454744

Hom.:

Cov.:

AF XY:

0.00000967

AC XY:

AN XY:

723652

show subpopulations

Gnomad4 AFR exome

AF:

0.000396

Gnomad4 AMR exome

AF:

0.0000696

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000236

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000333

GnomAD4 genome

AF:

0.000217

AC:

AN:

152274

Hom.:

Cov.:

AF XY:

0.000269

AC XY:

AN XY:

74464

show subpopulations

Gnomad4 AFR

AF:

0.000746

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000389

Hom.:

Bravo

AF:

0.000200

ESP6500AA

AF:

0.00113

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000659

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 01, 2024

The c.491C>T (p.T164I) alteration is located in exon 7 (coding exon 7) of the KCTD3 gene. This alteration results from a C to T substitution at nucleotide position 491, causing the threonine (T) at amino acid position 164 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.069

BayesDel_addAF

Benign

-0.41

BayesDel_noAF

Benign

-0.44

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.025

Eigen

Benign

-0.51

Eigen_PC

Benign

-0.36

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.58

M_CAP

Benign

0.0044

MetaRNN

Benign

0.025

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.34

PrimateAI

Benign

0.31

PROVEAN

Benign

-0.80

REVEL

Benign

0.040

Sift

Benign

0.27

Sift4G

Benign

0.40

Polyphen

0.0

Vest4

0.080

MVP

0.21

MPC

0.85

ClinPred

0.019

GERP RS

4.8

Varity_R

0.041

gMVP

0.30

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