Variant 11-78174339-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001029859.3(KCTD21):c.216G>C(p.Glu72Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000075 in 1,614,110 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. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00035 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000047 ( 0 hom. )

Consequence

KCTD21
NM_001029859.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.757

Variant links:

Genes affected

KCTD21 (HGNC:27452): (potassium channel tetramerization domain containing 21) Enables cullin family protein binding activity; histone deacetylase binding activity; and identical protein binding activity. Involved in negative regulation of smoothened signaling pathway and ubiquitin-dependent protein catabolic process. [provided by Alliance of Genome Resources, Apr 2022]

KCTD21 links:

KCTD21-AS1 (HGNC:):

KCTD21-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.014735192).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KCTD21	NM_001029859.3 linkuse as main transcript	c.216G>C	p.Glu72Asp	missense_variant	2/2	ENST00000340067.4	NP_001025030.1	Q4G0X4
KCTD21	XM_047426803.1 linkuse as main transcript	c.324G>C	p.Glu108Asp	missense_variant	3/3		XP_047282759.1
KCTD21	XM_006718517.3 linkuse as main transcript	c.216G>C	p.Glu72Asp	missense_variant	3/3		XP_006718580.1	Q4G0X4
KCTD21	XM_006718518.4 linkuse as main transcript	c.216G>C	p.Glu72Asp	missense_variant	2/2		XP_006718581.1	Q4G0X4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KCTD21	ENST00000340067.4 linkuse as main transcript	c.216G>C	p.Glu72Asp	missense_variant	2/2	1	NM_001029859.3	ENSP00000339340.3		Q4G0X4

Frequencies

GnomAD3 genomes

AF:

0.000348

AC:

AN:

152130

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00126

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.00

GnomAD3 exomes

AF:

0.0000875

AC:

AN:

251366

Hom.:

AF XY:

0.0000663

AC XY:

AN XY:

135846

show subpopulations

Gnomad AFR exome

AF:

0.00129

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:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000465

AC:

AN:

1461862

Hom.:

Cov.:

AF XY:

0.0000413

AC XY:

AN XY:

727226

show subpopulations

Gnomad4 AFR exome

AF:

0.00164

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00000180

Gnomad4 OTH exome

AF:

0.000149

GnomAD4 genome

AF:

0.000348

AC:

AN:

152248

Hom.:

Cov.:

AF XY:

0.000403

AC XY:

AN XY:

74428

show subpopulations

Gnomad4 AFR

AF:

0.00125

Gnomad4 AMR

AF:

0.0000654

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:

0.00

Alfa

AF:

0.0000755

Hom.:

Bravo

AF:

0.000446

ESP6500AA

AF:

0.00159

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000123

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 16, 2024

The c.216G>C (p.E72D) alteration is located in exon 2 (coding exon 1) of the KCTD21 gene. This alteration results from a G to C substitution at nucleotide position 216, causing the glutamic acid (E) at amino acid position 72 to be replaced by an aspartic acid (D). 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

0.071

BayesDel_addAF

Benign

-0.57

BayesDel_noAF

Benign

-0.64

CADD

Benign

DANN

Benign

0.75

DEOGEN2

Benign

0.22

T;T;.;T

Eigen

Benign

-0.70

Eigen_PC

Benign

-0.53

FATHMM_MKL

Benign

0.26

LIST_S2

Benign

0.71

T;T;T;T

M_CAP

Benign

0.0051

MetaRNN

Benign

0.015

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.55

N;.;.;.

PrimateAI

Uncertain

0.60

PROVEAN

Benign

-1.3

N;N;N;N

REVEL

Benign

0.040

Sift

Benign

0.62

T;T;T;T

Sift4G

Benign

0.54

T;.;.;.

Polyphen

0.085

B;.;.;.

Vest4

0.058

MutPred

0.30

Loss of disorder (P = 0.1973);Loss of disorder (P = 0.1973);Loss of disorder (P = 0.1973);Loss of disorder (P = 0.1973);

MVP

0.33

MPC

0.43

ClinPred

0.028

GERP RS

3.0

Varity_R

0.15

gMVP

0.45

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