Variant 2-158533221-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_003628.6(PKP4):c.37G>A(p.Gly13Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000479 in 1,461,418 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

PKP4
NM_003628.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.78

Variant links:

Genes affected

PKP4 (HGNC:9026): (plakophilin 4) Armadillo-like proteins are characterized by a series of armadillo repeats, first defined in the Drosophila 'armadillo' gene product, that are typically 42 to 45 amino acids in length. These proteins can be divided into subfamilies based on their number of repeats, their overall sequence similarity, and the dispersion of the repeats throughout their sequences. Members of the p120(ctn)/plakophilin subfamily of Armadillo-like proteins, including CTNND1, CTNND2, PKP1, PKP2, PKP4, and ARVCF. PKP4 may be a component of desmosomal plaque and other adhesion plaques and is thought to be involved in regulating junctional plaque organization and cadherin function. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2015]

PKP4 links:

PKP4 (HGNC:):

PKP4 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.28191942).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PKP4	NM_003628.6 linkuse as main transcript	c.37G>A	p.Gly13Arg	missense_variant	2/22	ENST00000389759.8	NP_003619.2	Q99569-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PKP4	ENST00000389759.8 linkuse as main transcript	c.37G>A	p.Gly13Arg	missense_variant	2/22	1	NM_003628.6	ENSP00000374409.3		Q99569-1

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

152116

Hom.:

Cov.:

FAILED QC

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:

0.00

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1461418

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

726982

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:

0.00000630

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Data not reliable, filtered out with message: AC0;AS_VQSR

AF:

0.00

AC:

AN:

152116

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74310

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:

0.00

Bravo

AF:

0.0000113

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

Oct 20, 2023

The c.37G>A (p.G13R) alteration is located in exon 2 (coding exon 1) of the PKP4 gene. This alteration results from a G to A substitution at nucleotide position 37, causing the glycine (G) at amino acid position 13 to be replaced by an arginine (R). 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

0.15

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Uncertain

-0.040

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.060

T;.;T;.

Eigen

Uncertain

0.49

Eigen_PC

Uncertain

0.61

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.89

D;D;D;D

M_CAP

Benign

0.015

MetaRNN

Benign

0.28

T;T;T;T

MetaSVM

Benign

-0.45

MutationAssessor

Benign

1.6

.;L;L;.

PrimateAI

Uncertain

0.61

PROVEAN

Benign

-1.2

.;N;N;.

REVEL

Uncertain

0.35

Sift

Uncertain

0.0090

.;D;D;.

Sift4G

Benign

0.19

T;T;T;D

Polyphen

0.93, 0.93

.;P;P;.

Vest4

0.47

MutPred

0.080

Gain of helix (P = 0.062);Gain of helix (P = 0.062);Gain of helix (P = 0.062);Gain of helix (P = 0.062);

MVP

0.83

MPC

0.71

ClinPred

0.97

GERP RS

5.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.18

gMVP

0.38

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