chr17-41755803-C-T

Position:

chr17-41755803-C-T

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS1

The NM_002230.4(JUP):c.2179G>A(p.Asp727Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000149 in 1,612,854 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

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

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

JUP
NM_002230.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 4.96

Variant links:

Genes affected

JUP (HGNC:6207): (junction plakoglobin) This gene encodes a major cytoplasmic protein which is the only known constituent common to submembranous plaques of both desmosomes and intermediate junctions. This protein forms distinct complexes with cadherins and desmosomal cadherins and is a member of the catenin family since it contains a distinct repeating amino acid motif called the armadillo repeat. Mutation in this gene has been associated with Naxos disease. Alternative splicing occurs in this gene; however, not all transcripts have been fully described. [provided by RefSeq, Jul 2008]

JUP links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.20285252).

BP6

Variant 17-41755803-C-T is Benign according to our data. Variant chr17-41755803-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 518649.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1, Benign=1}.

BS1

Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.0000157 (23/1460760) while in subpopulation AMR AF= 0.000336 (15/44668). AF 95% confidence interval is 0.000207. There are 0 homozygotes in gnomad4_exome. There are 9 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
JUP	NM_002230.4 linkuse as main transcript	c.2179G>A	p.Asp727Asn	missense_variant	14/14	ENST00000393931.8	NP_002221.1	P14923A0A0S2Z487

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
JUP	ENST00000393931.8 linkuse as main transcript	c.2179G>A	p.Asp727Asn	missense_variant	14/14	1	NM_002230.4	ENSP00000377508.3	P14923
JUP	ENST00000310706.9 linkuse as main transcript	c.2179G>A	p.Asp727Asn	missense_variant	14/15	1		ENSP00000311113.5	P14923
JUP	ENST00000393930.5 linkuse as main transcript	c.2179G>A	p.Asp727Asn	missense_variant	14/15	5		ENSP00000377507.1	P14923

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152094

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000280

AC:

AN:

249860

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

135154

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000203

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000157

AC:

AN:

1460760

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

726542

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000336

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:

0.00000720

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152094

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74278

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

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:

0.0000329

Hom.:

Bravo

AF:

0.0000416

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Naxos disease;C1969081:Arrhythmogenic right ventricular dysplasia 12

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Nov 01, 2023

This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 727 of the JUP protein (p.Asp727Asn). This variant is present in population databases (no rsID available, gnomAD 0.02%). This missense change has been observed in individual(s) with hypertrophic cardiomyopathy (PMID: 25351510). ClinVar contains an entry for this variant (Variation ID: 518649). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant¬†is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Dec 29, 2020

Reported as a variant of uncertain significance by two other clinical laboratories in ClinVar but additional evidence is not available (ClinVar Variant ID# 518649; Landrum et al., 2016); In silico analysis supports that this missense variant does not alter protein structure/function; Identified in one individual with hypertrophic cardiomyopathy (HCM); however, detailed clinical information was not provided (Lopes et al., 2015); This variant is associated with the following publications: (PMID: 25351510) -

Cardiovascular phenotype

Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

May 03, 2024

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.26

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.42

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.26

T;T;T

Eigen

Benign

-0.028

Eigen_PC

Benign

0.12

FATHMM_MKL

Uncertain

0.85

LIST_S2

Benign

0.84

.;.;T

M_CAP

Benign

0.033

MetaRNN

Benign

0.20

T;T;T

MetaSVM

Benign

-0.84

MutationAssessor

Benign

1.6

L;L;L

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-0.54

N;N;N

REVEL

Benign

0.077

Sift

Uncertain

0.0060

D;D;D

Sift4G

Benign

0.20

T;T;T

Polyphen

0.012

B;B;B

Vest4

0.58

MVP

0.71

MPC

0.48

ClinPred

0.20

GERP RS

3.7

Varity_R

0.063

gMVP

0.52

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