rs570878629

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM1BP4_ModerateBS1_Supporting

The NM_002230.4(JUP):c.56C>T(p.Thr19Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000115 in 1,613,708 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T19A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

JUP
NM_002230.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:12B:1

Conservation

PhyloP100: 3.12

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 was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

PM1

In a mutagenesis_site Reduces glycosylation. (size 0) in uniprot entity PLAK_HUMAN

BP4

Computational evidence support a benign effect (MetaRNN=0.21289116).

BS1

Variant frequency is greater than expected in population amr. GnomAdExome4 allele frequency = 0.000119 (174/1461404) while in subpopulation AMR AF = 0.000246 (11/44700). AF 95% confidence interval is 0.000137. There are 0 homozygotes in GnomAdExome4. There are 93 alleles in the male GnomAdExome4 subpopulation. Median coverage is 31. This position FAILED quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
JUP	NM_002230.4 link	c.56C>T	p.Thr19Ile	missense_variant	Exon 2 of 14	ENST00000393931.8	NP_002221.1	P14923A0A0S2Z487

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
JUP	ENST00000393931.8 link	c.56C>T	p.Thr19Ile	missense_variant	Exon 2 of 14	1	NM_002230.4	ENSP00000377508.3		P14923

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.000132

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000128

AC:

AN:

249428

AF XY:

0.000163

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000319

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000186

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000119

AC:

174

AN:

1461404

Hom.:

Cov.:

AF XY:

0.000128

AC XY:

AN XY:

727012

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

AC:

AN:

33474

Gnomad4 AMR exome

AF:

0.000246

AC:

AN:

44700

Gnomad4 ASJ exome

AF:

0.00

AC:

AN:

26130

Gnomad4 EAS exome

AF:

0.00

AC:

AN:

39698

Gnomad4 SAS exome

AF:

0.00

AC:

AN:

86248

Gnomad4 FIN exome

AF:

0.00

AC:

AN:

53166

Gnomad4 NFE exome

AF:

0.000139

AC:

155

AN:

1111910

Gnomad4 Remaining exome

AF:

0.0000829

AC:

AN:

60312

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000722

AC:

AN:

152304

Hom.:

Cov.:

AF XY:

0.0000806

AC XY:

AN XY:

74478

show subpopulations

Gnomad4 AFR

AF:

0.00

AC:

AN:

Gnomad4 AMR

AF:

0.000131

AC:

0.000130702

AN:

0.000130702

Gnomad4 ASJ

AF:

0.00

AC:

AN:

Gnomad4 EAS

AF:

0.00

AC:

AN:

Gnomad4 SAS

AF:

0.00

AC:

AN:

Gnomad4 FIN

AF:

0.00

AC:

AN:

Gnomad4 NFE

AF:

0.000132

AC:

0.000132322

AN:

0.000132322

Gnomad4 OTH

AF:

0.00

AC:

AN:

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000532

Hom.:

Bravo

AF:

0.0000907

ExAC

AF:

0.000107

AC:

EpiCase

AF:

0.000273

EpiControl

AF:

0.000237

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:12Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:6

Breakthrough Genomics, Breakthrough Genomics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Clinical Genetics, Academic Medical Center

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Mar 08, 2022

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The JUP c.56C>T; p.Thr19Ile variant (rs570878629) is reported in the literature in several individuals affected with arrhythmogenic right ventricular cardiomyopathy or dilated cardiomyopathy (Bhonsale 2015, den Haan 2009, Garcia-Pavia 2011, Haggerty 2017, Sanchez 2016, Tan 2010). This variant is also reported in ClinVar (Variation ID: 179756), and is found in the general population with an overall allele frequency of 0.012% (33/280798 alleles) in the Genome Aggregation Database. The threonine at codon 19 is moderately conserved, and computational analyses are uncertain whether this variant is neutral or deleterious (REVEL: 0.204). However, given the lack of functional data, the significance of this variant is uncertain at this time. References: Bhonsale A et al. Impact of genotype on clinical course in arrhythmogenic right ventricular dysplasia/cardiomyopathy-associated mutation carriers. Eur Heart J. 2015 Apr 7;36(14):847-55. PMID: 25616645. den Haan AD et al. Comprehensive desmosome mutation analysis in north americans with arrhythmogenic right ventricular dysplasia/cardiomyopathy. Circ Cardiovasc Genet. 2009 Oct;2(5):428-35. PMID: 20031617. Garcia-Pavia P et al. Desmosomal protein gene mutations in patients with idiopathic dilated cardiomyopathy undergoing cardiac transplantation: a clinicopathological study. Heart. 2011 Nov;97(21):1744-52. PMID: 21859740. Haggerty CM et al. Electronic health record phenotype in subjects with genetic variants associated with arrhythmogenic right ventricular cardiomyopathy: a study of 30,716 subjects with exome sequencing. Genet Med. 2017 Nov;19(11):1245-1252. PMID: 28471438. Sanchez O et al. Natural and Undetermined Sudden Death: Value of Post-Mortem Genetic Investigation. PLoS One. 2016 Dec 8;11(12):e0167358. PMID: 27930701. Tan BY et al. Shared desmosome gene findings in early and late onset arrhythmogenic right ventricular dysplasia/cardiomyopathy. J Cardiovasc Transl Res. 2010 Dec;3(6):663-73. PMID: 20857253. -

Jun 01, 2025

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Reported in association with dilated cardiomyopathy (DCM) and arrhythmogenic right ventricular cardiomyopathy (ARVC) in published literature (PMID: 35581137, 34026867, 25820315, 21859740, 27930701, 20031617, 20857253, 23671136; Sabater-Molina et al. (2013) Cardiogenetics 3 (e5) 28-30; te Riele et al. (2015) J Am Coll Cardiol EP 1 (6):551560); This variant is associated with the following publications: (PMID: 27930701, 20031617, 20857253, 23671136, 26187847, 27037756, 28471438, 21859740, 31402444, 35581137, 34026867, 25820315) -

Naxos disease;C1969081:Arrhythmogenic right ventricular dysplasia 12

Uncertain:2

Dec 26, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces threonine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 19 of the JUP protein (p.Thr19Ile). This variant is present in population databases (rs570878629, gnomAD 0.03%). This missense change has been observed in individual(s) with JUP-related conditions (PMID: 20031617, 21859740, 25616645, 27930701). ClinVar contains an entry for this variant (Variation ID: 179756). 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. -

Aug 13, 2021

Fulgent Genetics, Fulgent Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Cardiovascular phenotype

Uncertain:1Benign:1

Sep 02, 2022

Ambry Genetics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. -

Apr 09, 2025

Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Uncertain:1

Jan 20, 2016

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant classified as Uncertain Significance - Favor Pathogenic. The p.Thr19Ile variant in JUP has been reported in 1 adult with DCM as well as 3 relatives who had arrhythmia (2) or low ejection fraction (1)(Garcia-Pavia 2011) and 1 individ ual with ARVC (den Haan 2009). This variant has been identified in 11/63034 Euro pean and 2/10852 Latino chromosomes by the Exome Aggregation Consortium (ExAC, h ttp://exac.broadinstitute.org). Computational prediction tools and conservation analysis suggest that the p.Thr19Ile variant may impact the protein, though this information is not predictive enough to determine pathogenicity. In summary, wh ile there is some suspicion for a pathogenic role, the clinical significance of this variant is uncertain. -

Naxos disease

Uncertain:1

Apr 27, 2017

Illumina Laboratory Services, Illumina

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

Primary dilated cardiomyopathy

Uncertain:1

Feb 26, 2021

Loeys Lab, Universiteit Antwerpen

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change results in a missense variant in the JUP gene ( p.cThr19Ile)). This variant is present in population databases with a prevalence of 33/280798in GnomAD (BS1). This variant has been reported in the literature. It was found in different individuals with ARVC and co-seggregated with disease in a family with DCM and arrhythmia (Garcia-Pavia 2011; den Haan 2009; PP1). The variant has been identified in a case of SCD with DCM and additional cardiac variants (Haggerty CM et al, 2017; BP5). No functional data are available. Prediction programs show conflicting results ( Align GVGD C0; Polyphen-2-HumDiv possibly damaging; Polyphen-2-HumVar possivley damaging; SIFT: tolerated; MutationTaster: disease causing). In conclusion this variant was classified as a variant of unknown significance according to ACMG-guidelines (criteria for benign and pathogenic are contradictory: BS1, PP1; BP5). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.62

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.34

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.71

D;D;D;.;T;.;T;T;.

Eigen

Uncertain

0.30

Eigen_PC

Uncertain

0.32

FATHMM_MKL

Uncertain

0.87

LIST_S2

Benign

0.55

.;.;T;T;T;T;T;T;T

M_CAP

Benign

0.031

MetaRNN

Benign

0.21

T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.81

MutationAssessor

Uncertain

2.3

M;M;M;.;.;.;.;.;.

PrimateAI

Uncertain

0.70

PROVEAN

Uncertain

-2.7

D;D;D;D;D;D;D;.;D

REVEL

Benign

0.20

Sift

Uncertain

0.0070

D;D;D;D;D;D;D;.;D

Sift4G

Uncertain

0.027

D;D;D;.;.;.;.;D;.

Polyphen

0.90

P;P;P;.;.;.;.;.;.

Vest4

0.70

MVP

0.72

MPC

0.12

ClinPred

0.27

GERP RS

4.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.093

gMVP

0.67

Mutation Taster

=74/26

polymorphism

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