17-41769629-C-T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP3

The NM_002230.4(JUP):c.257G>A(p.Arg86Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000361 in 1,606,120 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. R86W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000035 ( 0 hom. )

Consequence

JUP
NM_002230.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: 7.89

Publications

3 publications found

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 Gene-Disease associations (from GenCC):

arrhythmogenic right ventricular dysplasia 12
Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
inherited epidermolysis bullosa
Inheritance: AR Classification: STRONG Submitted by: Genomics England PanelApp
Naxos disease
Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Genomics England PanelApp, G2P, Orphanet, PanelApp Australia, Labcorp Genetics (formerly Invitae)
lethal acantholytic epidermolysis bullosa
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

JUP links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.81

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002230.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
JUP	NM_002230.4	MANE Select	c.257G>A	p.Arg86Gln	missense	Exon 3 of 14	NP_002221.1
JUP	NM_001352773.2		c.257G>A	p.Arg86Gln	missense	Exon 3 of 14	NP_001339702.1
JUP	NM_001352774.2		c.257G>A	p.Arg86Gln	missense	Exon 3 of 15	NP_001339703.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
JUP	ENST00000393931.8	TSL:1 MANE Select	c.257G>A	p.Arg86Gln	missense	Exon 3 of 14	ENSP00000377508.3
JUP	ENST00000310706.9	TSL:1	c.257G>A	p.Arg86Gln	missense	Exon 3 of 15	ENSP00000311113.5
JUP	ENST00000393930.5	TSL:5	c.257G>A	p.Arg86Gln	missense	Exon 3 of 15	ENSP00000377507.1

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152224

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.000282

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000257

AC:

AN:

233120

AF XY:

0.0000318

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000507

Gnomad NFE exome

AF:

0.0000190

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000351

AC:

AN:

1453896

Hom.:

Cov.:

AF XY:

0.0000346

AC XY:

AN XY:

722394

show subpopulations

African (AFR)

AF:

0.0000598

AC:

AN:

33456

American (AMR)

AF:

0.00

AC:

AN:

43072

Ashkenazi Jewish (ASJ)

AF:

0.0000777

AC:

AN:

25752

East Asian (EAS)

AF:

0.00

AC:

AN:

39430

South Asian (SAS)

AF:

0.0000829

AC:

AN:

84398

European-Finnish (FIN)

AF:

0.000323

AC:

AN:

52712

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5758

European-Non Finnish (NFE)

AF:

0.0000153

AC:

AN:

1109216

Other (OTH)

AF:

0.0000998

AC:

AN:

60102

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

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:

0.0000460

AC:

AN:

152224

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74362

show subpopulations

African (AFR)

AF:

0.0000482

AC:

AN:

41452

American (AMR)

AF:

0.00

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.000207

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.000282

AC:

AN:

10630

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68040

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

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:

0.0000282

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:4Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:3

Dec 07, 2022

Clinical Genetics Laboratory, Skane University Hospital Lund

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Breakthrough Genomics, Breakthrough Genomics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:not provided

Dec 05, 2024

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; This variant is associated with the following publications: (PMID: 38254962)

Naxos disease;C1969081:Arrhythmogenic right ventricular dysplasia 12

Uncertain:1

Oct 22, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 86 of the JUP protein (p.Arg86Gln). This variant is present in population databases (rs782341732, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with JUP-related conditions. ClinVar contains an entry for this variant (Variation ID: 392175). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant¬¨‚Ä†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.

Cardiovascular phenotype

Benign:1

Aug 04, 2025

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely 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 v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Uncertain

0.089

BayesDel_noAF

Uncertain

0.11

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.77

Eigen

Pathogenic

0.86

Eigen_PC

Pathogenic

0.84

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

1.0

M_CAP

Benign

0.073

MetaRNN

Pathogenic

0.80

MetaSVM

Uncertain

-0.13

MutationAssessor

Uncertain

2.7

PhyloP100

7.9

PrimateAI

Uncertain

0.68

PROVEAN

Uncertain

-2.7

REVEL

Uncertain

0.33

Sift

Uncertain

0.022

Sift4G

Uncertain

0.045

Polyphen

1.0

Vest4

0.85

MutPred

0.66

Loss of methylation at R86 (P = 0.0258)

MVP

0.93

MPC

0.10

ClinPred

0.93

GERP RS

5.8

Varity_R

0.39

gMVP

0.89

Mutation Taster

=24/76

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over