chr17-41757649-G-A

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP4

The NM_002230.4(JUP):c.1909C>T(p.Arg637Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000725 in 1,613,638 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). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R637H) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000074 ( 0 hom. )

Consequence

JUP
NM_002230.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:6B:1

Conservation

PhyloP100: 1.61

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 Likely_benign. Variant got -1 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.31847534).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
JUP	NM_002230.4 link	c.1909C>T	p.Arg637Cys	missense_variant	Exon 11 of 14	ENST00000393931.8	NP_002221.1	P14923A0A0S2Z487

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
JUP	ENST00000393931.8 link	c.1909C>T	p.Arg637Cys	missense_variant	Exon 11 of 14	1	NM_002230.4	ENSP00000377508.3	P14923
JUP	ENST00000310706.9 link	c.1909C>T	p.Arg637Cys	missense_variant	Exon 11 of 15	1		ENSP00000311113.5	P14923
JUP	ENST00000393930.5 link	c.1909C>T	p.Arg637Cys	missense_variant	Exon 11 of 15	5		ENSP00000377507.1	P14923

Frequencies

GnomAD3 genomes

AF:

0.0000591

AC:

AN:

152178

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

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:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000403

AC:

AN:

248158

Hom.:

AF XY:

0.0000372

AC XY:

AN XY:

134474

show subpopulations

Gnomad AFR exome

AF:

0.000188

Gnomad AMR exome

AF:

0.0000582

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000548

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000358

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000739

AC:

108

AN:

1461342

Hom.:

Cov.:

AF XY:

0.0000729

AC XY:

AN XY:

726942

show subpopulations

Gnomad4 AFR exome

AF:

0.000120

Gnomad4 AMR exome

AF:

0.0000672

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.0000464

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000836

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000591

AC:

AN:

152296

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74466

show subpopulations

Gnomad4 AFR

AF:

0.000120

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:

0.0000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000988

Hom.:

Bravo

AF:

0.0000831

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:6Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:3

Uncertain significance, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, University Medical Center Utrecht	-	- -
Uncertain significance, no assertion criteria provided	clinical testing	Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen	-	- -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Feb 05, 2020	Has not been previously published as pathogenic or benign to our knowledge; Identified in conjunction with additional variants in individuals referred for genetic testing at GeneDx; segregation data are limited at this time; Reported in ClinVar as a variant of uncertain significance (ClinVar Variant ID# 179915; Landrum et al., 2016); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function -

Naxos disease;C1969081:Arrhythmogenic right ventricular dysplasia 12

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 08, 2025	This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 637 of the JUP protein (p.Arg637Cys). This variant is present in population databases (rs531732438, gnomAD 0.02%). This missense change has been observed in individual(s) with clinical features of JUP-related conditions (PMID: 33500567). ClinVar contains an entry for this variant (Variation ID: 179915). 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. -
Uncertain significance, criteria provided, single submitter	clinical testing	Fulgent Genetics, Fulgent Genetics	Jul 25, 2021	- -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Aug 08, 2014

The Arg637Cys variant in JUP has not been previously reported in individuals wit h cardiomyopathy. Data from large population studies is insufficient to assess t he frequency of this variant. Computational prediction tools and conservation an alysis suggest that the Arg637Cys variant may not impact the protein, though thi s information is not predictive enough to rule out pathogenicity. In summary, th e clinical significance of the Arg637Cys variant is uncertain. -

Cardiovascular phenotype

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 27, 2023

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 v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.24

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.25

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.80

D;D;D

Eigen

Benign

-0.21

Eigen_PC

Benign

-0.16

FATHMM_MKL

Benign

0.74

LIST_S2

Pathogenic

0.99

.;.;D

M_CAP

Benign

0.023

MetaRNN

Benign

0.32

T;T;T

MetaSVM

Benign

-0.90

MutationAssessor

Uncertain

2.4

M;M;M

PrimateAI

Benign

0.35

PROVEAN

Pathogenic

-5.1

D;D;D

REVEL

Benign

0.20

Sift

Uncertain

0.011

D;D;D

Sift4G

Uncertain

0.021

D;D;D

Polyphen

0.38

B;B;B

Vest4

0.60

MVP

0.79

MPC

0.66

ClinPred

0.22

GERP RS

2.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.21

gMVP

0.43

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