NM_002230.4:c.2104C>T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4

The NM_002230.4(JUP):c.2104C>T(p.Arg702Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000112 in 1,609,990 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R702H) has been classified as Uncertain significance.

Frequency

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

Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

JUP
NM_002230.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 6.30

Publications

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

BP4

Computational evidence support a benign effect (MetaRNN=0.37359047).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
JUP	NM_002230.4 link	c.2104C>T	p.Arg702Cys	missense_variant	Exon 14 of 14	ENST00000393931.8	NP_002221.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein
JUP	ENST00000393931.8 link	c.2104C>T	p.Arg702Cys	missense_variant	Exon 14 of 14	1	NM_002230.4	ENSP00000377508.3
JUP	ENST00000310706.9 link	c.2104C>T	p.Arg702Cys	missense_variant	Exon 14 of 15	1		ENSP00000311113.5
JUP	ENST00000393930.5 link	c.2104C>T	p.Arg702Cys	missense_variant	Exon 14 of 15	5		ENSP00000377507.1

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152062

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.000471

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000203

AC:

AN:

246808

AF XY:

0.0000150

show subpopulations

Gnomad AFR exome

AF:

0.0000617

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000193

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000755

AC:

AN:

1457808

Hom.:

Cov.:

AF XY:

0.00000552

AC XY:

AN XY:

724568

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33416

American (AMR)

AF:

0.00

AC:

AN:

44488

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26020

East Asian (EAS)

AF:

0.00

AC:

AN:

39582

South Asian (SAS)

AF:

0.00

AC:

AN:

85994

European-Finnish (FIN)

AF:

0.000114

AC:

AN:

52754

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5754

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1109582

Other (OTH)

AF:

0.0000166

AC:

AN:

60218

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

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152182

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74378

show subpopulations

African (AFR)

AF:

0.0000482

AC:

AN:

41520

American (AMR)

AF:

0.00

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5148

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.000471

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67998

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.489

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:

0.00

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Cardiovascular phenotype

Uncertain:1

Nov 17, 2020

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.R702C variant (also known as c.2104C>T), located in coding exon 13 of the JUP gene, results from a C to T substitution at nucleotide position 2104. The arginine at codon 702 is replaced by cysteine, an amino acid with highly dissimilar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Naxos disease;C1969081:Arrhythmogenic right ventricular dysplasia 12

Uncertain:1

Feb 16, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). 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. This variant has not been reported in the literature in individuals with JUP-related disease. This variant is present in population databases (rs545547083, ExAC 0.03%). This sequence change replaces arginine with cysteine at codon 702 of the JUP protein (p.Arg702Cys). The arginine residue is moderately conserved and there is a large physicochemical difference between arginine and cysteine. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.32

BayesDel_addAF

Uncertain

0.012

BayesDel_noAF

Uncertain

-0.040

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.41

T;T;T

Eigen

Uncertain

0.48

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.87

.;.;D

M_CAP

Benign

0.034

MetaRNN

Benign

0.37

T;T;T

MetaSVM

Benign

-0.69

MutationAssessor

Benign

1.8

L;L;L

PhyloP100

6.3

PrimateAI

Uncertain

0.56

PROVEAN

Benign

-1.6

N;N;N

REVEL

Benign

0.23

Sift

Uncertain

0.012

D;D;D

Sift4G

Uncertain

0.057

T;T;T

Polyphen

0.98

D;D;D

Vest4

0.77

MutPred

0.36

Gain of helix (P = 0.0225);Gain of helix (P = 0.0225);Gain of helix (P = 0.0225);

MVP

0.84

MPC

1.1

ClinPred

0.80

GERP RS

4.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.18

gMVP

0.54

Mutation Taster

=88/12

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.090

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over