rs782770278

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_002230.4(JUP):​c.329C>T​(p.Ala110Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000398 in 1,607,964 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict 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. A110S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000041 ( 0 hom. )

Consequence

JUP
NM_002230.4 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 0.447

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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.12161249).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
JUPNM_002230.4 linkc.329C>T p.Ala110Val missense_variant Exon 3 of 14 ENST00000393931.8 NP_002221.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
JUPENST00000393931.8 linkc.329C>T p.Ala110Val missense_variant Exon 3 of 14 1 NM_002230.4 ENSP00000377508.3

Frequencies

GnomAD3 genomes
AF:
0.0000328
AC:
5
AN:
152238
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000213
AC:
5
AN:
234826
AF XY:
0.0000235
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:
0.00
Gnomad NFE exome
AF:
0.0000376
Gnomad OTH exome
AF:
0.000174
GnomAD4 exome
AF:
0.0000405
AC:
59
AN:
1455726
Hom.:
0
Cov.:
34
AF XY:
0.0000442
AC XY:
32
AN XY:
723818
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33440
American (AMR)
AF:
0.00
AC:
0
AN:
43726
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25934
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39416
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85156
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52098
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5756
European-Non Finnish (NFE)
AF:
0.0000522
AC:
58
AN:
1110086
Other (OTH)
AF:
0.00
AC:
0
AN:
60114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
5
10
16
21
26
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000328
AC:
5
AN:
152238
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74372
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41458
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
68042
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.405
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000868
Hom.:
0
ExAC
AF:
0.00000825
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Cardiomyopathy Uncertain:1
Sep 23, 2021
CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Cardiovascular phenotype Uncertain:1
Oct 06, 2015
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.A110V variant (also known as c.329C>T), located in coding exon 2 of the JUP gene, results from a C to T substitution at nucleotide position 329. The alanine at codon 110 is replaced by valine, an amino acid with similar properties. This variant was not reported in population based cohorts in the following databases: Database of Single Nucleotide Polymorphisms (dbSNP), NHLBI Exome Sequencing Project (ESP), and 1000 Genomes Project. In the ESP, this variant was not observed in 6500 samples (13000 alleles) with coverage at this position. This amino acid position is poorly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this variant remains unclear. -

Naxos disease;C1969081:Arrhythmogenic right ventricular dysplasia 12 Uncertain:1
May 24, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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. 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. ClinVar contains an entry for this variant (Variation ID: 264370). This variant has not been reported in the literature in individuals affected with JUP-related conditions. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 110 of the JUP protein (p.Ala110Val). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.088
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.31
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.36
T;T;T;.;T;.;T
Eigen
Benign
-0.17
Eigen_PC
Benign
-0.046
FATHMM_MKL
Benign
0.52
D
LIST_S2
Benign
0.85
.;.;D;D;D;D;D
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.12
T;T;T;T;T;T;T
MetaSVM
Benign
-0.91
T
MutationAssessor
Benign
0.81
L;L;L;.;.;.;.
PhyloP100
0.45
PrimateAI
Benign
0.31
T
PROVEAN
Benign
-1.1
N;N;N;N;N;N;N
REVEL
Benign
0.082
Sift
Benign
0.19
T;T;T;T;T;T;D
Sift4G
Benign
0.12
T;T;T;.;.;.;.
Polyphen
0.032
B;B;B;.;.;.;.
Vest4
0.13
MutPred
0.29
Loss of disorder (P = 0.0736);Loss of disorder (P = 0.0736);Loss of disorder (P = 0.0736);Loss of disorder (P = 0.0736);Loss of disorder (P = 0.0736);Loss of disorder (P = 0.0736);Loss of disorder (P = 0.0736);
MVP
0.65
MPC
0.089
ClinPred
0.21
T
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.077
gMVP
0.37
Mutation Taster
=94/6
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs782770278; hg19: chr17-39925809; API