rs35297577

Positions:

• chr17-41769109-G-A

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_Strong BP6_Very_Strong BP7 BS1

The NM_002230.4(JUP):​c.567C>T​(p.Val189Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000197 in 1,612,042 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 Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.00083 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00013 (0 hom.)
• Consequence: JUP NM_002230.4 synonymous
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:10
• Conservation: PhyloP100: -2.28

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]

ACMG classification

Verdict is Benign. Variant got -17 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.65).
• BP6: Variant 17-41769109-G-A is Benign according to our data. Variant chr17-41769109-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 45854.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr17-41769109-G-A is described in Lovd as [Benign].
• BP7: Synonymous conserved (PhyloP=-2.28 with no splicing effect.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000834 (127/152298) while in subpopulation AFR AF= 0.00253 (105/41568). AF 95% confidence interval is 0.00213. There are 0 homozygotes in gnomad4. There are 63 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
JUP	NM_002230.4	c.567C>T	p.Val189Val	synonymous_variant	4/14	ENST00000393931.8	NP_002221.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
JUP	ENST00000393931.8	c.567C>T	p.Val189Val	synonymous_variant	4/14	1	NM_002230.4	ENSP00000377508.3

Frequencies

GnomAD3 genomes AF: 0.000828 AC: 126 AN: 152180 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00251

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000720

Gnomad ASJ AF: 0.000865

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000441

Gnomad OTH AF: 0.00239

GnomAD3 exomes AF: 0.000299 AC: 74 AN: 247354 Hom.: 0 AF XY: 0.000261 AC XY: 35 AN XY: 134114

Gnomad AFR exome AF: 0.00255

Gnomad AMR exome AF: 0.000551

Gnomad ASJ exome AF: 0.000697

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000356

Gnomad OTH exome AF: 0.000495

GnomAD4 exome AF: 0.000131 AC: 191 AN: 1459744 Hom.: 0 Cov.: 33 AF XY: 0.000112 AC XY: 81 AN XY: 726222

Gnomad4 AFR exome AF: 0.00248

Gnomad4 AMR exome AF: 0.000537

Gnomad4 ASJ exome AF: 0.000498

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000232

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000405

Gnomad4 OTH exome AF: 0.000381

GnomAD4 genome AF: 0.000834 AC: 127 AN: 152298 Hom.: 0 Cov.: 32 AF XY: 0.000846 AC XY: 63 AN XY: 74456

Gnomad4 AFR AF: 0.00253

Gnomad4 AMR AF: 0.000719

Gnomad4 ASJ AF: 0.000865

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000441

Gnomad4 OTH AF: 0.00237

Alfa AF: 0.000570 Hom.: 0

Bravo AF: 0.000831

Asia WGS AF: 0.000289 AC: 1 AN: 3478

EpiCase AF: 0.000218

EpiControl AF: 0.00

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:10

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:5

Likely benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Mar 19, 2012	p.Val189Val in Exon 04 of JUP: This variant is not expected to have clinical sig nificance because it does not alter an amino acid residue, is not located within the splice consensus sequence. It has been identified in 0.2% (7/3734) of Afric an American chromosomes from a broad population by the NHLBI Exome Sequencing Pr oject (http://evs.gs.washington.edu/EVS; dbSNP rs35297577). -
Benign, no assertion criteria provided	clinical testing	Clinical Genetics, Academic Medical Center	-	- -
Benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Jun 03, 2019	Variant summary: JUP c.567C>T alters a non-conserved nucleotide resulting in a synonymous change. 4/4 computational tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 0.0003 in 247354 control chromosomes, predominantly at a frequency of 0.0026 within the African or African-American subpopulation in the gnomAD database. The observed variant frequency within African or African-American control individuals in the gnomAD database is approximately 104 fold of the estimated maximal expected allele frequency for a pathogenic variant in JUP causing Cardiomyopathy phenotype (2.5e-05), strongly suggesting that the variant is a benign polymorphism found primarily in populations of African or African-American origin. To our knowledge, no occurrence of c.567C>T in individuals affected with Cardiomyopathy and no experimental evidence demonstrating its impact on protein function have been reported. Co-occurrences with other pathogenic variant(s) have been reported (TTR c.424G>A, p.Val142Ile) at our laboratory providing supporting evidence for a benign role. Two clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as benign/likely benign. Based on the evidence outlined above, the variant was classified as benign. -
Likely benign, criteria provided, single submitter	clinical testing	Phosphorus, Inc.	Jan 13, 2022	This synonymous variant has occurred in GnomAD with a total MAF of 0.0305% and with the highest MAF of 0.2576% in the African population. This position is not conserved. In silico splicing algorithm predicted no impact on splicing, but no functional studies were performed to confirm this prediction. This variant NM_002230.4(JUP):c.567C>T (p.Val189=) is present in the ClinVar database (ID: 45854). The variant has not occurred in the literature in association with the disease. Considering that the variant has a relatively high frequency in a subpopulation, it has been classified as Likely Benign. -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Mar 10, 2014	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

not provided Benign:2

Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Dec 01, 2022	JUP: BP4, BP7 -
Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -

JUP-related disorder Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Apr 28, 2024

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Cardiovascular phenotype Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 19, 2018

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. -

Naxos disease;C1969081:Arrhythmogenic right ventricular dysplasia 12 Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 24, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.65
CADD	Benign	3.4
DANN	Benign	0.89

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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

Other links and lift over

dbSNP: rs35297577; hg19: chr17-39925361;