17-41769480-C-G

Variant names:

• chr17-41769480-C-G
• rs782392706
• NM_002230.4:c.406G>C

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2 PP3_Moderate PP5

The NM_002230.4(JUP):​c.406G>C​(p.Asp136His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,460,744 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. D136N) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: JUP NM_002230.4 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1 U:2
• Conservation: PhyloP100: 7.90
• Publications: 1 publications found

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 cardiomyopathy

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• 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, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp, Orphanet
• lethal acantholytic epidermolysis bullosa

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.884
• PP5: Variant 17-41769480-C-G is Pathogenic according to our data. Variant chr17-41769480-C-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 201810.

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	JUP	NM_002230.4	MANE Select	c.406G>C	p.Asp136His	missense	Exon 3 of 14	NP_002221.1	P14923
	JUP	NM_001352773.2		c.406G>C	p.Asp136His	missense	Exon 3 of 14	NP_001339702.1	P14923
	JUP	NM_001352774.2		c.406G>C	p.Asp136His	missense	Exon 3 of 15	NP_001339703.1	P14923

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	JUP	ENST00000393931.8	TSL:1 MANE Select	c.406G>C	p.Asp136His	missense	Exon 3 of 14	ENSP00000377508.3	P14923
	JUP	ENST00000310706.9	TSL:1	c.406G>C	p.Asp136His	missense	Exon 3 of 15	ENSP00000311113.5	P14923
	JUP	ENST00000393930.5	TSL:5	c.406G>C	p.Asp136His	missense	Exon 3 of 15	ENSP00000377507.1	P14923

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00 AC: 0 AN: 247252 AF XY: 0.00

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: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1460744 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 726620

African (AFR) AF: 0.00 AC: 0 AN: 33472

American (AMR) AF: 0.00 AC: 0 AN: 44592

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26096

East Asian (EAS) AF: 0.00 AC: 0 AN: 39676

South Asian (SAS) AF: 0.00 AC: 0 AN: 86014

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53114

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00000270 AC: 3 AN: 1111688

Other (OTH) AF: 0.0000166 AC: 1 AN: 60326

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ExAC AF: 0.00000824 AC: 1

EpiCase AF: 0.00

EpiControl AF: 0.0000594

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	1	-	Cardiovascular phenotype (1)
-	1	-	Naxos disease;C1969081:Arrhythmogenic right ventricular dysplasia 12 (1)
1	-	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.35	D
BayesDel_noAF	Pathogenic	0.27
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.84	D
Eigen	Pathogenic	0.69
Eigen_PC	Uncertain	0.61
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Pathogenic	0.99	D
M_CAP	Uncertain	0.16	D
MetaRNN	Pathogenic	0.88	D
MetaSVM	Uncertain	-0.072	T
MutationAssessor	Uncertain	2.8	M
PhyloP100		7.9
PrimateAI	Pathogenic	0.88	D
PROVEAN	Pathogenic	-5.6	D
REVEL	Pathogenic	0.68
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0020	D
Polyphen		1.0	D
Vest4		0.89
MutPred		0.59		Loss of solvent accessibility (P = 0.0509)
MVP		0.88
MPC		0.51
ClinPred		1.0	D
GERP RS		5.5
Varity_R		0.68
gMVP		0.76

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

Other links and lift over

dbSNP: rs782392706; hg19: chr17-39925732;