rs782341732

chr17-41769629-C-Gchr17-41769629-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_002230.4(JUP):c.257G>C(p.Arg86Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000688 in 1,453,898 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R86Q) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: JUP NM_002230.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.89

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 Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.851

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
JUP	NM_002230.4	c.257G>C	p.Arg86Pro	missense_variant	3/14	ENST00000393931.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
JUP	ENST00000393931.8	c.257G>C	p.Arg86Pro	missense_variant	3/14	1	NM_002230.4	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000429 AC: 1 AN: 233120 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 125678

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 SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000948

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.88e-7 AC: 1 AN: 1453898 Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0 AN XY: 722394

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.02e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.83
BayesDel_addAF	Pathogenic	0.37	D
BayesDel_noAF	Pathogenic	0.29
Cadd	Pathogenic	30
Dann	Uncertain	0.99
DEOGEN2	Pathogenic	0.82	D;D;D;.;T;.;T;T;.
Eigen	Pathogenic	0.83
Eigen_PC	Pathogenic	0.82
FATHMM_MKL	Pathogenic	0.98	D
M_CAP	Benign	0.075	D
MetaRNN	Pathogenic	0.84	D;D;D;D;D;D;D;D;D
MetaSVM	Uncertain	-0.12	T
MutationAssessor	Uncertain	2.4	M;M;M;.;.;.;.;.;.
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Uncertain	0.75	T
PROVEAN	Pathogenic	-5.0	D;D;D;D;D;D;D;.;D
REVEL	Uncertain	0.64
Sift	Benign	0.044	D;D;D;T;T;T;T;.;D
Sift4G	Uncertain	0.054	T;T;T;.;.;.;.;D;.
Polyphen		1.0	D;D;D;.;.;.;.;.;.
Vest4		0.97
MutPred		0.63		Loss of MoRF binding (P = 0.008);Loss of MoRF binding (P = 0.008);Loss of MoRF binding (P = 0.008);Loss of MoRF binding (P = 0.008);Loss of MoRF binding (P = 0.008);Loss of MoRF binding (P = 0.008);Loss of MoRF binding (P = 0.008);Loss of MoRF binding (P = 0.008);Loss of MoRF binding (P = 0.008);
MVP		0.96
MPC		0.13
ClinPred		0.98	D
GERP RS		5.8
Varity_R		0.79
gMVP		0.96

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

Other links and lift over

dbSNP: rs782341732; hg19: chr17-39925881;