rs554853074

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_020433.5(JPH2):ā€‹c.572C>Gā€‹(p.Pro191Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000454 in 1,443,946 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.00053 ( 0 hom., cov: 32)
Exomes š‘“: 0.00045 ( 3 hom. )

Consequence

JPH2
NM_020433.5 missense

Scores

1
17

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts U:1B:12

Conservation

PhyloP100: 0.838
Variant links:
Genes affected
JPH2 (HGNC:14202): (junctophilin 2) Junctional complexes between the plasma membrane and endoplasmic/sarcoplasmic reticulum are a common feature of all excitable cell types and mediate cross talk between cell surface and intracellular ion channels. The protein encoded by this gene is a component of junctional complexes and is composed of a C-terminal hydrophobic segment spanning the endoplasmic/sarcoplasmic reticulum membrane and a remaining cytoplasmic domain that shows specific affinity for the plasma membrane. This gene is a member of the junctophilin gene family. Alternative splicing has been observed at this locus and two variants encoding distinct isoforms are described. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.00891152).
BP6
Variant 20-44160215-G-C is Benign according to our data. Variant chr20-44160215-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 201796.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr20-44160215-G-C is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000526 (80/152012) while in subpopulation SAS AF= 0.00186 (9/4832). AF 95% confidence interval is 0.000971. There are 0 homozygotes in gnomad4. There are 41 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 3 SD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
JPH2NM_020433.5 linkuse as main transcriptc.572C>G p.Pro191Arg missense_variant 2/6 ENST00000372980.4 NP_065166.2 Q9BR39-1Q86VZ3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
JPH2ENST00000372980.4 linkuse as main transcriptc.572C>G p.Pro191Arg missense_variant 2/65 NM_020433.5 ENSP00000362071.3 Q9BR39-1

Frequencies

GnomAD3 genomes
AF:
0.000520
AC:
79
AN:
151904
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000394
Gnomad ASJ
AF:
0.0115
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00165
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00637
Gnomad NFE
AF:
0.000250
Gnomad OTH
AF:
0.00192
GnomAD3 exomes
AF:
0.000689
AC:
40
AN:
58082
Hom.:
0
AF XY:
0.000823
AC XY:
27
AN XY:
32818
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000532
Gnomad ASJ exome
AF:
0.00721
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000555
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000246
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000445
AC:
575
AN:
1291934
Hom.:
3
Cov.:
32
AF XY:
0.000507
AC XY:
321
AN XY:
632566
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000770
Gnomad4 ASJ exome
AF:
0.0121
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00104
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000168
Gnomad4 OTH exome
AF:
0.00106
GnomAD4 genome
AF:
0.000526
AC:
80
AN:
152012
Hom.:
0
Cov.:
32
AF XY:
0.000552
AC XY:
41
AN XY:
74314
show subpopulations
Gnomad4 AFR
AF:
0.0000482
Gnomad4 AMR
AF:
0.000393
Gnomad4 ASJ
AF:
0.0115
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00186
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000250
Gnomad4 OTH
AF:
0.00190
Alfa
AF:
0.00186
Hom.:
0
Bravo
AF:
0.000638
ExAC
AF:
0.000246
AC:
8

ClinVar

Significance: Benign/Likely benign
Submissions summary: Uncertain:1Benign:12
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:7
Likely benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesOct 19, 2023- -
Likely benign, criteria provided, single submitterclinical testingGeneDxSep 24, 2021This variant is associated with the following publications: (PMID: 30847666, 29874181) -
Likely benign, no assertion criteria providedclinical testingClinical Genetics, Academic Medical Center-- -
Likely benign, no assertion criteria providedclinical testingClinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center-- -
Likely benign, no assertion criteria providedclinical testingJoint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+-- -
Uncertain significance, no assertion criteria providedprovider interpretationStanford Center for Inherited Cardiovascular Disease, Stanford UniversityMar 10, 2016- -
Likely benign, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, University Medical Center Utrecht-- -
Benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJan 01, 2024JPH2: BS1, BS2 -
not specified Benign:3
Benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineAug 18, 2020The p.Pro191Arg variant in JPH2 is classified as benign because it has been identified in 0.7% (26/3474) of Ashkenazi Jewish chromosomes and in 0.05% (46/88966) of the total chromosomes by gnomAD (http://gnomad.broadinstitute.org). ACMG/AMP Criteria applied: BA1. -
Likely benign, criteria provided, single submitterclinical testingMolecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart InstituteApr 11, 2017- -
Benign, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpMar 12, 2024Variant summary: JPH2 c.572C>G (p.Pro191Arg) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00069 in 58082 control chromosomes. The observed variant frequency is approximately 28 fold of the estimated maximal expected allele frequency for a pathogenic variant in JPH2 causing Cardiomyopathy phenotype (2.5e-05), strongly suggesting that the variant is benign. To our knowledge, no occurrence of c.572C>G in individuals affected with Cardiomyopathy and no experimental evidence demonstrating its impact on protein function have been reported. ClinVar contains an entry for this variant (Variation ID: 201796). Based on the evidence outlined above, the variant was classified as benign. -
Hypertrophic cardiomyopathy Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 22, 2024- -
Cardiovascular phenotype Benign:1
Benign, criteria provided, single submitterclinical testingAmbry GeneticsJun 18, 2015This alteration is classified as 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.44
T
BayesDel_noAF
Benign
-0.51
CADD
Benign
18
DANN
Benign
0.90
DEOGEN2
Benign
0.050
T
Eigen
Benign
-0.15
Eigen_PC
Benign
-0.097
FATHMM_MKL
Benign
0.38
N
LIST_S2
Benign
0.40
T
MetaRNN
Benign
0.0089
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.90
L
PrimateAI
Pathogenic
0.84
D
PROVEAN
Benign
-0.50
N
REVEL
Benign
0.059
Sift
Benign
0.52
T
Sift4G
Benign
0.53
T
Polyphen
0.50
P
Vest4
0.41
MVP
0.80
ClinPred
0.028
T
GERP RS
3.3
Varity_R
0.031
gMVP
0.27

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs554853074; hg19: chr20-42788855; API