rs199840543

Variant summary

Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_020433.5(JPH2):​c.780C>T​(p.Ala260Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000382 in 1,573,500 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.00047 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00037 ( 7 hom. )

Consequence

JPH2
NM_020433.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: -0.129

Publications

3 publications found
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]
JPH2 Gene-Disease associations (from GenCC):
  • hypertrophic cardiomyopathy 17
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • dilated cardiomyopathy
    Inheritance: SD, AR, AD Classification: STRONG, MODERATE, LIMITED Submitted by: ClinGen
  • cardiomyopathy, dilated, 2E
    Inheritance: Unknown, AR Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
  • hypertrophic cardiomyopathy
    Inheritance: AD Classification: MODERATE Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.55).
BP6
Variant 20-44160007-G-A is Benign according to our data. Variant chr20-44160007-G-A is described in ClinVar as Benign. ClinVar VariationId is 226677.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.129 with no splicing effect.
BS2
High Homozygotes in GnomAdExome4 at 7 SD,AD,Unknown,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020433.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
JPH2
NM_020433.5
MANE Select
c.780C>Tp.Ala260Ala
synonymous
Exon 2 of 6NP_065166.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
JPH2
ENST00000372980.4
TSL:5 MANE Select
c.780C>Tp.Ala260Ala
synonymous
Exon 2 of 6ENSP00000362071.3Q9BR39-1
JPH2
ENST00000900331.1
c.780C>Tp.Ala260Ala
synonymous
Exon 2 of 7ENSP00000570390.1
JPH2
ENST00000950207.1
c.843C>Tp.Ala281Ala
synonymous
Exon 3 of 7ENSP00000620266.1

Frequencies

GnomAD3 genomes
AF:
0.000467
AC:
71
AN:
152030
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:
0.0136
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00126
AC:
232
AN:
184154
AF XY:
0.00128
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0161
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000373
AC:
530
AN:
1421356
Hom.:
7
Cov.:
32
AF XY:
0.000386
AC XY:
272
AN XY:
704680
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32766
American (AMR)
AF:
0.00
AC:
0
AN:
40486
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25454
East Asian (EAS)
AF:
0.0129
AC:
489
AN:
37884
South Asian (SAS)
AF:
0.000305
AC:
25
AN:
81856
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
39314
Middle Eastern (MID)
AF:
0.000175
AC:
1
AN:
5700
European-Non Finnish (NFE)
AF:
9.10e-7
AC:
1
AN:
1098696
Other (OTH)
AF:
0.000236
AC:
14
AN:
59200
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.507
Heterozygous variant carriers
0
39
79
118
158
197
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.000467
AC:
71
AN:
152144
Hom.:
0
Cov.:
32
AF XY:
0.000457
AC XY:
34
AN XY:
74370
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41560
American (AMR)
AF:
0.00
AC:
0
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.0136
AC:
70
AN:
5140
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67940
Other (OTH)
AF:
0.00
AC:
0
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
4
8
13
17
21
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:
0.00
Hom.:
0
Bravo
AF:
0.000703
Asia WGS
AF:
0.00145
AC:
5
AN:
3474

ClinVar

ClinVar submissions
Significance:Benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
4
not specified (4)
-
-
1
Cardiovascular phenotype (1)
-
-
1
Hypertrophic cardiomyopathy (1)
-
-
1
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.55
CADD
Benign
8.7
DANN
Benign
0.92
PhyloP100
-0.13
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs199840543; hg19: chr20-42788647; API