chr8-74270698-G-A

Variant names:

• chr8-74270698-G-A
• rs10504569
• NM_020647.4:c.1140-11195C>T

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_020647.4(JPH1):​c.1140-11195C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.07 in 152,202 control chromosomes in the GnomAD database, including 952 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.070 (952 hom., cov: 32)
• Consequence: JPH1 NM_020647.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0100
• Publications: 0 publications found

Genes affected

JPH1 (HGNC:14201): (junctophilin 1) 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. [provided by RefSeq, Jul 2008]

JPH1 Gene-Disease associations (from GenCC):

• congenital myopathy 25

  Inheritance: AR Classification: MODERATE Submitted by: G2P

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.199 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
JPH1	NM_020647.4	c.1140-11195C>T		intron_variant	Intron 2 of 5	ENST00000342232.5	NP_065698.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
JPH1	ENST00000342232.5	c.1140-11195C>T		intron_variant	Intron 2 of 5	1	NM_020647.4	ENSP00000344488.4
JPH1	ENST00000519947.1	n.*535-11195C>T		intron_variant	Intron 2 of 4	1		ENSP00000429652.1

Frequencies

GnomAD3 genomes AF: 0.0698 AC: 10612 AN: 152084 Hom.: 946 Cov.: 32

Gnomad AFR AF: 0.202

Gnomad AMI AF: 0.00439

Gnomad AMR AF: 0.0350

Gnomad ASJ AF: 0.0605

Gnomad EAS AF: 0.0847

Gnomad SAS AF: 0.0540

Gnomad FIN AF: 0.00998

Gnomad MID AF: 0.0538

Gnomad NFE AF: 0.00796

Gnomad OTH AF: 0.0612

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0700 AC: 10656 AN: 152202 Hom.: 952 Cov.: 32 AF XY: 0.0685 AC XY: 5103 AN XY: 74446

African (AFR) AF: 0.203 AC: 8413 AN: 41496

American (AMR) AF: 0.0349 AC: 534 AN: 15296

Ashkenazi Jewish (ASJ) AF: 0.0605 AC: 210 AN: 3472

East Asian (EAS) AF: 0.0849 AC: 440 AN: 5184

South Asian (SAS) AF: 0.0539 AC: 260 AN: 4828

European-Finnish (FIN) AF: 0.00998 AC: 106 AN: 10618

Middle Eastern (MID) AF: 0.0578 AC: 17 AN: 294

European-Non Finnish (NFE) AF: 0.00796 AC: 541 AN: 67990

Other (OTH) AF: 0.0620 AC: 131 AN: 2112

Alfa AF: 0.0226 Hom.: 259

Bravo AF: 0.0781

Asia WGS AF: 0.103 AC: 358 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	4.8
DANN	Benign	0.57
PhyloP100		0.010
Mutation Taster		=100/0	polymorphism (auto)

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: rs10504569; hg19: chr8-75182933;