JPH1

Junctophilin 1 Q9HDC5 JPH1_HUMAN
Protein Coding Chr 8 8q21.11 Swiss-Prot reviewed Entrez 56704
Mutations
466
CL 85 · Tissue 370
Samples
446
CL 85 · Tissue 350
Peptides
311
unique mutant peptides
Transcripts
1
isoforms mutated

Stats by Source

Total, split by cell line (COSMIC CL / DepMap / PubMed) vs tissue (COSMIC primary tissue)

How the counts split by source
Stats by Source

Total = all mutations for this gene across every source.

Cell line = COSMIC Cell Lines Project + DepMap + PubMed.

Tissue = COSMIC primary-tissue (patient tumour) samples.

Total can exceed cell line + tissue: COSMIC tissue-derived models sit only in global, and a peptide can be shared across both.

TotalCell lineTissue
Mutations46685370
Samples44685350
Peptides31151268

Function

JPH1 · 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].

Isoforms & Proteins

1 transcript · UniProt mapping is sequence-verified (AA-safe)

About the isoform mapping
Isoforms & Proteins

Each Ensembl transcript (ENST) this gene is mutated on, with its matched UniProt accession.

The mapping is sequence-verified: the UniProt sequence is identical to the transcript translation, so amino-acid positions line up exactly. A * marks an unreviewed (TrEMBL) entry.

Counts are mutations and unique mutant peptides on each transcript.

TranscriptUniProtMutationsPeptides
ENST00000342232 Q9HDC5 466 311

Gene Properties

Type
Protein Coding
Chromosome
8
Cytoband
8q21.11
Entrez ID
Aliases
CMT2KCMYO25JP-1JP1

Recurrent Mutations

All 311 amino-acid changes on canonical ENST00000342232 · needle height = samples · drag the mini-map to zoom

What this lollipop shows
Recurrent Mutations

A lollipop / needle plot – the standard way to show recurrent mutations along a protein (as used by cBioPortal and MutationMapper).

X-axis = amino-acid position in the protein.

Needle height & head size = how often that exact amino-acid change was observed (its recurrence). Tall/large heads are mutational hotspots.

The most recurrent changes are labelled; hover any needle for the change, position and counts.

Mutation frequency across cancer types

% of samples with a missense/complex mutation in JPH1 · cell line vs tissue

How this frequency is counted
Cancer-type mutation frequency

For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in JPH1 – counted as distinct samples (a sample counts once no matter how many mutations it has).

Split into cell line and tissue; each cell shows mutated / total and the percentage. Cohorts with <20 samples are omitted. Ordered by combined frequency.

Cancer typeCell linesTissue samples
T-Lymphoblastic Leukemia
4/40 10%
0/0 0%
Endometrial Carcinoma
17/42 40%
20/612 3%
T-Cell Non-Hodgkins Lymphoma
1/26 4%
0/0 0%
Oral Cavity Carcinoma
2/54 4%
0/0 0%
Acute Myeloid Leukemia
3/90 3%
0/0 0%
Melanoma
5/210 2%
56/1899 3%
Hodgkins Lymphoma
2/16 12%
1/122 1%
Non-Small Cell Lung Carcinoma
10/304 3%
20/1390 1%
Gastric Carcinoma
1/74 1%
32/1809 2%
Rhabdomyosarcoma
2/33 6%
1/171 1%
Colorectal Carcinoma
8/143 6%
40/3239 1%
Other Solid Cancers
1/94 1%
19/1515 1%
Other Sarcomas
2/69 3%
7/699 1%
Squamous Cell Lung Carcinoma
1/57 2%
9/810 1%
Glioma
2/52 4%
23/2127 1%
Hepatocellular Carcinoma
1/46 2%
24/2210 1%
Glioblastoma
1/98 1%
0/0 0%
Head and Neck Carcinoma
1/85 1%
14/1574 1%
Burkitts Lymphoma
1/32 3%
1/196 1%
Esophageal Carcinoma
1/23 4%
6/769 1%
Ovarian Carcinoma
4/109 4%
5/998 0%
Small Cell Lung Carcinoma
0/9 0%
6/752 1%
Biliary Tract Carcinoma
1/54 2%
6/950 1%
Bladder Carcinoma
0/58 0%
7/956 1%
Esophageal Squamous Cell Carcinoma
1/51 2%
17/2550 1%
Cervical Carcinoma
0/35 0%
3/422 1%
Non-Cancerous
0/104 0%
5/830 1%
Germ Cell Tumour
0/25 0%
1/169 1%
Medulloblastoma
0/0 0%
2/450 0%
Mesothelioma
0/62 0%
1/165 1%

Mutation Distribution

Where JPH1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in JPH1 were found in each tissue, across the whole database.

Each bar is a tissue (cell-line and tissue names are merged to the standard tissue), split into cell line and tissue (patient tumour) contributions.

This shows the cancer-context where this gene is recurrently altered.

GTEx Expression

Median TPM across 54 healthy tissues

GTEx Portal ↗
About the expression data
GTEx Expression

Median gene expression (TPM) in normal, non-cancer human tissues from the GTEx project.

Useful for judging tumour specificity – a strong neoantigen target ideally comes from a gene with low expression in healthy tissues.

Scroll or drag the mini-axis below the chart to browse all tissues.

Mutations

All 466 mutations in JPH1

About the mutation list
Mutations

Every mutation record for this gene, across all samples and sources.

The Sample column links to the cell line (cell-line samples) or the tissue type (tissue samples).

Use the Type / Source filters, the search box, and column sorting to explore; each CAN-IMMUNE ID opens the full mutation & peptide view.

IDSampleTranscriptAA Change CDSTypeSourceMutant PeptideWild-type Peptide