SSR4

Signal sequence receptor subunit 4 P51571 SSRD_HUMAN
Protein Coding Chr X Xq28 Swiss-Prot reviewed Entrez 6748
Mutations
228
CL 27 · Tissue 197
Samples
64
CL 12 · Tissue 51
Peptides
58
unique mutant peptides
Transcripts
4
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
Mutations22827197
Samples641251
Peptides581048

Function

SSR4 · Signal sequence receptor subunit 4

This gene encodes the delta subunit of the translocon-associated protein complex which is involved in translocating proteins across the endoplasmic reticulum membrane. The encoded protein is located in the Xq28 region and is arranged in a compact head-to-head manner with the isocitrate dehydrogenase 3 (NAD+) gamma gene and both genes are driven by a CpG-embedded bidirectional promoter. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Mar 2011].

Isoforms & Proteins

4 transcripts · 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
ENST00000370086 P51571 65 54
ENST00000320857 P51571 57 50
ENST00000370087 P51571 57 50
ENST00000370085 A6NLM8* 49 42

Gene Properties

Type
Protein Coding
Chromosome
X
Cytoband
Xq28
Entrez ID
Aliases
CDG1YTRAPD

Recurrent Mutations

All 54 amino-acid changes on canonical ENST00000370086 · 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 SSR4 · 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 SSR4 – 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
1/40 2%
0/0 0%
Endometrial Carcinoma
2/42 5%
7/612 1%
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Other Sarcomas
2/69 3%
2/699 0%
Gastric Carcinoma
0/74 0%
6/1809 0%
Other Solid Cancers
1/94 1%
4/1515 0%
Biliary Tract Carcinoma
0/54 0%
3/950 0%
Small Cell Lung Carcinoma
0/9 0%
2/752 0%
Melanoma
0/210 0%
5/1899 0%
Non-Small Cell Lung Carcinoma
0/304 0%
4/1390 0%
Squamous Cell Lung Carcinoma
2/57 4%
0/810 0%
Medulloblastoma
0/0 0%
1/450 0%
Colorectal Carcinoma
0/143 0%
4/3239 0%
Pancreatic Carcinoma
1/89 1%
1/1611 0%
Thyroid Gland Carcinoma
0/45 0%
2/1592 0%
Non-Cancerous
0/104 0%
1/830 0%
Kidney Carcinoma
0/85 0%
2/1862 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
2/2550 0%
Neuroblastoma
1/87 1%
0/1331 0%
Head and Neck Carcinoma
0/85 0%
1/1574 0%
Breast Carcinoma
0/144 0%
2/3264 0%
Glioma
0/52 0%
1/2127 0%
Other Blood Cancers
1/61 2%
0/2725 0%
Hepatocellular Carcinoma
0/46 0%
1/2210 0%
B-Lymphoblastic Leukemia
0/55 0%
1/2640 0%

Mutation Distribution

Where SSR4 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in SSR4 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 228 mutations in SSR4

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