SSR2

Signal sequence receptor subunit 2 P43308 SSRB_HUMAN
Protein Coding Chr 1 1q22 Swiss-Prot reviewed Entrez 6746
Mutations
213
CL 42 · Tissue 171
Samples
84
CL 19 · Tissue 65
Peptides
84
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
Mutations21342171
Samples841965
Peptides841768

Function

SSR2 · Signal sequence receptor subunit 2

The signal sequence receptor (SSR) is a glycosylated endoplasmic reticulum (ER) membrane receptor associated with protein translocation across the ER membrane. The SSR consists of 2 subunits, a 34-kD glycoprotein (alpha-SSR or SSR1) and a 22-kD glycoprotein (beta-SSR or SSR2). The human beta-signal sequence receptor gene (SSR2) maps to chromosome bands 1q21-q23. [provided by RefSeq, Jul 2008].

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
ENST00000295702 P43308 79 57
ENST00000480567 P43308 73 54
ENST00000496742 E9PQJ7* 32 27
ENST00000529008 E9PN13* 29 25

Gene Properties

Type
Protein Coding
Chromosome
1
Cytoband
1q22
Entrez ID
Aliases
HSD25TLAPTRAP-BETATRAPB

Recurrent Mutations

All 57 amino-acid changes on canonical ENST00000295702 · 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 SSR2 · 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 SSR2 – 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
Chronic Myelogenous Leukemia
2/25 8%
0/0 0%
Chondrosarcoma
2/14 14%
0/75 0%
Endometrial Carcinoma
0/42 0%
5/612 1%
Gastrointestinal Stromal Tumour
0/0 0%
1/133 1%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Germ Cell Tumour
0/25 0%
1/169 1%
Melanoma
2/210 1%
9/1899 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
12/2550 0%
Cervical Carcinoma
1/35 3%
1/422 0%
Mesothelioma
1/62 2%
0/165 0%
Squamous Cell Lung Carcinoma
2/57 4%
1/810 0%
Bladder Carcinoma
1/58 2%
2/956 0%
Colorectal Carcinoma
4/143 3%
5/3239 0%
Other Solid Cancers
0/94 0%
3/1515 0%
Glioma
0/52 0%
4/2127 0%
Thyroid Gland Carcinoma
0/45 0%
3/1592 0%
Gastric Carcinoma
0/74 0%
3/1809 0%
Breast Carcinoma
1/144 1%
4/3264 0%
Neuroendocrine Tumour
1/154 1%
0/577 0%
Hepatocellular Carcinoma
1/46 2%
2/2210 0%
Non-Cancerous
0/104 0%
1/830 0%
Kidney Carcinoma
0/85 0%
2/1862 0%
Other Blood Cancers
0/61 0%
2/2725 0%
Head and Neck Carcinoma
0/85 0%
1/1574 0%
Non-Small Cell Lung Carcinoma
0/304 0%
1/1390 0%
Prostate Carcinoma
0/13 0%
1/2105 0%
B-Lymphoblastic Leukemia
1/55 2%
0/2640 0%

Mutation Distribution

Where SSR2 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in SSR2 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 213 mutations in SSR2

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