SERPINB3

Serpin family B member 3 P29508 SPB3_HUMAN
Protein Coding Chr 18 18q21.33 Swiss-Prot reviewed Entrez 6317
Mutations
846
CL 145 · Tissue 691
Samples
452
CL 103 · Tissue 343
Peptides
285
unique mutant peptides
Transcripts
2
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
Mutations846145691
Samples452103343
Peptides28549249

Function

SERPINB3 · Serpin family B member 3

Enables cysteine-type endopeptidase inhibitor activity; protease binding activity; and virus receptor activity. Involved in several processes, including autocrine signaling; paracrine signaling; and regulation of cellular protein metabolic process. Located in cytoplasmic vesicle; extracellular exosome; and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

Isoforms & Proteins

2 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
ENST00000283752 P29508 486 269
ENST00000332821 P29508-2 360 233

Gene Properties

Type
Protein Coding
Chromosome
18
Cytoband
18q21.33
Entrez ID
Aliases
HsT1196SCCSCCA-1SCCA-PDSCCA1SSCA1

Recurrent Mutations

All 269 amino-acid changes on canonical ENST00000283752 · 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 SERPINB3 · 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 SERPINB3 – 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
Melanoma
11/210 5%
104/1899 5%
Rhabdomyosarcoma
1/33 3%
6/171 4%
Non-Small Cell Lung Carcinoma
14/304 5%
39/1390 3%
Glioblastoma
3/98 3%
0/0 0%
Gastrointestinal Stromal Tumour
0/0 0%
4/133 3%
Endometrial Carcinoma
2/42 5%
17/612 3%
Burkitts Lymphoma
3/32 9%
2/196 1%
Neuroendocrine Tumour
13/154 8%
0/577 0%
Mesothelioma
4/62 6%
0/165 0%
Other Solid Cancers
3/94 3%
17/1515 1%
Plasma Cell Myeloma
2/44 5%
2/305 1%
Chondrosarcoma
0/14 0%
1/75 1%
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Germ Cell Tumour
1/25 4%
1/169 1%
Bladder Carcinoma
1/58 2%
9/956 1%
Osteosarcoma
2/45 4%
0/166 0%
Colorectal Carcinoma
6/143 4%
23/3239 1%
Gastric Carcinoma
0/74 0%
16/1809 1%
Squamous Cell Lung Carcinoma
2/57 4%
5/810 1%
Small Cell Lung Carcinoma
0/9 0%
6/752 1%
Glioma
1/52 2%
16/2127 1%
Hepatocellular Carcinoma
0/46 0%
17/2210 1%
Other Sarcomas
5/69 7%
0/699 0%
Non-Cancerous
4/104 4%
2/830 0%
Esophageal Carcinoma
1/23 4%
3/769 0%
Breast Carcinoma
5/144 3%
11/3264 0%
B-Cell Non-Hodgkins Lymphoma
5/88 6%
7/2534 0%
Kidney Carcinoma
5/85 6%
4/1862 0%
Cervical Carcinoma
0/35 0%
2/422 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
11/2550 0%

Mutation Distribution

Where SERPINB3 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in SERPINB3 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 39 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 846 mutations in SERPINB3

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