SERPINB8

Serpin family B member 8 P50452 SPB8_HUMAN
Protein Coding Chr 18 18q22.1 Swiss-Prot reviewed Entrez 5271
Mutations
823
CL 119 · Tissue 691
Samples
217
CL 47 · Tissue 166
Peptides
183
unique mutant peptides
Transcripts
5
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
Mutations823119691
Samples21747166
Peptides18334141

Function

SERPINB8 · Serpin family B member 8

The protein encoded by this gene is a member of the ov-serpin family of serine protease inhibitors. The encoded protein is produced by platelets and can bind to and inhibit the function of furin, a serine protease involved in platelet functions. In addition, this protein has been found to enhance the mechanical stability of cell-cell adhesion in the skin, and defects in this gene have been associated with an autosomal-recessive form of exfoliative ichthyosis. [provided by RefSeq, Jan 2017].

Isoforms & Proteins

5 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
ENST00000397985 P50452 237 161
ENST00000353706 P50452 212 149
ENST00000636430 A0A1B0GU38* 129 96
ENST00000397988 P50452-2 128 95
ENST00000542677 P50452-3 117 81

Gene Properties

Type
Protein Coding
Chromosome
18
Cytoband
18q22.1
Entrez ID
Aliases
C18orf53CAP2PI-8PI8PSS5

Recurrent Mutations

All 161 amino-acid changes on canonical ENST00000397985 · 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 SERPINB8 · 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 SERPINB8 – 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
Gastrointestinal Stromal Tumour
0/0 0%
5/133 4%
Endometrial Carcinoma
4/42 10%
15/612 2%
T-Lymphoblastic Leukemia
1/40 2%
0/0 0%
Acute Myeloid Leukemia
2/90 2%
0/0 0%
Glioblastoma
2/98 2%
0/0 0%
Bladder Carcinoma
2/58 3%
13/956 1%
Melanoma
7/210 3%
16/1899 1%
Non-Small Cell Lung Carcinoma
3/304 1%
15/1390 1%
Squamous Cell Lung Carcinoma
2/57 4%
6/810 1%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Colorectal Carcinoma
9/143 6%
15/3239 0%
Neuroendocrine Tumour
4/154 3%
1/577 0%
Cervical Carcinoma
0/35 0%
3/422 1%
Germ Cell Tumour
0/25 0%
1/169 1%
Osteosarcoma
1/45 2%
0/166 0%
Other Solid Cancers
0/94 0%
7/1515 0%
Gastric Carcinoma
0/74 0%
8/1809 0%
Small Cell Lung Carcinoma
2/9 22%
1/752 0%
Glioma
1/52 2%
7/2127 0%
Non-Cancerous
0/104 0%
3/830 0%
Ewings Sarcoma
1/63 2%
0/262 0%
Pancreatic Carcinoma
2/89 2%
3/1611 0%
Plasma Cell Myeloma
0/44 0%
1/305 0%
Esophageal Carcinoma
0/23 0%
2/769 0%
Head and Neck Carcinoma
0/85 0%
4/1574 0%
Thyroid Gland Carcinoma
0/45 0%
4/1592 0%
Esophageal Squamous Cell Carcinoma
1/51 2%
5/2550 0%
Other Blood Cancers
0/61 0%
6/2725 0%
Hepatocellular Carcinoma
0/46 0%
5/2210 0%
Breast Carcinoma
1/144 1%
6/3264 0%

Mutation Distribution

Where SERPINB8 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in SERPINB8 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 823 mutations in SERPINB8

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