SPINK1

Serine peptidase inhibitor Kazal type 1 P00995 ISK1_HUMAN
Protein Coding Chr 5 5q32 Swiss-Prot reviewed Entrez 6690
Mutations
103
CL 25 · Tissue 78
Samples
55
CL 15 · Tissue 40
Peptides
40
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
Mutations1032578
Samples551540
Peptides40734

Function

SPINK1 · Serine peptidase inhibitor Kazal type 1

The protein encoded by this gene is a trypsin inhibitor, which is secreted from pancreatic acinar cells into pancreatic juice. It is thought to function in the prevention of trypsin-catalyzed premature activation of zymogens within the pancreas and the pancreatic duct. Mutations in this gene are associated with hereditary pancreatitis and tropical calcific pancreatitis. [provided by RefSeq, Oct 2008].

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
ENST00000296695 P00995 56 35
ENST00000510027 D6RIU5* 47 30

Gene Properties

Type
Protein Coding
Chromosome
5
Cytoband
5q32
Entrez ID
Aliases
PCTTPSTISpink3TATITCP

Recurrent Mutations

All 35 amino-acid changes on canonical ENST00000296695 · 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 SPINK1 · 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 SPINK1 – 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
4/210 2%
14/1899 1%
Endometrial Carcinoma
2/42 5%
2/612 0%
Squamous Cell Lung Carcinoma
3/57 5%
1/810 0%
Plasma Cell Myeloma
1/44 2%
0/305 0%
Non-Small Cell Lung Carcinoma
3/304 1%
1/1390 0%
Other Solid Cancers
0/94 0%
3/1515 0%
Neuroendocrine Tumour
0/154 0%
1/577 0%
Small Cell Lung Carcinoma
0/9 0%
1/752 0%
Other Sarcomas
0/69 0%
1/699 0%
Head and Neck Carcinoma
0/85 0%
2/1574 0%
Thyroid Gland Carcinoma
0/45 0%
2/1592 0%
Hepatocellular Carcinoma
0/46 0%
2/2210 0%
Breast Carcinoma
0/144 0%
3/3264 0%
Pancreatic Carcinoma
0/89 0%
1/1611 0%
Colorectal Carcinoma
0/143 0%
2/3239 0%
Prostate Carcinoma
0/13 0%
1/2105 0%
Kidney Carcinoma
0/85 0%
1/1862 0%
Glioma
1/52 2%
0/2127 0%
Gastric Carcinoma
0/74 0%
1/1809 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
1/2550 0%
B-Cell Non-Hodgkins Lymphoma
1/88 1%
0/2534 0%

Mutation Distribution

Where SPINK1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in SPINK1 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 103 mutations in SPINK1

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