SPRR1A

Small proline rich protein 1A P35321 SPR1A_HUMAN
Protein Coding Chr 1 1q21.3 Swiss-Prot reviewed Entrez 6698
Mutations
123
CL 24 · Tissue 98
Samples
111
CL 24 · Tissue 86
Peptides
58
unique mutant peptides
Transcripts
1
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
Mutations1232498
Samples1112486
Peptides581150

Function

SPRR1A · Small proline rich protein 1A

A structural constituent of skin epidermis. Involved in keratinocyte differentiation and peptide cross-linking. Located in cornified envelope. [provided by Alliance of Genome Resources, Apr 2022]

Isoforms & Proteins

1 transcript · 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
ENST00000368762 P35321 123 58

Gene Properties

Type
Protein Coding
Chromosome
1
Cytoband
1q21.3
Entrez ID
Aliases
SPRK

Recurrent Mutations

All 58 amino-acid changes on canonical ENST00000368762 · 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 SPRR1A · 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 SPRR1A – 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%
4/133 3%
Non-Small Cell Lung Carcinoma
10/304 3%
8/1390 1%
Melanoma
4/210 2%
18/1899 1%
Bladder Carcinoma
0/58 0%
7/956 1%
Germ Cell Tumour
1/25 4%
0/169 0%
Rhabdomyosarcoma
1/33 3%
0/171 0%
Endometrial Carcinoma
1/42 2%
2/612 0%
Mesothelioma
1/62 2%
0/165 0%
Non-Cancerous
0/104 0%
4/830 0%
Neuroblastoma
0/87 0%
6/1331 0%
Colorectal Carcinoma
3/143 2%
8/3239 0%
Small Cell Lung Carcinoma
0/9 0%
2/752 0%
Esophageal Carcinoma
0/23 0%
2/769 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Hepatocellular Carcinoma
0/46 0%
5/2210 0%
Other Solid Cancers
0/94 0%
3/1515 0%
Glioma
0/52 0%
4/2127 0%
Neuroendocrine Tumour
1/154 1%
0/577 0%
Other Sarcomas
0/69 0%
1/699 0%
Esophageal Squamous Cell Carcinoma
2/51 4%
1/2550 0%
Thyroid Gland Carcinoma
0/45 0%
2/1592 0%
Head and Neck Carcinoma
0/85 0%
2/1574 0%
Gastric Carcinoma
0/74 0%
2/1809 0%
Ovarian Carcinoma
0/109 0%
1/998 0%
Breast Carcinoma
0/144 0%
2/3264 0%
Prostate Carcinoma
0/13 0%
1/2105 0%
Kidney Carcinoma
0/85 0%
1/1862 0%

Mutation Distribution

Where SPRR1A is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in SPRR1A 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 123 mutations in SPRR1A

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