ST8SIA5

ST8 alpha-N-acetyl-neuraminide alpha-2,8-sialyltransferase 5 O15466 SIA8E_HUMAN
Protein Coding Chr 18 18q21.1 Swiss-Prot reviewed Entrez 29906
Mutations
831
CL 111 · Tissue 699
Samples
293
CL 57 · Tissue 231
Peptides
236
unique mutant peptides
Transcripts
3
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
Mutations831111699
Samples29357231
Peptides23640195

Function

ST8SIA5 · ST8 alpha-N-acetyl-neuraminide alpha-2,8-sialyltransferase 5

The protein encoded by this gene is a type II membrane protein that may be present in the Golgi apparatus. The encoded protein, which is a member of glycosyltransferase family 29, may be involved in the synthesis of gangliosides GD1c, GT1a, GQ1b, and GT3 from GD1a, GT1b, GM1b, and GD3, respectively. [provided by RefSeq, Jul 2008].

Isoforms & Proteins

3 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
ENST00000315087 O15466 306 205
ENST00000538168 O15466-2 274 195
ENST00000536490 F5H8D1* 251 181

Gene Properties

Type
Protein Coding
Chromosome
18
Cytoband
18q21.1
Entrez ID
Aliases
SIAT8-ESIAT8EST8SiaV

Recurrent Mutations

All 205 amino-acid changes on canonical ENST00000315087 · 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 ST8SIA5 · 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 ST8SIA5 – 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
T-Lymphoblastic Leukemia
4/40 10%
0/0 0%
T-Cell Non-Hodgkins Lymphoma
2/26 8%
0/0 0%
Melanoma
10/210 5%
52/1899 3%
Endometrial Carcinoma
1/42 2%
14/612 2%
Colorectal Carcinoma
10/143 7%
41/3239 1%
Hodgkins Lymphoma
2/16 12%
0/122 0%
Cervical Carcinoma
0/35 0%
6/422 1%
Non-Small Cell Lung Carcinoma
6/304 2%
16/1390 1%
Gastric Carcinoma
1/74 1%
22/1809 1%
Esophageal Carcinoma
0/23 0%
6/769 1%
Squamous Cell Lung Carcinoma
0/57 0%
6/810 1%
Other Solid Cancers
0/94 0%
11/1515 1%
Head and Neck Carcinoma
1/85 1%
10/1574 1%
Biliary Tract Carcinoma
1/54 2%
4/950 0%
Bladder Carcinoma
2/58 3%
2/956 0%
Pancreatic Carcinoma
2/89 2%
4/1611 0%
Non-Cancerous
0/104 0%
3/830 0%
Breast Carcinoma
2/144 1%
9/3264 0%
B-Cell Non-Hodgkins Lymphoma
5/88 6%
3/2534 0%
Ewings Sarcoma
0/63 0%
1/262 0%
Plasma Cell Myeloma
0/44 0%
1/305 0%
Neuroendocrine Tumour
1/154 1%
1/577 0%
Ovarian Carcinoma
1/109 1%
2/998 0%
Other Sarcomas
1/69 1%
1/699 0%
Kidney Carcinoma
1/85 1%
4/1862 0%
Small Cell Lung Carcinoma
1/9 11%
1/752 0%
Glioma
2/52 4%
3/2127 0%
Prostate Carcinoma
1/13 8%
3/2105 0%
Hepatocellular Carcinoma
0/46 0%
4/2210 0%
Thyroid Gland Carcinoma
0/45 0%
2/1592 0%

Mutation Distribution

Where ST8SIA5 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in ST8SIA5 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 831 mutations in ST8SIA5

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