TOPAZ1

Testis and ovary specific TOPAZ 1 Q8N9V7 TOPZ1_HUMAN
Protein Coding Chr 3 3p21.31 Swiss-Prot reviewed Entrez 375337
Mutations
816
CL 199 · Tissue 609
Samples
670
CL 172 · Tissue 491
Peptides
549
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
Mutations816199609
Samples670172491
Peptides549119439

Function

TOPAZ1 · Testis and ovary specific TOPAZ 1

Predicted to be involved in spermatid development and spermatocyte division. Predicted to act upstream of or within apoptotic process; ncRNA transcription; and positive regulation of meiotic cell cycle phase transition. Predicted to be located in cytosol. [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
ENST00000309765 Q8N9V7 816 549

Gene Properties

Type
Protein Coding
Chromosome
3
Cytoband
3p21.31
Entrez ID
Aliases
C3orf77

Recurrent Mutations

All 549 amino-acid changes on canonical ENST00000309765 · 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 TOPAZ1 · 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 TOPAZ1 – 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
7/40 18%
0/0 0%
Endometrial Carcinoma
11/42 26%
35/612 6%
Oral Cavity Carcinoma
3/54 6%
0/0 0%
Acute Myeloid Leukemia
4/90 4%
0/0 0%
T-Cell Non-Hodgkins Lymphoma
1/26 4%
0/0 0%
Gastrointestinal Stromal Tumour
0/0 0%
5/133 4%
Melanoma
10/210 5%
64/1899 3%
Other Solid Cancers
5/94 5%
39/1515 3%
Small Cell Lung Carcinoma
2/9 22%
16/752 2%
Chondrosarcoma
2/14 14%
0/75 0%
Colorectal Carcinoma
19/143 13%
55/3239 2%
Hodgkins Lymphoma
0/16 0%
3/122 2%
Germ Cell Tumour
2/25 8%
2/169 1%
Hepatocellular Carcinoma
6/46 13%
38/2210 2%
Non-Small Cell Lung Carcinoma
19/304 6%
13/1390 1%
Mesothelioma
4/62 6%
0/165 0%
Gastric Carcinoma
4/74 5%
29/1809 2%
Cervical Carcinoma
0/35 0%
8/422 2%
Neuroendocrine Tumour
9/154 6%
3/577 1%
Other Sarcomas
5/69 7%
7/699 1%
Ovarian Carcinoma
10/109 9%
6/998 1%
Thyroid Gland Carcinoma
3/45 7%
20/1592 1%
Plasma Cell Myeloma
4/44 9%
0/305 0%
Squamous Cell Lung Carcinoma
6/57 11%
4/810 0%
Esophageal Squamous Cell Carcinoma
3/51 6%
27/2550 1%
Non-Cancerous
1/104 1%
9/830 1%
Breast Carcinoma
9/144 6%
26/3264 1%
Glioblastoma
1/98 1%
0/0 0%
Rhabdomyosarcoma
2/33 6%
0/171 0%
Pancreatic Carcinoma
6/89 7%
10/1611 1%

Mutation Distribution

Where TOPAZ1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in TOPAZ1 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 9 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 816 mutations in TOPAZ1

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