CYB561A3

Cytochrome b561 family member A3 Q8NBI2 CYAC3_HUMAN
Protein Coding Chr 11 11q12.2 Swiss-Prot reviewed Entrez 220002
Mutations
500
CL 109 · Tissue 384
Samples
140
CL 53 · Tissue 85
Peptides
128
unique mutant peptides
Transcripts
7
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
Mutations500109384
Samples1405385
Peptides12827101

Function

CYB561A3 · Cytochrome b561 family member A3

Predicted to enable transmembrane ascorbate ferrireductase activity. Predicted to be involved in cellular iron ion homeostasis. Located in nucleolus. [provided by Alliance of Genome Resources, Apr 2022]

Isoforms & Proteins

7 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
ENST00000294072 Q8NBI2 129 81
ENST00000426130 Q8NBI2-2 93 77
ENST00000447532 F5H1Q2* 92 75
ENST00000536915 Q8NBI2 89 73
ENST00000539890 F5H832* 36 30
ENST00000544118 F5H466* 32 28
ENST00000546151 F5GWH8* 29 26

Gene Properties

Type
Protein Coding
Chromosome
11
Cytoband
11q12.2
Entrez ID
Aliases
CYBASC3LCYTB

Recurrent Mutations

All 81 amino-acid changes on canonical ENST00000294072 · 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 CYB561A3 · 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 CYB561A3 – 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
Endometrial Carcinoma
2/42 5%
10/612 2%
Neuroendocrine Tumour
5/154 3%
3/577 1%
Non-Small Cell Lung Carcinoma
11/304 4%
2/1390 0%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Melanoma
4/210 2%
10/1899 1%
Ewings Sarcoma
2/63 3%
0/262 0%
Ovarian Carcinoma
2/109 2%
4/998 0%
Colorectal Carcinoma
9/143 6%
8/3239 0%
Bladder Carcinoma
2/58 3%
3/956 0%
Squamous Cell Lung Carcinoma
1/57 2%
3/810 0%
Burkitts Lymphoma
1/32 3%
0/196 0%
Prostate Carcinoma
4/13 31%
4/2105 0%
Gastric Carcinoma
3/74 4%
4/1809 0%
Head and Neck Carcinoma
0/85 0%
5/1574 0%
Esophageal Carcinoma
0/23 0%
2/769 0%
Hepatocellular Carcinoma
1/46 2%
4/2210 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Biliary Tract Carcinoma
1/54 2%
1/950 0%
B-Cell Non-Hodgkins Lymphoma
2/88 2%
3/2534 0%
Other Solid Cancers
0/94 0%
3/1515 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
5/2550 0%
Small Cell Lung Carcinoma
0/9 0%
1/752 0%
Pancreatic Carcinoma
1/89 1%
1/1611 0%
Thyroid Gland Carcinoma
0/45 0%
2/1592 0%
Non-Cancerous
0/104 0%
1/830 0%
Breast Carcinoma
0/144 0%
3/3264 0%
Glioma
0/52 0%
2/2127 0%
Kidney Carcinoma
0/85 0%
1/1862 0%
Other Blood Cancers
1/61 2%
0/2725 0%
B-Lymphoblastic Leukemia
1/55 2%
0/2640 0%

Mutation Distribution

Where CYB561A3 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in CYB561A3 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 500 mutations in CYB561A3

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