CBX7

Chromobox 7 O95931 CBX7_HUMAN
Protein Coding Chr 22 22q13.1 Swiss-Prot reviewed Entrez 23492
Mutations
213
CL 25 · Tissue 185
Samples
135
CL 21 · Tissue 111
Peptides
115
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
Mutations21325185
Samples13521111
Peptides11515101

Function

CBX7 · Chromobox 7

This gene encodes a protein that contains the CHROMO (CHRomatin Organization MOdifier) domain. The encoded protein is a component of the Polycomb repressive complex 1 (PRC1), and is thought to control the lifespan of several normal human cells. [provided by RefSeq, Oct 2016].

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
ENST00000216133 O95931 141 106
ENST00000401405 B0QYP2* 72 62

Gene Properties

Type
Protein Coding
Chromosome
22
Cytoband
22q13.1
Entrez ID

Recurrent Mutations

All 106 amino-acid changes on canonical ENST00000216133 · 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 CBX7 · 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 CBX7 – 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
Chronic Myelogenous Leukemia
1/25 4%
0/0 0%
T-Lymphoblastic Leukemia
1/40 2%
0/0 0%
Endometrial Carcinoma
2/42 5%
9/612 1%
Hodgkins Lymphoma
1/16 6%
1/122 1%
Germ Cell Tumour
0/25 0%
2/169 1%
Melanoma
0/210 0%
17/1899 1%
Colorectal Carcinoma
4/143 3%
20/3239 1%
Non-Cancerous
1/104 1%
4/830 0%
Other Solid Cancers
1/94 1%
7/1515 0%
Thyroid Gland Carcinoma
0/45 0%
8/1592 0%
Bladder Carcinoma
0/58 0%
5/956 1%
Osteosarcoma
1/45 2%
0/166 0%
Ovarian Carcinoma
3/109 3%
1/998 0%
Gastric Carcinoma
1/74 1%
5/1809 0%
Glioma
0/52 0%
7/2127 0%
Head and Neck Carcinoma
0/85 0%
5/1574 0%
Plasma Cell Myeloma
1/44 2%
0/305 0%
Neuroendocrine Tumour
1/154 1%
1/577 0%
Squamous Cell Lung Carcinoma
0/57 0%
2/810 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Neuroblastoma
2/87 2%
1/1331 0%
Hepatocellular Carcinoma
0/46 0%
4/2210 0%
Other Sarcomas
0/69 0%
1/699 0%
Small Cell Lung Carcinoma
0/9 0%
1/752 0%
Esophageal Carcinoma
0/23 0%
1/769 0%
Non-Small Cell Lung Carcinoma
0/304 0%
2/1390 0%
Pancreatic Carcinoma
0/89 0%
2/1611 0%
Biliary Tract Carcinoma
0/54 0%
1/950 0%
Breast Carcinoma
0/144 0%
3/3264 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
2/2550 0%

Mutation Distribution

Where CBX7 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in CBX7 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 213 mutations in CBX7

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