C1QBP

Complement C1q binding protein Q07021 C1QBP_HUMAN
Protein Coding Chr 17 17p13.2 Swiss-Prot reviewed Entrez 708
Mutations
112
CL 17 · Tissue 92
Samples
67
CL 11 · Tissue 53
Peptides
57
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
Mutations1121792
Samples671153
Peptides57847

Function

C1QBP · Complement C1q binding protein

The human complement subcomponent C1q associates with C1r and C1s in order to yield the first component of the serum complement system. The protein encoded by this gene is known to bind to the globular heads of C1q molecules and inhibit C1 activation. This protein has also been identified as the p32 subunit of pre-mRNA splicing factor SF2, as well as a hyaluronic acid-binding protein. [provided by RefSeq, Jul 2008].

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
ENST00000225698 Q07021 68 53
ENST00000574444 I3L3B0* 44 38

Gene Properties

Type
Protein Coding
Chromosome
17
Cytoband
17p13.2
Entrez ID
Aliases
COXPD33GC1QBPHABP1SF2AP32SF2p32gC1Q-R

Recurrent Mutations

All 53 amino-acid changes on canonical ENST00000225698 · 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 C1QBP · 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 C1QBP – 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
1/40 2%
0/0 0%
Germ Cell Tumour
0/25 0%
1/169 1%
Melanoma
2/210 1%
7/1899 0%
Hepatocellular Carcinoma
0/46 0%
8/2210 0%
Endometrial Carcinoma
0/42 0%
2/612 0%
Biliary Tract Carcinoma
0/54 0%
3/950 0%
Neuroendocrine Tumour
2/154 1%
0/577 0%
Colorectal Carcinoma
2/143 1%
7/3239 0%
Small Cell Lung Carcinoma
0/9 0%
2/752 0%
Esophageal Carcinoma
0/23 0%
2/769 0%
Squamous Cell Lung Carcinoma
1/57 2%
1/810 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Thyroid Gland Carcinoma
0/45 0%
3/1592 0%
Ovarian Carcinoma
2/109 2%
0/998 0%
Glioma
0/52 0%
3/2127 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
3/2550 0%
Other Solid Cancers
0/94 0%
2/1515 0%
Head and Neck Carcinoma
0/85 0%
2/1574 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
3/2534 0%
Gastric Carcinoma
0/74 0%
2/1809 0%
Bladder Carcinoma
0/58 0%
1/956 0%
Breast Carcinoma
1/144 1%
1/3264 0%
Kidney Carcinoma
0/85 0%
1/1862 0%
Other Blood Cancers
0/61 0%
1/2725 0%

Mutation Distribution

Where C1QBP is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in C1QBP 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 112 mutations in C1QBP

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