PCBP3

Poly(rC) binding protein 3 P57721 PCBP3_HUMAN
Protein Coding Chr 21 21q22.3 Swiss-Prot reviewed Entrez 54039
Mutations
1,188
CL 120 · Tissue 1,043
Samples
225
CL 34 · Tissue 184
Peptides
198
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
Mutations1,1881201,043
Samples22534184
Peptides19823175

Function

PCBP3 · Poly(rC) binding protein 3

This gene encodes a member of the KH-domain protein subfamily. Proteins of this subfamily, also referred to as alpha-CPs, bind to RNA with a specificity for C-rich pyrimidine regions. Alpha-CPs play important roles in post-transcriptional activities and have different cellular distributions. The protein encoded by this gene lacks the nuclear localization signals found in other subfamily members. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jan 2017].

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
ENST00000400304 E9PFP8* 207 148
ENST00000449640 E9PFP8* 207 148
ENST00000400314 P57721 200 145
ENST00000400309 P57721-4 197 142
ENST00000400308 P57721-2 183 131
ENST00000400310 P57721-5 179 133
ENST00000681687 P57721 15 13

Gene Properties

Type
Protein Coding
Chromosome
21
Cytoband
21q22.3
Entrez ID
Aliases
ALPHA-CP3PCBP3-OT1PCBP3OT

Recurrent Mutations

All 145 amino-acid changes on canonical ENST00000400314 · 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 PCBP3 · 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 PCBP3 – 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
3/40 8%
0/0 0%
Melanoma
6/210 3%
39/1899 2%
Endometrial Carcinoma
1/42 2%
12/612 2%
Colorectal Carcinoma
6/143 4%
32/3239 1%
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Non-Small Cell Lung Carcinoma
9/304 3%
9/1390 1%
Germ Cell Tumour
0/25 0%
2/169 1%
Mesothelioma
2/62 3%
0/165 0%
Neuroendocrine Tumour
2/154 1%
4/577 1%
Other Solid Cancers
0/94 0%
10/1515 1%
Biliary Tract Carcinoma
0/54 0%
6/950 1%
Pancreatic Carcinoma
0/89 0%
10/1611 1%
Gastric Carcinoma
1/74 1%
10/1809 1%
Plasma Cell Myeloma
1/44 2%
1/305 0%
Hepatocellular Carcinoma
0/46 0%
12/2210 1%
Osteosarcoma
0/45 0%
1/166 1%
Non-Cancerous
0/104 0%
4/830 0%
Head and Neck Carcinoma
0/85 0%
7/1574 0%
Bladder Carcinoma
0/58 0%
4/956 0%
Meningioma
0/3 0%
1/252 0%
Thyroid Gland Carcinoma
0/45 0%
6/1592 0%
Small Cell Lung Carcinoma
0/9 0%
2/752 0%
Other Sarcomas
0/69 0%
2/699 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Glioma
0/52 0%
3/2127 0%
Esophageal Carcinoma
0/23 0%
1/769 0%
Squamous Cell Lung Carcinoma
0/57 0%
1/810 0%
B-Lymphoblastic Leukemia
0/55 0%
3/2640 0%
Ovarian Carcinoma
1/109 1%
0/998 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
2/2534 0%

Mutation Distribution

Where PCBP3 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in PCBP3 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 1,188 mutations in PCBP3

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