PPP3CB

Protein phosphatase 3 catalytic subunit beta P16298 PP2BB_HUMAN
Protein Coding Chr 10 10q22.2 Swiss-Prot reviewed Entrez 5532
Mutations
713
CL 111 · Tissue 598
Samples
203
CL 42 · Tissue 158
Peptides
176
unique mutant peptides
Transcripts
4
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
Mutations713111598
Samples20342158
Peptides17633147

Function

PPP3CB · Protein phosphatase 3 catalytic subunit beta

Enables several functions, including calmodulin binding activity; calmodulin-dependent protein phosphatase activity; and protein phosphatase 2B binding activity. Involved in calcineurin-NFAT signaling cascade; positive regulation of transcription by RNA polymerase II; and protein dephosphorylation. Located in cytoplasm. Part of calcineurin complex. Implicated in aortic valve stenosis. Biomarker of focal segmental glomerulosclerosis and schizophrenia. [provided by Alliance of Genome Resources, Apr 2022]

Isoforms & Proteins

4 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
ENST00000360663 P16298 204 146
ENST00000394829 P16298-4 178 139
ENST00000394828 P16298-3 173 135
ENST00000342558 Q5F2F8* 158 125

Gene Properties

Type
Protein Coding
Chromosome
10
Cytoband
10q22.2
Entrez ID
Aliases
CALNA2CALNBCNA2PP2Bbeta

Recurrent Mutations

All 146 amino-acid changes on canonical ENST00000360663 · 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 PPP3CB · 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 PPP3CB – 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
2/40 5%
0/0 0%
Endometrial Carcinoma
4/42 10%
14/612 2%
Melanoma
4/210 2%
26/1899 1%
Non-Small Cell Lung Carcinoma
7/304 2%
11/1390 1%
Squamous Cell Lung Carcinoma
0/57 0%
9/810 1%
Bladder Carcinoma
0/58 0%
9/956 1%
Colorectal Carcinoma
10/143 7%
18/3239 1%
Thyroid Gland Carcinoma
2/45 4%
10/1592 1%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Gastric Carcinoma
2/74 3%
11/1809 1%
Neuroendocrine Tumour
2/154 1%
2/577 0%
Other Sarcomas
2/69 3%
2/699 0%
Other Solid Cancers
0/94 0%
7/1515 0%
Burkitts Lymphoma
1/32 3%
0/196 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
11/2550 0%
Glioma
0/52 0%
6/2127 0%
Hepatocellular Carcinoma
0/46 0%
6/2210 0%
Kidney Carcinoma
0/85 0%
4/1862 0%
Breast Carcinoma
0/144 0%
7/3264 0%
Head and Neck Carcinoma
0/85 0%
3/1574 0%
Ovarian Carcinoma
1/109 1%
1/998 0%
Small Cell Lung Carcinoma
0/9 0%
1/752 0%
Pancreatic Carcinoma
2/89 2%
0/1611 0%
Biliary Tract Carcinoma
0/54 0%
1/950 0%
Prostate Carcinoma
0/13 0%
1/2105 0%
B-Lymphoblastic Leukemia
1/55 2%
0/2640 0%
B-Cell Non-Hodgkins Lymphoma
1/88 1%
0/2534 0%
Other Blood Cancers
1/61 2%
0/2725 0%

Mutation Distribution

Where PPP3CB is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in PPP3CB 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 713 mutations in PPP3CB

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