CSN2

Casein beta P05814 CASB_HUMAN
Protein Coding Chr 4 4q13.3 Swiss-Prot reviewed Entrez 1447
Mutations
174
CL 36 · Tissue 136
Samples
164
CL 35 · Tissue 127
Peptides
130
unique mutant peptides
Transcripts
1
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
Mutations17436136
Samples16435127
Peptides13021112

Function

CSN2 · Casein beta

This gene is a member of the beta casein family. There are two types of casein protein, beta (encoded by this gene) and kappa, both of which are secreted in human milk. Beta casein is the principal protein in human milk and the primary source of essential amino acids for a suckling infant. Beta and kappa casein proteins acting together form spherical micelles which bind within them important dietary minerals, such as calcium and phosphorous. In addition, the C-terminal 14 aa of the protein has antimicrobial activity, especially in preterm milk, displaying antibacterial activity against S. aureus and Y. enterocolitica. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2020].

Isoforms & Proteins

1 transcript · 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
ENST00000353151 P05814 174 130

Gene Properties

Type
Protein Coding
Chromosome
4
Cytoband
4q13.3
Entrez ID
Aliases
CASBPDC213

Recurrent Mutations

All 130 amino-acid changes on canonical ENST00000353151 · 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 CSN2 · 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 CSN2 – 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
Retinoblastoma
1/27 4%
1/30 3%
Melanoma
1/210 0%
36/1899 2%
Non-Small Cell Lung Carcinoma
5/304 2%
14/1390 1%
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Squamous Cell Lung Carcinoma
1/57 2%
6/810 1%
Other Solid Cancers
0/94 0%
13/1515 1%
Endometrial Carcinoma
3/42 7%
2/612 0%
Gastrointestinal Stromal Tumour
0/0 0%
1/133 1%
Neuroendocrine Tumour
4/154 3%
0/577 0%
Gastric Carcinoma
1/74 1%
7/1809 0%
Other Sarcomas
0/69 0%
3/699 0%
Colorectal Carcinoma
2/143 1%
11/3239 0%
B-Cell Non-Hodgkins Lymphoma
7/88 8%
2/2534 0%
Esophageal Squamous Cell Carcinoma
1/51 2%
7/2550 0%
Head and Neck Carcinoma
0/85 0%
5/1574 0%
Ovarian Carcinoma
2/109 2%
1/998 0%
Small Cell Lung Carcinoma
0/9 0%
2/752 0%
Hepatocellular Carcinoma
0/46 0%
4/2210 0%
Pancreatic Carcinoma
1/89 1%
2/1611 0%
Glioma
0/52 0%
4/2127 0%
Prostate Carcinoma
2/13 15%
1/2105 0%
Breast Carcinoma
2/144 1%
2/3264 0%
B-Lymphoblastic Leukemia
0/55 0%
3/2640 0%
Bladder Carcinoma
0/58 0%
1/956 0%
Biliary Tract Carcinoma
0/54 0%
1/950 0%
Neuroblastoma
1/87 1%
0/1331 0%

Mutation Distribution

Where CSN2 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in CSN2 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 2 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 174 mutations in CSN2

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