CNN2

Calponin 2 Q99439 CNN2_HUMAN
Protein Coding Chr 19 19p13.3 Swiss-Prot reviewed Entrez 1265
Mutations
784
CL 59 · Tissue 703
Samples
182
CL 27 · Tissue 151
Peptides
152
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
Mutations78459703
Samples18227151
Peptides15225128

Function

CNN2 · Calponin 2

The protein encoded by this gene, which can bind actin, calmodulin, troponin C, and tropomyosin, may function in the structural organization of actin filaments. The encoded protein could play a role in smooth muscle contraction and cell adhesion. Several pseudogenes of this gene have been identified, and are present on chromosomes 1, 2, 3, 6, 9, 11, 13, 15, 16, 21 and 22. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jan 2015].

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
ENST00000263097 Q99439 213 127
ENST00000562958 B4DUT8* 200 120
ENST00000565096 B4DDF4* 193 113
ENST00000348419 Q99439-2 178 103

Gene Properties

Type
Protein Coding
Chromosome
19
Cytoband
19p13.3
Entrez ID

Recurrent Mutations

All 127 amino-acid changes on canonical ENST00000263097 · 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 CNN2 · 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 CNN2 – 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%
Thymic Epithelial Tumor
0/0 0%
1/39 3%
Endometrial Carcinoma
4/42 10%
6/612 1%
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Thyroid Gland Carcinoma
0/45 0%
18/1592 1%
Other Solid Cancers
1/94 1%
16/1515 1%
Melanoma
2/210 1%
20/1899 1%
Colorectal Carcinoma
7/143 5%
22/3239 1%
Bladder Carcinoma
0/58 0%
8/956 1%
Squamous Cell Lung Carcinoma
1/57 2%
4/810 0%
Mesothelioma
1/62 2%
0/165 0%
Gastric Carcinoma
0/74 0%
8/1809 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
9/2550 0%
Head and Neck Carcinoma
0/85 0%
5/1574 0%
Plasma Cell Myeloma
0/44 0%
1/305 0%
Small Cell Lung Carcinoma
0/9 0%
2/752 0%
Other Sarcomas
0/69 0%
2/699 0%
Non-Small Cell Lung Carcinoma
0/304 0%
4/1390 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Kidney Carcinoma
1/85 1%
3/1862 0%
Ovarian Carcinoma
1/109 1%
1/998 0%
Glioma
1/52 2%
3/2127 0%
Hepatocellular Carcinoma
0/46 0%
4/2210 0%
Neuroendocrine Tumour
1/154 1%
0/577 0%
Neuroblastoma
2/87 2%
0/1331 0%
Esophageal Carcinoma
0/23 0%
1/769 0%
Breast Carcinoma
0/144 0%
4/3264 0%
Pancreatic Carcinoma
0/89 0%
2/1611 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
3/2534 0%
B-Lymphoblastic Leukemia
0/55 0%
3/2640 0%

Mutation Distribution

Where CNN2 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in CNN2 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 784 mutations in CNN2

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