DKK2

Dickkopf Wnt signaling pathway inhibitor 2 Q9UBU2 DKK2_HUMAN
Protein Coding Chr 4 4q25 Swiss-Prot reviewed Entrez 27123
Mutations
963
CL 105 · Tissue 844
Samples
403
CL 62 · Tissue 333
Peptides
242
unique mutant peptides
Transcripts
3
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
Mutations963105844
Samples40362333
Peptides24242213

Function

DKK2 · Dickkopf Wnt signaling pathway inhibitor 2

This gene encodes a protein that is a member of the dickkopf family. The secreted protein contains two cysteine rich regions and is involved in embryonic development through its interactions with the Wnt signaling pathway. It can act as either an agonist or antagonist of Wnt/beta-catenin signaling, depending on the cellular context and the presence of the co-factor kremen 2. Activity of this protein is also modulated by binding to the Wnt co-receptor LDL-receptor related protein 6 (LRP6). [provided by RefSeq, Jul 2008].

Isoforms & Proteins

3 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
ENST00000285311 Q9UBU2 402 218
ENST00000510463 D6RCC2* 301 158
ENST00000513208 D6RGF1* 260 132

Gene Properties

Type
Protein Coding
Chromosome
4
Cytoband
4q25
Entrez ID
Aliases
DKK-2

Recurrent Mutations

All 218 amino-acid changes on canonical ENST00000285311 · 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 DKK2 · 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 DKK2 – 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
11/210 5%
62/1899 3%
Gastrointestinal Stromal Tumour
0/0 0%
4/133 3%
Non-Small Cell Lung Carcinoma
11/304 4%
28/1390 2%
Endometrial Carcinoma
1/42 2%
12/612 2%
Colorectal Carcinoma
12/143 8%
49/3239 2%
Small Cell Lung Carcinoma
0/9 0%
13/752 2%
Gastric Carcinoma
0/74 0%
32/1809 2%
Other Solid Cancers
2/94 2%
22/1515 1%
Osteosarcoma
2/45 4%
1/166 1%
Non-Cancerous
2/104 2%
9/830 1%
Glioblastoma
1/98 1%
0/0 0%
Rhabdomyosarcoma
0/33 0%
2/171 1%
Bladder Carcinoma
2/58 3%
7/956 1%
Esophageal Carcinoma
0/23 0%
7/769 1%
Squamous Cell Lung Carcinoma
2/57 4%
5/810 1%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Ovarian Carcinoma
1/109 1%
6/998 1%
Germ Cell Tumour
0/25 0%
1/169 1%
Burkitts Lymphoma
1/32 3%
0/196 0%
Prostate Carcinoma
0/13 0%
9/2105 0%
Head and Neck Carcinoma
2/85 2%
5/1574 0%
Glioma
0/52 0%
9/2127 0%
Hepatocellular Carcinoma
0/46 0%
9/2210 0%
Other Sarcomas
0/69 0%
3/699 0%
Ewings Sarcoma
0/63 0%
1/262 0%
Thyroid Gland Carcinoma
0/45 0%
5/1592 0%
Biliary Tract Carcinoma
0/54 0%
3/950 0%
Pancreatic Carcinoma
0/89 0%
5/1611 0%
Plasma Cell Myeloma
0/44 0%
1/305 0%

Mutation Distribution

Where DKK2 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in DKK2 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 963 mutations in DKK2

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