DDAH1

Dimethylarginine dimethylaminohydrolase 1 O94760 DDAH1_HUMAN
Protein Coding Chr 1 1p22.3 Swiss-Prot reviewed Entrez 23576
Mutations
269
CL 23 · Tissue 242
Samples
111
CL 19 · Tissue 90
Peptides
99
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
Mutations26923242
Samples1111990
Peptides991584

Function

DDAH1 · Dimethylarginine dimethylaminohydrolase 1

This gene belongs to the dimethylarginine dimethylaminohydrolase (DDAH) gene family. The encoded enzyme plays a role in nitric oxide generation by regulating cellular concentrations of methylarginines, which in turn inhibit nitric oxide synthase activity. [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
ENST00000284031 O94760 119 94
ENST00000426972 O94760-2 75 63
ENST00000633113 A0A0J9YY78* 75 63

Gene Properties

Type
Protein Coding
Chromosome
1
Cytoband
1p22.3
Entrez ID
Aliases
DDAHDDAH-1DDAHIHEL-S-16

Recurrent Mutations

All 94 amino-acid changes on canonical ENST00000284031 · 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 DDAH1 · 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 DDAH1 – 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-Cell Non-Hodgkins Lymphoma
2/26 8%
0/0 0%
Glioblastoma
3/98 3%
0/0 0%
T-Lymphoblastic Leukemia
1/40 2%
0/0 0%
Endometrial Carcinoma
1/42 2%
10/612 2%
Germ Cell Tumour
1/25 4%
1/169 1%
Melanoma
1/210 0%
13/1899 1%
Bladder Carcinoma
0/58 0%
6/956 1%
Plasma Cell Myeloma
0/44 0%
2/305 1%
Thyroid Gland Carcinoma
0/45 0%
9/1592 1%
Rhabdomyosarcoma
0/33 0%
1/171 1%
Small Cell Lung Carcinoma
0/9 0%
3/752 0%
Head and Neck Carcinoma
1/85 1%
5/1574 0%
Non-Small Cell Lung Carcinoma
3/304 1%
3/1390 0%
Gastric Carcinoma
2/74 3%
4/1809 0%
Colorectal Carcinoma
0/143 0%
8/3239 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
6/2550 0%
Squamous Cell Lung Carcinoma
1/57 2%
1/810 0%
Hepatocellular Carcinoma
0/46 0%
4/2210 0%
Ovarian Carcinoma
0/109 0%
2/998 0%
Glioma
0/52 0%
3/2127 0%
Other Sarcomas
0/69 0%
1/699 0%
Other Solid Cancers
0/94 0%
2/1515 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
3/2534 0%
Non-Cancerous
0/104 0%
1/830 0%
B-Lymphoblastic Leukemia
2/55 4%
1/2640 0%
Breast Carcinoma
1/144 1%
2/3264 0%
Kidney Carcinoma
0/85 0%
1/1862 0%

Mutation Distribution

Where DDAH1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in DDAH1 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 269 mutations in DDAH1

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