ATG4A

Autophagy related 4A cysteine peptidase Q8WYN0 ATG4A_HUMAN
Protein Coding Chr X Xq22.3 Swiss-Prot reviewed Entrez 115201
Mutations
309
CL 62 · Tissue 241
Samples
181
CL 41 · Tissue 136
Peptides
139
unique mutant peptides
Transcripts
2
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
Mutations30962241
Samples18141136
Peptides13928119

Function

ATG4A · Autophagy related 4A cysteine peptidase

Autophagy is the process by which endogenous proteins and damaged organelles are destroyed intracellularly. Autophagy is postulated to be essential for cell homeostasis and cell remodeling during differentiation, metamorphosis, non-apoptotic cell death, and aging. Reduced levels of autophagy have been described in some malignant tumors, and a role for autophagy in controlling the unregulated cell growth linked to cancer has been proposed. This gene encodes a member of the autophagin protein family. The encoded protein is also designated as a member of the C-54 family of cysteine proteases. [provided by RefSeq, Mar 2016].

Isoforms & Proteins

2 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
ENST00000372232 Q8WYN0 189 132
ENST00000345734 Q8WYN0-2 120 95

Gene Properties

Type
Protein Coding
Chromosome
X
Cytoband
Xq22.3
Entrez ID
Aliases
APG4AAUTL2HsAPG4A

Recurrent Mutations

All 132 amino-acid changes on canonical ENST00000372232 · 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 ATG4A · 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 ATG4A – 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
Endometrial Carcinoma
2/42 5%
16/612 3%
Hodgkins Lymphoma
2/16 12%
0/122 0%
Non-Small Cell Lung Carcinoma
6/304 2%
11/1390 1%
Melanoma
1/210 0%
18/1899 1%
Colorectal Carcinoma
11/143 8%
19/3239 1%
Gastrointestinal Stromal Tumour
0/0 0%
1/133 1%
Squamous Cell Lung Carcinoma
2/57 4%
3/810 0%
Germ Cell Tumour
0/25 0%
1/169 1%
Bladder Carcinoma
1/58 2%
4/956 0%
Gastric Carcinoma
0/74 0%
9/1809 0%
Non-Cancerous
1/104 1%
3/830 0%
Glioma
0/52 0%
9/2127 0%
Small Cell Lung Carcinoma
0/9 0%
3/752 0%
Ovarian Carcinoma
3/109 3%
1/998 0%
Hepatocellular Carcinoma
0/46 0%
8/2210 0%
Thyroid Gland Carcinoma
0/45 0%
5/1592 0%
Biliary Tract Carcinoma
0/54 0%
3/950 0%
Plasma Cell Myeloma
0/44 0%
1/305 0%
B-Cell Non-Hodgkins Lymphoma
2/88 2%
5/2534 0%
Other Sarcomas
0/69 0%
2/699 0%
Esophageal Carcinoma
1/23 4%
1/769 0%
Breast Carcinoma
2/144 1%
6/3264 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Neuroblastoma
3/87 3%
0/1331 0%
Prostate Carcinoma
2/13 15%
2/2105 0%
Pancreatic Carcinoma
2/89 2%
1/1611 0%
Other Solid Cancers
0/94 0%
2/1515 0%
Head and Neck Carcinoma
0/85 0%
2/1574 0%
B-Lymphoblastic Leukemia
0/55 0%
2/2640 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
1/2550 0%

Mutation Distribution

Where ATG4A is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in ATG4A 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 309 mutations in ATG4A

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