APOL4

Apolipoprotein L4 Q9BPW4 APOL4_HUMAN
Protein Coding Chr 22 22q12.3 Swiss-Prot reviewed Entrez 80832
Mutations
433
CL 65 · Tissue 359
Samples
146
CL 26 · Tissue 116
Peptides
135
unique mutant peptides
Transcripts
5
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
Mutations43365359
Samples14626116
Peptides13530106

Function

APOL4 · Apolipoprotein L4

This gene encodes a member of the apolipoprotein L family. The encoded protein may play a role in lipid exchange and transport throughout the body, as well as in reverse cholesterol transport from peripheral cells to the liver. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2020].

Isoforms & Proteins

5 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
ENST00000352371 Q9BPW4 143 104
ENST00000332987 Q9BPW4-2 129 100
ENST00000616056 Q9BPW4-2 128 99
ENST00000397275 F6UZE7* 22 20
ENST00000683024 Q9BPW4-2 11 11

Gene Properties

Type
Protein Coding
Chromosome
22
Cytoband
22q12.3
Entrez ID
Aliases
APOL-IVAPOLIV

Recurrent Mutations

All 104 amino-acid changes on canonical ENST00000352371 · 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 APOL4 · 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 APOL4 – 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
3/210 1%
23/1899 1%
Endometrial Carcinoma
1/42 2%
6/612 1%
Other Solid Cancers
1/94 1%
15/1515 1%
Adrenocortical Carcinoma
0/3 0%
1/112 1%
Colorectal Carcinoma
4/143 3%
17/3239 1%
Non-Small Cell Lung Carcinoma
2/304 1%
8/1390 1%
Plasma Cell Myeloma
1/44 2%
1/305 0%
Squamous Cell Lung Carcinoma
0/57 0%
4/810 0%
Neuroendocrine Tumour
3/154 2%
0/577 0%
Bladder Carcinoma
0/58 0%
4/956 0%
Small Cell Lung Carcinoma
0/9 0%
3/752 0%
Esophageal Carcinoma
0/23 0%
3/769 0%
Head and Neck Carcinoma
1/85 1%
5/1574 0%
Biliary Tract Carcinoma
1/54 2%
2/950 0%
Gastric Carcinoma
0/74 0%
5/1809 0%
Other Sarcomas
0/69 0%
2/699 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Hepatocellular Carcinoma
0/46 0%
4/2210 0%
Esophageal Squamous Cell Carcinoma
1/51 2%
3/2550 0%
Prostate Carcinoma
1/13 8%
2/2105 0%
Neuroblastoma
0/87 0%
2/1331 0%
Breast Carcinoma
2/144 1%
2/3264 0%
Thyroid Gland Carcinoma
1/45 2%
1/1592 0%
Non-Cancerous
0/104 0%
1/830 0%
Ovarian Carcinoma
1/109 1%
0/998 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
2/2534 0%
Pancreatic Carcinoma
0/89 0%
1/1611 0%
Kidney Carcinoma
0/85 0%
1/1862 0%
Other Blood Cancers
0/61 0%
1/2725 0%

Mutation Distribution

Where APOL4 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in APOL4 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 433 mutations in APOL4

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