PLB1

Phospholipase B1 Q6P1J6 PLB1_HUMAN
Protein Coding Chr 2 2p23.2 Swiss-Prot reviewed Entrez 151056
Mutations
1,539
CL 251 · Tissue 1,278
Samples
722
CL 154 · Tissue 562
Peptides
604
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
Mutations1,5392511,278
Samples722154562
Peptides604120498

Function

PLB1 · Phospholipase B1

This gene encodes a membrane-associated phospholipase that displays lysophospholipase and phospholipase A2 activities through removal of sn-1 and sn-2 fatty acids of glycerophospholipids. In addition, it displays lipase and retinyl ester hydrolase activities. The encoded protein is highly conserved and is composed of a large, glycosylated extracellular domain composed of four tandem homologous domains, followed by a hydrophobic segment that anchors the enzyme to the membrane and a short C-terminal cytoplasmic tail. This gene has been identified as a candidate rheumatoid arthritis risk gene. [provided by RefSeq, Jul 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
ENST00000327757 Q6P1J6 815 574
ENST00000422425 Q6P1J6-3 724 536

Gene Properties

Type
Protein Coding
Chromosome
2
Cytoband
2p23.2
Entrez ID
Aliases
PLBPLB/LIP

Recurrent Mutations

All 574 amino-acid changes on canonical ENST00000327757 · 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 PLB1 · 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 PLB1 – 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
Chronic Myelogenous Leukemia
4/25 16%
0/0 0%
T-Lymphoblastic Leukemia
3/40 8%
0/0 0%
Gastrointestinal Stromal Tumour
0/0 0%
8/133 6%
Melanoma
10/210 5%
111/1899 6%
Endometrial Carcinoma
8/42 19%
24/612 4%
Glioblastoma
4/98 4%
0/0 0%
T-Cell Non-Hodgkins Lymphoma
1/26 4%
0/0 0%
Oral Cavity Carcinoma
2/54 4%
0/0 0%
Non-Small Cell Lung Carcinoma
13/304 4%
45/1390 3%
Squamous Cell Lung Carcinoma
6/57 11%
16/810 2%
Bladder Carcinoma
0/58 0%
25/956 3%
Colorectal Carcinoma
20/143 14%
62/3239 2%
Plasma Cell Myeloma
5/44 11%
3/305 1%
Acute Myeloid Leukemia
2/90 2%
0/0 0%
Mesothelioma
4/62 6%
1/165 1%
Gastric Carcinoma
2/74 3%
34/1809 2%
Other Solid Cancers
2/94 2%
26/1515 2%
Ovarian Carcinoma
3/109 3%
16/998 2%
Neuroendocrine Tumour
8/154 5%
4/577 1%
Small Cell Lung Carcinoma
2/9 22%
10/752 1%
Burkitts Lymphoma
3/32 9%
0/196 0%
Ewings Sarcoma
4/63 6%
0/262 0%
Kidney Carcinoma
6/85 7%
17/1862 1%
Other Sarcomas
6/69 9%
3/699 0%
Non-Cancerous
1/104 1%
9/830 1%
Thyroid Gland Carcinoma
0/45 0%
17/1592 1%
Head and Neck Carcinoma
2/85 2%
15/1574 1%
Hepatocellular Carcinoma
0/46 0%
22/2210 1%
Pancreatic Carcinoma
3/89 3%
13/1611 1%
Cervical Carcinoma
0/35 0%
4/422 1%

Mutation Distribution

Where PLB1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in PLB1 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 1,539 mutations in PLB1

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