LPO

Lactoperoxidase P22079 PERL_HUMAN
Protein Coding Chr 17 17q22 Swiss-Prot reviewed Entrez 4025
Mutations
1,591
CL 187 · Tissue 1,388
Samples
424
CL 71 · Tissue 348
Peptides
323
unique mutant peptides
Transcripts
4
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
Mutations1,5911871,388
Samples42471348
Peptides32350281

Function

LPO · Lactoperoxidase

This gene encodes a member of the peroxidase family of proteins. The encoded preproprotein is proteolytically processed to generate the mature enzyme. Following its secretion from salivary, mammary, and other mucosal glands, this enzyme catalyzes the generation of the antimicrobial substance hypothiocyanous acid. This gene is present in a gene cluster on chromosome 17. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed. [provided by RefSeq, Jan 2016].

Isoforms & Proteins

4 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
ENST00000262290 P22079 452 314
ENST00000543544 F5H386* 385 281
ENST00000421678 P22079-2 377 275
ENST00000582328 P22079-2 377 275

Gene Properties

Type
Protein Coding
Chromosome
17
Cytoband
17q22
Entrez ID
Aliases
SPO

Recurrent Mutations

All 314 amino-acid changes on canonical ENST00000262290 · 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 LPO · 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 LPO – 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
Oral Cavity Carcinoma
2/54 4%
0/0 0%
Melanoma
13/210 6%
60/1899 3%
Endometrial Carcinoma
2/42 5%
17/612 3%
T-Lymphoblastic Leukemia
1/40 2%
0/0 0%
Gastrointestinal Stromal Tumour
0/0 0%
3/133 2%
Other Solid Cancers
2/94 2%
27/1515 2%
Mesothelioma
4/62 6%
0/165 0%
Gastric Carcinoma
0/74 0%
31/1809 2%
Neuroendocrine Tumour
4/154 3%
8/577 1%
Non-Small Cell Lung Carcinoma
8/304 3%
19/1390 1%
Colorectal Carcinoma
12/143 8%
41/3239 1%
Small Cell Lung Carcinoma
2/9 22%
8/752 1%
Ewings Sarcoma
4/63 6%
0/262 0%
Bladder Carcinoma
1/58 2%
11/956 1%
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Germ Cell Tumour
0/25 0%
2/169 1%
Cervical Carcinoma
1/35 3%
3/422 1%
Esophageal Carcinoma
0/23 0%
7/769 1%
Ovarian Carcinoma
1/109 1%
8/998 1%
Squamous Cell Lung Carcinoma
0/57 0%
7/810 1%
Hepatocellular Carcinoma
2/46 4%
14/2210 1%
Non-Cancerous
0/104 0%
6/830 1%
Glioma
0/52 0%
13/2127 1%
Thyroid Gland Carcinoma
0/45 0%
9/1592 1%
Biliary Tract Carcinoma
0/54 0%
5/950 1%
Esophageal Squamous Cell Carcinoma
2/51 4%
11/2550 0%
Rhabdomyosarcoma
0/33 0%
1/171 1%
Breast Carcinoma
1/144 1%
11/3264 0%
Head and Neck Carcinoma
0/85 0%
5/1574 0%
Neuroblastoma
1/87 1%
3/1331 0%

Mutation Distribution

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

Mutation counts by tissue
Mutation Distribution

How many mutations in LPO 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 39 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 1,591 mutations in LPO

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