ALOX12
Polyunsaturated fatty acid lipoxygenase ALOX12
Also known as: 12S-LOX, LOX12_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P18054
- Gene
- ALOX12
- Ensembl
- ENSG00000108839
- Chromosome
- 17
- Canonical length
- 663 aa
- Protein class
- Disease related genes, Enzymes, Metabolic proteins, Potential drug targets, Predicted intracellular proteins
- Subcellular location
- Cytosol
OverviewNCBI Gene
This gene encodes a member of the lipoxygenase family of proteins. The encoded enzyme acts on different polyunsaturated fatty acid substrates to generate bioactive lipid mediators including eicosanoids and lipoxins. The encoded enzyme and its reaction products have been shown to regulate platelet function. Elevated expression of this gene has been observed in pancreatic islets derived from human diabetes patients. Allelic variants in this gene may be associated with susceptibility to toxoplasmosis. Multiple pseudogenes of this gene have been identified in the human genome. [provided by RefSeq, Aug 2017]
Canonical amino-acid sequenceUniProt
663 residues, UniProt reviewed canonical sequence.
>P18054|ALOX12
1 MGRYRIRVAT GAWLFSGSYN RVQLWLVGTR GEAELELQLR PARGEEEEFD HDVAEDLGLL
61 QFVRLRKHHW LVDDAWFCDR ITVQGPGACA EVAFPCYRWV QGEDILSLPE GTARLPGDNA
121 LDMFQKHREK ELKDRQQIYC WATWKEGLPL TIAADRKDDL PPNMRFHEEK RLDFEWTLKA
181 GALEMALKRV YTLLSSWNCL EDFDQIFWGQ KSALAEKVRQ CWQDDELFSY QFLNGANPML
241 LRRSTSLPSR LVLPSGMEEL QAQLEKELQN GSLFEADFIL LDGIPANVIR GEKQYLAAPL
301 VMLKMEPNGK LQPMVIQIQP PNPSSPTPTL FLPSDPPLAW LLAKSWVRNS DFQLHEIQYH
361 LLNTHLVAEV IAVATMRCLP GLHPIFKFLI PHIRYTMEIN TRARTQLISD GGIFDKAVST
421 GGGGHVQLLR RAAAQLTYCS LCPPDDLADR GLLGLPGALY AHDALRLWEI IARYVEGIVH
481 LFYQRDDIVK GDPELQAWCR EITEVGLCQA QDRGFPVSFQ SQSQLCHFLT MCVFTCTAQH
541 AAINQGQLDW YAWVPNAPCT MRMPPPTTKE DVTMATVMGS LPDVRQACLQ MAISWHLSRR
601 QPDMVPLGHH KEKYFSGPKP KAVLNQFRTD LEKLEKEITA RNEQLDWPYE YLKPSCIENS
661 VTILocalizationUniProt · AlphaFold · HPA
Whether an antibody against ALOX12 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.21
- Highest tissue expression
- 96 nTPM
Expression across tissuesHPA
Tissue
- vagina: 96 nTPM
- cervix: 79 nTPM
- esophagus: 48 nTPM
- skin: 21 nTPM
- salivary gland: 17 nTPM
- bone marrow: 4.4 nTPM
Single-cell type
- platelets: 364 nCPM
- esophageal apical cells: 321 nCPM
- megakaryocytes: 266 nCPM
- megakaryocyte progenitors: 51 nCPM
- epicardial cells: 41 nCPM
- suprabasal keratinocytes: 36 nCPM
Immune cell
- total PBMC: 14 nTPM
- neutrophil: 4.5 nTPM
- basophil: 2.1 nTPM
- eosinophil: 1.8 nTPM
- plasmacytoid DC: 1.3 nTPM
- memory B-cell: 1.1 nTPM
Brain region
- white matter: 16 nTPM
- cerebral cortex: 13 nTPM
- medulla oblongata: 13 nTPM
- thalamus: 12 nTPM
- basal ganglia: 12 nTPM
- pons: 12 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about ALOX12.
Disease | AllUniProt
Conditions ALOX12 is implicated in, by any mechanism.
- Esophageal cancer (ESCR) MIM:133239
- Colorectal cancer (CRC) MIM:114500
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 1.04
- gnomAD pLI
- 0
- gnomAD missense Z
- 1.27
- DepMap mean gene effect
- 0.18
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- arachidonate metabolic process
- establishment of skin barrier
- fatty acid oxidation
- hepoxilin biosynthetic process
- linoleic acid metabolic process
- lipid metabolic process
- lipid oxidation
- lipoxin A4 biosynthetic process
- lipoxygenase pathway
- negative regulation of muscle cell apoptotic process
- negative regulation of platelet aggregation
- superoxide anion generation
- leukotriene A4 metabolic process
- lipoxin B4 biosynthetic process
- unsaturated fatty acid metabolic process
Molecular functions
- arachidonate 12(S)-lipoxygenase activity
- arachidonate 15-lipoxygenase activity
- iron ion binding
- linoleate 13S-lipoxygenase activity
- hepoxilin-epoxide hydrolase activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of ALOX12 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads ALOX12 as an antibody target. Whether an autoantibody or antibody against ALOX12 could matter depends on whether native ALOX12 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
ALOX12 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label ALOX12 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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