CYP2J2
Cytochrome P450 2J2
Also known as: CP2J2_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P51589
- Gene
- CYP2J2
- Ensembl
- ENSG00000134716
- Chromosome
- 1
- Canonical length
- 502 aa
- Protein class
- Enzymes, Metabolic proteins, Predicted intracellular proteins
- Secretome location
- Intracellular and membrane
OverviewNCBI Gene
This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. This protein localizes to the endoplasmic reticulum and is thought to be the predominant enzyme responsible for epoxidation of endogenous arachidonic acid in cardiac tissue. Multiple transcript variants have been found for this gene. [provided by RefSeq, Jan 2016]
Canonical amino-acid sequenceUniProt
502 residues, UniProt reviewed canonical sequence.
>P51589|CYP2J2
1 MLAAMGSLAA ALWAVVHPRT LLLGTVAFLL AADFLKRRRP KNYPPGPWRL PFLGNFFLVD
61 FEQSHLEVQL FVKKYGNLFS LELGDISAVL ITGLPLIKEA LIHMDQNFGN RPVTPMREHI
121 FKKNGLIMSS GQAWKEQRRF TLTALRNFGL GKKSLEERIQ EEAQHLTEAI KEENGQPFDP
181 HFKINNAVSN IICSITFGER FEYQDSWFQQ LLKLLDEVTY LEASKTCQLY NVFPWIMKFL
241 PGPHQTLFSN WKKLKLFVSH MIDKHRKDWN PAETRDFIDA YLKEMSKHTG NPTSSFHEEN
301 LICSTLDLFF AGTETTSTTL RWALLYMALY PEIQEKVQAE IDRVIGQGQQ PSTAARESMP
361 YTNAVIHEVQ RMGNIIPLNV PREVTVDTTL AGYHLPKGTM ILTNLTALHR DPTEWATPDT
421 FNPDHFLENG QFKKREAFMP FSIGKRACLG EQLARTELFI FFTSLMQKFT FRPPNNEKLS
481 LKFRMGITIS PVSHRLCAVP QVLocalizationUniProt · AlphaFold · HPA
Whether an antibody against CYP2J2 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
- Other membrane
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.24
- Highest tissue expression
- 137 nTPM
Expression across tissuesHPA
Tissue
- liver: 137 nTPM
- heart muscle: 84 nTPM
- small intestine: 79 nTPM
- duodenum: 32 nTPM
- skeletal muscle: 24 nTPM
- placenta: 21 nTPM
Single-cell type
- syncytiotrophoblasts: 312 nCPM
- cardiomyocytes: 306 nCPM
- esophageal apical cells: 161 nCPM
- enterocytes: 150 nCPM
- bergmann glia: 146 nCPM
- cytotrophoblasts: 135 nCPM
Immune cell
- naive CD4 T-cell: 2.9 nTPM
- naive CD8 T-cell: 2.6 nTPM
- memory B-cell: 0.8 nTPM
- MAIT T-cell: 0.6 nTPM
- plasmacytoid DC: 0.6 nTPM
- naive B-cell: 0.4 nTPM
Brain region
- thalamus: 42 nTPM
- cerebellum: 33 nTPM
- basal ganglia: 29 nTPM
- white matter: 28 nTPM
- midbrain: 27 nTPM
- medulla oblongata: 27 nTPM
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)
- 1.39
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.14
- DepMap mean gene effect
- 0
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- epoxygenase P450 pathway
- fatty acid metabolic process
- icosanoid metabolic process
- linoleic acid metabolic process
- organic acid metabolic process
- regulation of heart contraction
- xenobiotic metabolic process
Molecular functions
- arachidonate 11,12-epoxygenase activity
- arachidonate 14,15-epoxygenase activity
- arachidonate epoxygenase activity
- heme binding
- hydroperoxy icosatetraenoate isomerase activity
- iron ion binding
- isomerase activity
- linoleic acid epoxygenase activity
- monooxygenase activity
- oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen
- arachidonate 5,6-epoxygenase activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Cytochrome P450
- Cytochrome P450, E-class, group I
- Cytochrome P450, conserved site
- Cytochrome P450 superfamily
- Cytochrome P450 family 2
- Cytochrome P450
- Cytochrome P450, E-class, group I, CYP2J-like
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads CYP2J2 as an antibody target. Whether an autoantibody or antibody against CYP2J2 could matter depends on whether native CYP2J2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
CYP2J2 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 CYP2J2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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