CYP4F22
Ultra-long-chain fatty acid omega-hydroxylase
Also known as: CP4FN_HUMAN, FLJ39501
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q6NT55
- Gene
- CYP4F22
- Ensembl
- ENSG00000171954
- Chromosome
- 19
- Canonical length
- 531 aa
- Protein class
- Disease related genes, Enzymes, Human disease related genes, Metabolic proteins, Potential drug targets, Predicted membrane proteins
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 gene is part of a cluster of cytochrome P450 genes on chromosome 19 and encodes an enzyme thought to play a role in the 12(R)-lipoxygenase pathway. Mutations in this gene are the cause of ichthyosis lamellar type 3. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
531 residues, UniProt reviewed canonical sequence.
>Q6NT55|CYP4F22
1 MLPITDRLLH LLGLEKTAFR IYAVSTLLLF LLFFLFRLLL RFLRLCRSFY ITCRRLRCFP
61 QPPRRNWLLG HLGMYLPNEA GLQDEKKVLD NMHHVLLVWM GPVLPLLVLV HPDYIKPLLG
121 ASAAIAPKDD LFYGFLKPWL GDGLLLSKGD KWSRHRRLLT PAFHFDILKP YMKIFNQSAD
181 IMHAKWRHLA EGSAVSLDMF EHISLMTLDS LQKCVFSYNS NCQEKMSDYI SAIIELSALS
241 VRRQYRLHHY LDFIYYRSAD GRRFRQACDM VHHFTTEVIQ ERRRALRQQG AEAWLKAKQG
301 KTLDFIDVLL LARDEDGKEL SDEDIRAEAD TFMFEGHDTT SSGISWMLFN LAKYPEYQEK
361 CREEIQEVMK GRELEELEWD DLTQLPFTTM CIKESLRQYP PVTLVSRQCT EDIKLPDGRI
421 IPKGIICLVS IYGTHHNPTV WPDSKVYNPY RFDPDNPQQR SPLAYVPFSA GPRNCIGQSF
481 AMAELRVVVA LTLLRFRLSV DRTRKVRRKP ELILRTENGL WLKVEPLPPR ALocalizationUniProt · AlphaFold · HPA
Whether an antibody against CYP4F22 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
- 1
- Mean surface accessibility (rSASA)
- 0.24
- Highest tissue expression
- 56 nTPM
Expression across tissuesHPA
Tissue
- skin: 56 nTPM
- vagina: 22 nTPM
- esophagus: 19 nTPM
- cervix: 16 nTPM
- prostate: 7.4 nTPM
- liver: 6.9 nTPM
Single-cell type
- esophageal apical cells: 112 nCPM
- prostatic glandular cells: 44 nCPM
- urothelial cells: 38 nCPM
- esophageal suprabasal cells: 31 nCPM
- suprabasal keratinocytes: 30 nCPM
- breast hormone-responsive cells: 24 nCPM
Immune cell
- non-classical monocyte: 14 nTPM
- intermediate monocyte: 6.1 nTPM
- MAIT T-cell: 4.3 nTPM
- gdT-cell: 1.7 nTPM
- memory CD8 T-cell: 1.5 nTPM
- NK-cell: 1.1 nTPM
Brain region
- midbrain: 0.9 nTPM
- pons: 0.6 nTPM
- cerebral cortex: 0.3 nTPM
- medulla oblongata: 0.2 nTPM
- hypothalamus: 0.1 nTPM
- amygdala: 0 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about CYP4F22.
Disease | AllUniProt
Conditions CYP4F22 is implicated in, by any mechanism.
- Ichthyosis, congenital, autosomal recessive 5 (ARCI5) MIM:604777
Disease | GeneticClinVar
56 pathogenic / likely-pathogenic of 313 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Autosomal recessive congenital ichthyosis 5
- Lamellar ichthyosis
- CYP4F22-related disorder
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)
- 0.78
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.4
- DepMap mean gene effect
- -0.05
- 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
Molecular functions
- heme binding
- iron ion binding
- monooxygenase activity
- oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads CYP4F22 as an antibody target. Whether an autoantibody or antibody against CYP4F22 could matter depends on whether native CYP4F22 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
CYP4F22 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 CYP4F22 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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