CYP24A1
1,25-dihydroxyvitamin D(3) 24-hydroxylase, mitochondrial
Also known as: CP24, CP24A_HUMAN, CYP24, lncBCAS1-4_1, P450-CC24
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q07973
- Gene
- CYP24A1
- Ensembl
- ENSG00000019186
- Chromosome
- 20
- Canonical length
- 514 aa
- Protein class
- Disease related genes, Enzymes, Human disease related genes, Metabolic proteins, Potential drug targets, Predicted intracellular proteins
- Subcellular location
- Mitochondria
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 mitochondrial protein initiates the degradation of 1,25-dihydroxyvitamin D3, the physiologically active form of vitamin D3, by hydroxylation of the side chain. In regulating the level of vitamin D3, this enzyme plays a role in calcium homeostasis and the vitamin D endocrine system. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
514 residues, UniProt reviewed canonical sequence.
>Q07973|CYP24A1
1 MSSPISKSRS LAAFLQQLRS PRQPPRLVTS TAYTSPQPRE VPVCPLTAGG ETQNAAALPG
61 PTSWPLLGSL LQILWKGGLK KQHDTLVEYH KKYGKIFRMK LGSFESVHLG SPCLLEALYR
121 TESAYPQRLE IKPWKAYRDY RKEGYGLLIL EGEDWQRVRS AFQKKLMKPG EVMKLDNKIN
181 EVLADFMGRI DELCDERGHV EDLYSELNKW SFESICLVLY EKRFGLLQKN AGDEAVNFIM
241 AIKTMMSTFG RMMVTPVELH KSLNTKVWQD HTLAWDTIFK SVKACIDNRL EKYSQQPSAD
301 FLCDIYHQNR LSKKELYAAV TELQLAAVET TANSLMWILY NLSRNPQVQQ KLLKEIQSVL
361 PENQVPRAED LRNMPYLKAC LKESMRLTPS VPFTTRTLDK ATVLGEYALP KGTVLMLNTQ
421 VLGSSEDNFE DSSQFRPERW LQEKEKINPF AHLPFGVGKR MCIGRRLAEL QLHLALCWIV
481 RKYDIQATDN EPVEMLHSGT LVPSRELPIA FCQRLocalizationUniProt · AlphaFold · HPA
Whether an antibody against CYP24A1 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)
- 0.27
- Highest tissue expression
- 32 nTPM
Expression across tissuesHPA
Tissue
- kidney: 32 nTPM
- urinary bladder: 27 nTPM
- endometrium: 14 nTPM
- tonsil: 9.9 nTPM
- placenta: 9.4 nTPM
- esophagus: 3.7 nTPM
Single-cell type
- endometrial secretory cells: 89 nCPM
- papillary tip epithelial cells: 88 nCPM
- respiratory basal cells: 65 nCPM
- epididymal basal cells: 52 nCPM
- basal keratinocytes: 48 nCPM
- loop of henle epithelial cells: 43 nCPM
Immune cell
- memory CD8 T-cell: 0.2 nTPM
- memory CD4 T-cell: 0.1 nTPM
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
Brain region
- hypothalamus: 4.7 nTPM
- midbrain: 4.2 nTPM
- thalamus: 1.9 nTPM
- medulla oblongata: 1.6 nTPM
- basal ganglia: 1.4 nTPM
- cerebral cortex: 1.4 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about CYP24A1.
Disease | AllUniProt
Conditions CYP24A1 is implicated in, by any mechanism.
- Hypercalcemia, infantile, 1 (HCINF1) MIM:143880
Disease | GeneticClinVar
63 pathogenic / likely-pathogenic of 456 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Hypercalcemia, infantile, 1
- CYP24A1-related disorder
- Renal tubulopathies
- Inborn genetic diseases
- Muscle spasm
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)
- 1.54
- gnomAD pLI
- 0
- gnomAD missense Z
- -1.1
- DepMap mean gene effect
- -0.04
- 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
- osteoblast differentiation
- response to vitamin D
- vitamin D catabolic process
- vitamin D metabolic process
- vitamin D receptor signaling pathway
- vitamin metabolic process
Molecular functions
- 1-alpha,25-dihydroxyvitamin D3 23-hydroxylase activity
- heme binding
- iron ion binding
- vitamin D3 25-hydroxylase activity
- 1-alpha,25-dihydroxyvitamin D3 24-hydroxylase activity
- 25-hydroxycholecalciferol-23-hydroxylase activity
- 25-hydroxycholecalciferol-24-hydroxylase activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads CYP24A1 as an antibody target. Whether an autoantibody or antibody against CYP24A1 could matter depends on whether native CYP24A1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
CYP24A1 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 CYP24A1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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