Explore a selection of our essential drug information below, or:
Identification
- Summary
Prednisolone phosphate is a corticosteroid used to treat inflammation, immune reactions, as well as endocrine or neoplastic conditions.
- Brand Names
- Orapred, Pediapred
- Generic Name
- Prednisolone phosphate
- DrugBank Accession Number
- DB14631
- Background
Prednisolone phosphate is a glucocorticoid similar to cortisol used for its anti-inflammatory, immunosuppressive, anti-neoplastic, and vasoconstrictive effects.2
Prednisolone phosphate was granted FDA Approval on 19 December 1973.8
- Type
- Small Molecule
- Groups
- Approved, Vet approved
- Structure
Structure for Prednisolone phosphate (DB14631)
- Weight
- Average: 440.429
Monoisotopic: 440.160004892 - Chemical Formula
- C21H29O8P
- Synonyms
- Prednisolone 21-(dihydrogen phosphate)
- Prednisolone 21-monophosphate
- Prednisolone 21-phosphate
Pharmacology
- Indication
Prednisolone phosphate is indication to a number of conditions including treat allergic states, dermatologic diseases, edematous states, endocrine disorders, gastrointestinal diseases, hematologic disorders, neoplastic diseases, nervous system, ophthalmic diseases, respiratory diseases, rheumatic disorders.6,7
Reduce drug development failure ratesBuild, train, & validate machine-learning modelswith evidence-based and structured datasets.Build, train, & validate predictive machine-learning models with structured datasets.- Associated Conditions
Indication Type Indication Combined Product Details Approval Level Age Group Patient Characteristics Dose Form Treatment of Allergic conditions •••••••••••• Treatment of Dermatologic disease •••••••••••• Treatment of Edema •••••••••••• Treatment of Endocrine disorders •••••••••••• Treatment of Eye inflammation •••••••••••• - Contraindications & Blackbox Warnings
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Corticosteroids bind to the glucocorticoid receptor, inhibiting pro-inflammatory signals, and promoting anti-inflammatory signals.2 Prednisolone has a short duration of action as the half life is 2-4 hours.5,6 Corticosteroids have a wide therapeutic window as patients make require doses that are multiples of what the body naturally produces.2 Patients taking corticosteroids should be counselled regarding the risk of hypothalamic-pituitary-adrenal axis suppression and increased susceptibility to infections.2
- Mechanism of action
The short term effects of corticosteroids are decreased vasodilation and permeability of capillaries, as well as decreased leukocyte migration to sites of inflammation.2 Corticosteroids binding to the glucocorticoid receptor mediates changes in gene expression that lead to multiple downstream effects over hours to days.2
Glucocorticoids inhibit neutrophil apoptosis and demargination; they inhibit phospholipase A2, which decreases the formation of arachidonic acid derivatives; they inhibit NF-Kappa B and other inflammatory transcription factors; they promote anti-inflammatory genes like interleukin-10.2
Lower doses of corticosteroids provide an anti-inflammatory effect, while higher doses are immunosuppressive.2 High doses of glucocorticoids for an extended period bind to the mineralocorticoid receptor, raising sodium levels and decreasing potassium levels.2
Target Actions Organism UGlucocorticoid receptor agonistHumans UAnnexin A1 ligandHumans - Absorption
A 30mg prednisolone oral solution reaches a Cmax of 461.33±77.94ng/mL with an AUC of 2426.1±360.0ng*h/mL.7 A 30mg prednisolone orally disintegrating tablet reaches a Cmax of 420.91±78.28ng/mL with an AUC of 2408.1±361.5ng*h/mL.7
- Volume of distribution
The volume of distribution of prednisolone phosphate has been reported as 0.22-0.7L/kg.7
- Protein binding
Prednisolone is 70-90% protein bound in plasma.6 Prednisolone typically binds to albumin and corticosteroid binding globulin.3,4
- Metabolism
Prednisolone phosphate undergoes ester hydrolysis to prednisolone.1 After this step, the drug undergoes the normal metabolism of prednisolone.
- Route of elimination
Prednisolone is predominantly eliminated in the urine as sulfate and glucuronide conjugate metabolites.6
- Half-life
The half life of prednisolone is 2-4 hours.6
- Clearance
Not Available
- Adverse Effects
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Data regarding acute overdose is not readily available.6 However, patients experiencing chronic overdose may present with mental symptoms, moon face, abnormal fat deposits, and fluid retention.6 Acute oral overdose may be treated with immediate gastric lavage or emesis followed by symptomatic and supportive treatment.6 Chronic overdosage can be managed by temporary dose reduction or alternate day treatment.6
- Pathways
- Not Available
- Pharmacogenomic Effects/ADRs
- Not Available
Interactions
- Drug Interactions
- This information should not be interpreted without the help of a healthcare provider. If you believe you are experiencing an interaction, contact a healthcare provider immediately. The absence of an interaction does not necessarily mean no interactions exist.
Drug Interaction Integrate drug-drug
interactions in your softwareAbametapir The serum concentration of Prednisolone phosphate can be increased when it is combined with Abametapir. Abemaciclib The serum concentration of Abemaciclib can be decreased when it is combined with Prednisolone phosphate. Abrocitinib The serum concentration of Prednisolone phosphate can be increased when it is combined with Abrocitinib. Acalabrutinib The metabolism of Acalabrutinib can be increased when combined with Prednisolone phosphate. Acarbose The risk or severity of hyperglycemia can be increased when Prednisolone phosphate is combined with Acarbose. - Food Interactions
- Take with food. Food reduces GI irritation.
Products
Drug product information from 10+ global regionsOur datasets provide approved product information including:dosage, form, labeller, route of administration, and marketing period.Access drug product information from over 10 global regions.- Product Ingredients
Ingredient UNII CAS InChI Key Prednisolone sodium phosphate IV021NXA9J 125-02-0 VJZLQIPZNBPASX-OJJGEMKLSA-L - Product Images
- Brand Name Prescription Products
Name Dosage Strength Route Labeller Marketing Start Marketing End Region Image Inflamase Forte Oph Soln 1% Liquid 10 mg / mL Ophthalmic Iolab Pharmaceuticals 1988-12-31 1996-09-09 Canada 
Inflamase Forte Ophthalmic Solution 1% Solution 1 % Ophthalmic Novartis Ophthalmics Novartis Pharmaceuticals (Canada) Inc 1996-08-20 2004-07-13 Canada Inflamase Mild Liquid .125 % Ophthalmic Novartis Ophthalmics Novartis Pharmaceuticals (Canada) Inc 1995-12-31 2002-07-04 Canada Inflamase Oph Soln 0.125% Liquid 1.25 mg / mL Ophthalmic Iolab Pharmaceuticals 1988-12-31 1996-09-09 Canada Minims Prednisolone Sodium Phosphate Solution / drops 0.5 % Ophthalmic Bausch & Lomb Inc 1995-12-31 Not applicable Canada - Generic Prescription Products
Name Dosage Strength Route Labeller Marketing Start Marketing End Region Image Millipred Solution 10 mg/5mL Oral Cerecor, Inc. 2014-03-01 2018-05-31 US 
Millipred Solution 10 mg/5mL Oral Laser Pharmaceuticals Llc 2009-07-01 2017-07-03 US Orapred Solution 15 mg/5mL Oral Shionogi 2000-12-14 2015-10-31 US Pediapred Solution 5 mg/5mL Oral Royal Pharmaceuticals 2003-03-26 2018-03-16 US PMS-prednisolone Solution 5 mg / 5 mL Oral Pharmascience Inc 2002-03-19 Not applicable Canada - Mixture Products
Name Ingredients Dosage Route Labeller Marketing Start Marketing End Region Image Sulfacetamide Sodium and Prednisolone Sodium Phosphate Prednisolone sodium phosphate (2.5 mg/1mL) + Sulfacetamide sodium (100 mg/1mL) Solution Ophthalmic Rebel Distributors 1995-12-29 Not applicable US Sulfacetamide Sodium and Prednisolone Sodium Phosphate Prednisolone sodium phosphate (2.3 mg/1mL) + Sulfacetamide sodium (100 mg/1mL) Solution / drops Ophthalmic REMEDYREPACK INC. 2015-01-20 2018-09-27 US Sulfacetamide Sodium and Prednisolone Sodium Phosphate Prednisolone sodium phosphate (2.3 mg/1mL) + Sulfacetamide sodium (100 mg/1mL) Solution / drops Ophthalmic Bausch & Lomb Incoporated 1995-12-29 Not applicable US Sulfacetamide Sodium and Prednisolone Sodium Phosphate Prednisolone sodium phosphate (2.3 mg/1mL) + Sulfacetamide sodium (100 mg/1mL) Solution / drops Ophthalmic Rpk Pharmaceuticals, Inc. 1995-12-29 Not applicable US Sulfacetamide Sodium and Prednisolone Sodium Phosphate Prednisolone sodium phosphate (2.3 mg/1mL) + Sulfacetamide sodium (100 mg/1mL) Solution / drops Ophthalmic REMEDYREPACK INC. 2020-01-30 Not applicable US - Unapproved/Other Products
Name Ingredients Dosage Route Labeller Marketing Start Marketing End Region Image Pred Phos - Brom Prednisolone sodium phosphate (10 mg/1mL) + Bromfenac sodium (0.75 mg/1mL) Solution / drops Ophthalmic Imprimis Njof, Llc 2018-07-02 Not applicable US Pred Phos - Gati Prednisolone sodium phosphate (10 mg/1mL) + Gatifloxacin sesquihydrate (5 mg/1mL) Solution / drops Ophthalmic Imprimis Njof, Llc 2018-07-02 2019-07-01 US Pred Phos-Gati-Brom Prednisolone sodium phosphate (10 mg/1mL) + Bromfenac (0.75 mg/1mL) + Gatifloxacin sesquihydrate (5 mg/1mL) Solution / drops Ophthalmic Imprimis Njof, Llc 2018-07-02 2019-07-01 US
Categories
- Drug Categories
- Adrenal Cortex Hormones
- Adrenals
- Anti-Inflammatory Agents
- Corticosteroids
- Cytochrome P-450 CYP2A6 Inducers
- Cytochrome P-450 CYP2B6 Inducers
- Cytochrome P-450 CYP2B6 Inducers (strength unknown)
- Cytochrome P-450 CYP2C19 Inducers
- Cytochrome P-450 CYP2C19 Inducers (strength unknown)
- Cytochrome P-450 CYP2C8 Inducers
- Cytochrome P-450 CYP2C8 Inducers (strength unknown)
- Cytochrome P-450 CYP2C9 Inducers
- Cytochrome P-450 CYP2C9 Inducers (strength unknown)
- Cytochrome P-450 CYP3A Inducers
- Cytochrome P-450 CYP3A Substrates
- Cytochrome P-450 CYP3A4 Inducers
- Cytochrome P-450 CYP3A4 Inducers (strength unknown)
- Cytochrome P-450 CYP3A4 Substrates
- Cytochrome P-450 CYP3A5 Inducers
- Cytochrome P-450 CYP3A5 Inducers (strength unknown)
- Cytochrome P-450 Enzyme Inducers
- Cytochrome P-450 Substrates
- Fused-Ring Compounds
- Glucocorticoids
- Hormones
- Hormones, Hormone Substitutes, and Hormone Antagonists
- OAT3/SLC22A8 Substrates
- P-glycoprotein inducers
- P-glycoprotein substrates
- Pregnadienes
- Pregnadienetriols
- Pregnanes
- Steroids
- Chemical TaxonomyProvided by Classyfire
- Description
- This compound belongs to the class of organic compounds known as gluco/mineralocorticoids, progestogins and derivatives. These are steroids with a structure based on a hydroxylated prostane moiety.
- Kingdom
- Organic compounds
- Super Class
- Lipids and lipid-like molecules
- Class
- Steroids and steroid derivatives
- Sub Class
- Pregnane steroids
- Direct Parent
- Gluco/mineralocorticoids, progestogins and derivatives
- Alternative Parents
- 20-oxosteroids / 3-oxo delta-1,4-steroids / 17-hydroxysteroids / 11-beta-hydroxysteroids / Delta-1,4-steroids / Glycerone phosphates / Monoalkyl phosphates / Tertiary alcohols / Alpha-hydroxy ketones / Secondary alcohols show 4 more
- Substituents
- 11-beta-hydroxysteroid / 11-hydroxysteroid / 17-hydroxysteroid / 20-oxosteroid / 3-oxo-delta-1,4-steroid / 3-oxosteroid / Alcohol / Aliphatic homopolycyclic compound / Alkyl phosphate / Alpha-hydroxy ketone show 18 more
- Molecular Framework
- Aliphatic homopolycyclic compounds
- External Descriptors
- Not Available
- Affected organisms
- Humans and other mammals
Chemical Identifiers
- UNII
- 752SY38R6C
- CAS number
- 302-25-0
- InChI Key
- JDOZJEUDSLGTLU-VWUMJDOOSA-N
- InChI
- InChI=1S/C21H29O8P/c1-19-7-5-13(22)9-12(19)3-4-14-15-6-8-21(25,17(24)11-29-30(26,27)28)20(15,2)10-16(23)18(14)19/h5,7,9,14-16,18,23,25H,3-4,6,8,10-11H2,1-2H3,(H2,26,27,28)/t14-,15-,16-,18+,19-,20-,21-/m0/s1
- IUPAC Name
- {2-[(1R,3aS,3bS,9aR,9bS,10S,11aS)-1,10-dihydroxy-9a,11a-dimethyl-7-oxo-1H,2H,3H,3aH,3bH,4H,5H,7H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-1-yl]-2-oxoethoxy}phosphonic acid
- SMILES
- [H][C@@]12CC[C@](O)(C(=O)COP(O)(O)=O)[C@@]1(C)C[C@H](O)[C@@]1([H])[C@@]2([H])CCC2=CC(=O)C=C[C@]12C
References
- General References
- Musson DG, Bidgood AM, Olejnik O: Assay methodology for prednisolone, prednisolone acetate and prednisolone sodium phosphate in rabbit aqueous humor and ocular physiological solutions. J Chromatogr. 1991 Apr 19;565(1-2):89-102. doi: 10.1016/0378-4347(91)80373-k. [Article]
- Yasir M, Sonthalia S: Corticosteroid Adverse Effects . [Article]
- Czock D, Keller F, Rasche FM, Haussler U: Pharmacokinetics and pharmacodynamics of systemically administered glucocorticoids. Clin Pharmacokinet. 2005;44(1):61-98. doi: 10.2165/00003088-200544010-00003. [Article]
- Gardill BR, Vogl MR, Lin HY, Hammond GL, Muller YA: Corticosteroid-binding globulin: structure-function implications from species differences. PLoS One. 2012;7(12):e52759. doi: 10.1371/journal.pone.0052759. Epub 2012 Dec 26. [Article]
- Pickup ME: Clinical pharmacokinetics of prednisone and prednisolone. Clin Pharmacokinet. 1979 Mar-Apr;4(2):111-28. doi: 10.2165/00003088-197904020-00004. [Article]
- FDA Approved Drug Products: Pediapred Prednisolons Sodium Phosphate Oral Solution [Link]
- FDA Approved Drug Products: Orapred Prednisolone Sodium Phosphate Orally Disintegrating Tablets [Link]
- FDA Approved Drug Products: Inflamase Prednisolone Sodium Phosphate Ophthalmic Drops (Discontinued) [Link]
- External Links
- ChemSpider
- 65064
- ChEBI
- 145705
- ChEMBL
- CHEMBL1201231
- ZINC
- ZINC000004097473
- Wikipedia
- Prednisolone_sodium_phosphate
Clinical Trials
- Clinical Trials
Clinical Trial & Rare Diseases Add-on Data Package
Explore 4,000+ rare diseases, orphan drugs & condition pairs, clinical trial why stopped data, & more. Preview package Phase Status Purpose Conditions Count Start Date Why Stopped 100+ additional columns Unlock 175K+ rows when you subscribe.View sample dataNot Available Completed Treatment Allergic Reaction / Urticaria 1 somestatus stop reason just information to hide Not Available Withdrawn Treatment Bronchiolitis 1 somestatus stop reason just information to hide 4 Completed Prevention Allergic Conjunctivitis (AC) 1 somestatus stop reason just information to hide 4 Completed Prevention Chronic Allergic Conjunctivitis 1 somestatus stop reason just information to hide 4 Terminated Treatment Asthma / Status Asthmaticus / Wheezing 1 somestatus stop reason just information to hide
Pharmacoeconomics
- Manufacturers
- Not Available
- Packagers
- Not Available
- Dosage Forms
Form Route Strength Solution / drops Auricular (otic) 1 % Solution Ophthalmic 5.500 mg Liquid Ophthalmic 10 mg / mL Solution Ophthalmic 1 % Liquid Ophthalmic .125 % Liquid Ophthalmic 1.25 mg / mL Solution Oral 403.100 mg Solution Oral 10 mg/5mL Solution / drops Ophthalmic 0.5 % Solution Ophthalmic 0.5 % w/v Solution Ophthalmic 1.0 mg Solution Conjunctival; Ophthalmic Tablet, orally disintegrating Oral 10 mg/1 Tablet, orally disintegrating Oral 30 mg/1 Tablet, orally disintegrating Oral 15 mg/1 Solution Auricular (otic) Liquid Oral 5 mg / 5 mL Solution Oral 5 mg / 5 mL Solution Oral 0.1 g Solution Oral 300 mg Solution Oral 15 mg/5mL Solution Oral 5 mg/5mL Solution / drops Ophthalmic 10 mg/1mL Solution Oral 25 mg/5mL Syrup Oral 5 mg/5ml Solution Ophthalmic 5.000 mg Liquid; solution / drops Ophthalmic 1 % Solution Ophthalmic Solution / drops Ophthalmic Liquid Ophthalmic Solution Oral 20 mg/5mL Syrup Oral 5 mg Syrup Oral 5 mg/ml - Prices
- Not Available
- Patents
Patent Number Pediatric Extension Approved Expires (estimated) Region US6221392 No 2001-04-24 2018-04-09 US US6024981 No 2000-02-15 2018-04-09 US US6740341 No 2004-05-25 2019-11-24 US
Properties
- State
- Solid
- Experimental Properties
- Not Available
- Predicted Properties
Property Value Source Water Solubility 0.432 mg/mL ALOGPS logP 0.92 ALOGPS logP 1.15 Chemaxon logS -3 ALOGPS pKa (Strongest Acidic) 1.18 Chemaxon pKa (Strongest Basic) -2.9 Chemaxon Physiological Charge -2 Chemaxon Hydrogen Acceptor Count 7 Chemaxon Hydrogen Donor Count 4 Chemaxon Polar Surface Area 141.36 Å2 Chemaxon Rotatable Bond Count 4 Chemaxon Refractivity 109.37 m3·mol-1 Chemaxon Polarizability 43.42 Å3 Chemaxon Number of Rings 4 Chemaxon Bioavailability 1 Chemaxon Rule of Five Yes Chemaxon Ghose Filter Yes Chemaxon Veber's Rule No Chemaxon MDDR-like Rule No Chemaxon - Predicted ADMET Features
- Not Available
Spectra
- Mass Spec (NIST)
- Not Available
- Spectra
Spectrum Spectrum Type Splash Key Predicted MS/MS Spectrum - 10V, Positive (Annotated) Predicted LC-MS/MS splash10-00dl-0006900000-8e11e1aa7f50b80c3cec Predicted MS/MS Spectrum - 10V, Negative (Annotated) Predicted LC-MS/MS splash10-000i-0000900000-33070284629503dc94b3 Predicted MS/MS Spectrum - 20V, Positive (Annotated) Predicted LC-MS/MS splash10-05fr-0757900000-03ce9c74ff0b5bcf65c7 Predicted MS/MS Spectrum - 20V, Negative (Annotated) Predicted LC-MS/MS splash10-004i-9000100000-86543a31a65a05e31a85 Predicted MS/MS Spectrum - 40V, Negative (Annotated) Predicted LC-MS/MS splash10-004i-9000000000-b9c62d57ae6313402ba3 Predicted MS/MS Spectrum - 40V, Positive (Annotated) Predicted LC-MS/MS splash10-0bt9-0941000000-616dca86acc37bdb345e Predicted 1H NMR Spectrum 1D NMR Not Applicable Predicted 13C NMR Spectrum 1D NMR Not Applicable - Chromatographic Properties
Collision Cross Sections (CCS)
Adduct CCS Value (Å2) Source type Source [M-H]- 196.18855 predictedDeepCCS 1.0 (2019) [M+H]+ 198.41504 predictedDeepCCS 1.0 (2019) [M+Na]+ 204.75829 predictedDeepCCS 1.0 (2019)
Targets
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- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Agonist
- General Function
- Receptor for glucocorticoids (GC) (PubMed:27120390, PubMed:37478846). Has a dual mode of action: as a transcription factor that binds to glucocorticoid response elements (GRE), both for nuclear and mitochondrial DNA, and as a modulator of other transcription factors (PubMed:28139699). Affects inflammatory responses, cellular proliferation and differentiation in target tissues. Involved in chromatin remodeling (PubMed:9590696). Plays a role in rapid mRNA degradation by binding to the 5' UTR of target mRNAs and interacting with PNRC2 in a ligand-dependent manner which recruits the RNA helicase UPF1 and the mRNA-decapping enzyme DCP1A, leading to RNA decay (PubMed:25775514). Could act as a coactivator for STAT5-dependent transcription upon growth hormone (GH) stimulation and could reveal an essential role of hepatic GR in the control of body growth (By similarity)
- Specific Function
- Core promoter sequence-specific dna binding
- Gene Name
- NR3C1
- Uniprot ID
- P04150
- Uniprot Name
- Glucocorticoid receptor
- Molecular Weight
- 85658.57 Da
References
- Czock D, Keller F, Rasche FM, Haussler U: Pharmacokinetics and pharmacodynamics of systemically administered glucocorticoids. Clin Pharmacokinet. 2005;44(1):61-98. doi: 10.2165/00003088-200544010-00003. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Ligand
- General Function
- Plays important roles in the innate immune response as effector of glucocorticoid-mediated responses and regulator of the inflammatory process. Has anti-inflammatory activity (PubMed:8425544). Plays a role in glucocorticoid-mediated down-regulation of the early phase of the inflammatory response (By similarity). Contributes to the adaptive immune response by enhancing signaling cascades that are triggered by T-cell activation, regulates differentiation and proliferation of activated T-cells (PubMed:17008549). Promotes the differentiation of T-cells into Th1 cells and negatively regulates differentiation into Th2 cells (PubMed:17008549). Has no effect on unstimulated T cells (PubMed:17008549). Negatively regulates hormone exocytosis via activation of the formyl peptide receptors and reorganization of the actin cytoskeleton (PubMed:19625660). Has high affinity for Ca(2+) and can bind up to eight Ca(2+) ions (By similarity). Displays Ca(2+)-dependent binding to phospholipid membranes (PubMed:2532504, PubMed:8557678). Plays a role in the formation of phagocytic cups and phagosomes. Plays a role in phagocytosis by mediating the Ca(2+)-dependent interaction between phagosomes and the actin cytoskeleton (By similarity)
- Specific Function
- Cadherin binding involved in cell-cell adhesion
- Gene Name
- ANXA1
- Uniprot ID
- P04083
- Uniprot Name
- Annexin A1
- Molecular Weight
- 38713.855 Da
References
- Serres M, Viac J, Comera C, Schmitt D: Expression of annexin I in freshly isolated human epidermal cells and in cultured keratinocytes. Arch Dermatol Res. 1994;286(5):268-72. [Article]
Enzymes
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- SubstrateInducer
- General Function
- A cytochrome P450 monooxygenase involved in the metabolism of sterols, steroid hormones, retinoids and fatty acids (PubMed:10681376, PubMed:11093772, PubMed:11555828, PubMed:12865317, PubMed:14559847, PubMed:15373842, PubMed:15764715, PubMed:19965576, PubMed:20702771, PubMed:21490593, PubMed:21576599). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (NADPH--hemoprotein reductase). Catalyzes the hydroxylation of carbon-hydrogen bonds (PubMed:12865317, PubMed:14559847, PubMed:15373842, PubMed:15764715, PubMed:21490593, PubMed:21576599, PubMed:2732228). Exhibits high catalytic activity for the formation of hydroxyestrogens from estrone (E1) and 17beta-estradiol (E2), namely 2-hydroxy E1 and E2, as well as D-ring hydroxylated E1 and E2 at the C-16 position (PubMed:11555828, PubMed:12865317, PubMed:14559847). Plays a role in the metabolism of androgens, particularly in oxidative deactivation of testosterone (PubMed:15373842, PubMed:15764715, PubMed:22773874, PubMed:2732228). Metabolizes testosterone to less biologically active 2beta- and 6beta-hydroxytestosterones (PubMed:15373842, PubMed:15764715, PubMed:2732228). Contributes to the formation of hydroxycholesterols (oxysterols), particularly A-ring hydroxylated cholesterol at the C-4beta position, and side chain hydroxylated cholesterol at the C-25 position, likely contributing to cholesterol degradation and bile acid biosynthesis (PubMed:21576599). Catalyzes bisallylic hydroxylation of polyunsaturated fatty acids (PUFA) (PubMed:9435160). Catalyzes the epoxidation of double bonds of PUFA with a preference for the last double bond (PubMed:19965576). Metabolizes endocannabinoid arachidonoylethanolamide (anandamide) to 8,9-, 11,12-, and 14,15-epoxyeicosatrienoic acid ethanolamides (EpETrE-EAs), potentially modulating endocannabinoid system signaling (PubMed:20702771). Plays a role in the metabolism of retinoids. Displays high catalytic activity for oxidation of all-trans-retinol to all-trans-retinal, a rate-limiting step for the biosynthesis of all-trans-retinoic acid (atRA) (PubMed:10681376). Further metabolizes atRA toward 4-hydroxyretinoate and may play a role in hepatic atRA clearance (PubMed:11093772). Responsible for oxidative metabolism of xenobiotics. Acts as a 2-exo-monooxygenase for plant lipid 1,8-cineole (eucalyptol) (PubMed:11159812). Metabolizes the majority of the administered drugs. Catalyzes sulfoxidation of the anthelmintics albendazole and fenbendazole (PubMed:10759686). Hydroxylates antimalarial drug quinine (PubMed:8968357). Acts as a 1,4-cineole 2-exo-monooxygenase (PubMed:11695850). Also involved in vitamin D catabolism and calcium homeostasis. Catalyzes the inactivation of the active hormone calcitriol (1-alpha,25-dihydroxyvitamin D(3)) (PubMed:29461981)
- Specific Function
- 1,8-cineole 2-exo-monooxygenase activity
- Gene Name
- CYP3A4
- Uniprot ID
- P08684
- Uniprot Name
- Cytochrome P450 3A4
- Molecular Weight
- 57342.67 Da
References
- Dvorak Z, Pavek P: Regulation of drug-metabolizing cytochrome P450 enzymes by glucocorticoids. Drug Metab Rev. 2010 Nov;42(4):621-35. doi: 10.3109/03602532.2010.484462. [Article]
- Usui T, Saitoh Y, Komada F: Induction of CYP3As in HepG2 cells by several drugs. Association between induction of CYP3A4 and expression of glucocorticoid receptor. Biol Pharm Bull. 2003 Apr;26(4):510-7. doi: 10.1248/bpb.26.510. [Article]
- Pichard L, Fabre I, Daujat M, Domergue J, Joyeux H, Maurel P: Effect of corticosteroids on the expression of cytochromes P450 and on cyclosporin A oxidase activity in primary cultures of human hepatocytes. Mol Pharmacol. 1992 Jun;41(6):1047-55. [Article]
- Matoulkova P, Pavek P, Maly J, Vlcek J: Cytochrome P450 enzyme regulation by glucocorticoids and consequences in terms of drug interaction. Expert Opin Drug Metab Toxicol. 2014 Mar;10(3):425-35. doi: 10.1517/17425255.2014.878703. Epub 2014 Jan 23. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Inducer
- General Function
- A cytochrome P450 monooxygenase involved in the metabolism of steroid hormones and vitamins (PubMed:10681376, PubMed:11093772, PubMed:12865317, PubMed:2732228). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (NADPH--hemoprotein reductase). Catalyzes the hydroxylation of carbon-hydrogen bonds (PubMed:10681376, PubMed:11093772, PubMed:12865317, PubMed:2732228). Exhibits high catalytic activity for the formation of catechol estrogens from 17beta-estradiol (E2) and estrone (E1), namely 2-hydroxy E1 and E2 (PubMed:12865317). Catalyzes 6beta-hydroxylation of the steroid hormones testosterone, progesterone, and androstenedione (PubMed:2732228). Catalyzes the oxidative conversion of all-trans-retinol to all-trans-retinal, a rate-limiting step for the biosynthesis of all-trans-retinoic acid (atRA) (PubMed:10681376). Further metabolizes all trans-retinoic acid (atRA) to 4-hydroxyretinoate and may play a role in hepatic atRA clearance (PubMed:11093772). Also involved in the oxidative metabolism of xenobiotics, including calcium channel blocking drug nifedipine and immunosuppressive drug cyclosporine (PubMed:2732228)
- Specific Function
- Aromatase activity
- Gene Name
- CYP3A5
- Uniprot ID
- P20815
- Uniprot Name
- Cytochrome P450 3A5
- Molecular Weight
- 57108.065 Da
References
- Dvorak Z, Pavek P: Regulation of drug-metabolizing cytochrome P450 enzymes by glucocorticoids. Drug Metab Rev. 2010 Nov;42(4):621-35. doi: 10.3109/03602532.2010.484462. [Article]
- Kind
- Protein group
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Inducer
- General Function
- A cytochrome P450 monooxygenase involved in the metabolism of sterols, steroid hormones, retinoids and fatty acids (PubMed:10681376, PubMed:11093772, PubMed:11555828, PubMed:12865317, PubMed:14559847, PubMed:15373842, PubMed:15764715, PubMed:19965576, PubMed:20702771, PubMed:21490593, PubMed:21576599). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (NADPH--hemoprotein reductase). Catalyzes the hydroxylation of carbon-hydrogen bonds (PubMed:12865317, PubMed:14559847, PubMed:15373842, PubMed:15764715, PubMed:21490593, PubMed:21576599, PubMed:2732228). Exhibits high catalytic activity for the formation of hydroxyestrogens from estrone (E1) and 17beta-estradiol (E2), namely 2-hydroxy E1 and E2, as well as D-ring hydroxylated E1 and E2 at the C-16 position (PubMed:11555828, PubMed:12865317, PubMed:14559847). Plays a role in the metabolism of androgens, particularly in oxidative deactivation of testosterone (PubMed:15373842, PubMed:15764715, PubMed:22773874, PubMed:2732228). Metabolizes testosterone to less biologically active 2beta- and 6beta-hydroxytestosterones (PubMed:15373842, PubMed:15764715, PubMed:2732228). Contributes to the formation of hydroxycholesterols (oxysterols), particularly A-ring hydroxylated cholesterol at the C-4beta position, and side chain hydroxylated cholesterol at the C-25 position, likely contributing to cholesterol degradation and bile acid biosynthesis (PubMed:21576599). Catalyzes bisallylic hydroxylation of polyunsaturated fatty acids (PUFA) (PubMed:9435160). Catalyzes the epoxidation of double bonds of PUFA with a preference for the last double bond (PubMed:19965576). Metabolizes endocannabinoid arachidonoylethanolamide (anandamide) to 8,9-, 11,12-, and 14,15-epoxyeicosatrienoic acid ethanolamides (EpETrE-EAs), potentially modulating endocannabinoid system signaling (PubMed:20702771). Plays a role in the metabolism of retinoids. Displays high catalytic activity for oxidation of all-trans-retinol to all-trans-retinal, a rate-limiting step for the biosynthesis of all-trans-retinoic acid (atRA) (PubMed:10681376). Further metabolizes atRA toward 4-hydroxyretinoate and may play a role in hepatic atRA clearance (PubMed:11093772). Responsible for oxidative metabolism of xenobiotics. Acts as a 2-exo-monooxygenase for plant lipid 1,8-cineole (eucalyptol) (PubMed:11159812). Metabolizes the majority of the administered drugs. Catalyzes sulfoxidation of the anthelmintics albendazole and fenbendazole (PubMed:10759686). Hydroxylates antimalarial drug quinine (PubMed:8968357). Acts as a 1,4-cineole 2-exo-monooxygenase (PubMed:11695850). Also involved in vitamin D catabolism and calcium homeostasis. Catalyzes the inactivation of the active hormone calcitriol (1-alpha,25-dihydroxyvitamin D(3)) (PubMed:29461981)
- Specific Function
- 1,8-cineole 2-exo-monooxygenase activity
Components:
| Name | UniProt ID |
|---|---|
| Cytochrome P450 3A4 | P08684 |
| Cytochrome P450 3A43 | Q9HB55 |
| Cytochrome P450 3A5 | P20815 |
| Cytochrome P450 3A7 | P24462 |
References
- Roberts JK, Moore CD, Romero EG, Ward RM, Yost GS, Reilly CA: Regulation of CYP3A genes by glucocorticoids in human lung cells. F1000Res. 2013 Aug 13;2:173. doi: 10.12688/f1000research.2-173.v2. eCollection 2013. [Article]
- Matoulkova P, Pavek P, Maly J, Vlcek J: Cytochrome P450 enzyme regulation by glucocorticoids and consequences in terms of drug interaction. Expert Opin Drug Metab Toxicol. 2014 Mar;10(3):425-35. doi: 10.1517/17425255.2014.878703. Epub 2014 Jan 23. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Inducer
- General Function
- Exhibits a high coumarin 7-hydroxylase activity. Can act in the hydroxylation of the anti-cancer drugs cyclophosphamide and ifosphamide. Competent in the metabolic activation of aflatoxin B1. Constitutes the major nicotine C-oxidase. Acts as a 1,4-cineole 2-exo-monooxygenase. Possesses low phenacetin O-deethylation activity
- Specific Function
- Arachidonic acid epoxygenase activity
- Gene Name
- CYP2A6
- Uniprot ID
- P11509
- Uniprot Name
- Cytochrome P450 2A6
- Molecular Weight
- 56517.005 Da
References
- Matoulkova P, Pavek P, Maly J, Vlcek J: Cytochrome P450 enzyme regulation by glucocorticoids and consequences in terms of drug interaction. Expert Opin Drug Metab Toxicol. 2014 Mar;10(3):425-35. doi: 10.1517/17425255.2014.878703. Epub 2014 Jan 23. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Inducer
- General Function
- A cytochrome P450 monooxygenase involved in the metabolism of various endogenous substrates, including fatty acids, steroid hormones and vitamins (PubMed:10681376, PubMed:11555828, PubMed:12865317, PubMed:15258110, PubMed:20972997). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (NADPH--hemoprotein reductase) (PubMed:10681376, PubMed:11555828, PubMed:12865317, PubMed:15258110, PubMed:20972997). Exhibits catalytic activity for the formation of hydroxyestrogens from estrone (E1) and 17beta-estradiol (E2), namely 2- and 4-hydroxy E1 and E2. Displays a predominant hydroxylase activity toward E2 at the C-4 position (PubMed:11555828, PubMed:12865317). Metabolizes testosterone and progesterone to B or D ring hydroxylated metabolites (PubMed:10426814). May act as a major enzyme for all-trans retinoic acid biosynthesis in extrahepatic tissues. Catalyzes two successive oxidative transformation of all-trans retinol to all-trans retinal and then to the active form all-trans retinoic acid (PubMed:10681376, PubMed:15258110). Catalyzes the epoxidation of double bonds of certain PUFA. Converts arachidonic acid toward epoxyeicosatrienoic acid (EpETrE) regioisomers, 8,9-, 11,12-, and 14,15- EpETrE, that function as lipid mediators in the vascular system (PubMed:20972997). Additionally, displays dehydratase activity toward oxygenated eicosanoids hydroperoxyeicosatetraenoates (HpETEs). This activity is independent of cytochrome P450 reductase, NADPH, and O2 (PubMed:21068195). Also involved in the oxidative metabolism of xenobiotics, particularly converting polycyclic aromatic hydrocarbons and heterocyclic aryl amines procarcinogens to DNA-damaging products (PubMed:10426814). Plays an important role in retinal vascular development. Under hyperoxic O2 conditions, promotes retinal angiogenesis and capillary morphogenesis, likely by metabolizing the oxygenated products generated during the oxidative stress. Also, contributes to oxidative homeostasis and ultrastructural organization and function of trabecular meshwork tissue through modulation of POSTN expression (By similarity)
- Specific Function
- Aromatase activity
- Gene Name
- CYP1B1
- Uniprot ID
- Q16678
- Uniprot Name
- Cytochrome P450 1B1
- Molecular Weight
- 60845.33 Da
References
- Matoulkova P, Pavek P, Maly J, Vlcek J: Cytochrome P450 enzyme regulation by glucocorticoids and consequences in terms of drug interaction. Expert Opin Drug Metab Toxicol. 2014 Mar;10(3):425-35. doi: 10.1517/17425255.2014.878703. Epub 2014 Jan 23. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Inducer
- General Function
- A cytochrome P450 monooxygenase involved in the metabolism of endocannabinoids and steroids (PubMed:12865317, PubMed:21289075). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (NADPH--hemoprotein reductase). Catalyzes the epoxidation of double bonds of arachidonoylethanolamide (anandamide) to 8,9-, 11,12-, and 14,15-epoxyeicosatrienoic acid ethanolamides (EpETrE-EAs), potentially modulating endocannabinoid system signaling (PubMed:21289075). Hydroxylates steroid hormones, including testosterone at C-16 and estrogens at C-2 (PubMed:12865317, PubMed:21289075). Plays a role in the oxidative metabolism of xenobiotics, including plant lipids and drugs (PubMed:11695850, PubMed:22909231). Acts as a 1,4-cineole 2-exo-monooxygenase (PubMed:11695850)
- Specific Function
- Anandamide 11,12 epoxidase activity
- Gene Name
- CYP2B6
- Uniprot ID
- P20813
- Uniprot Name
- Cytochrome P450 2B6
- Molecular Weight
- 56277.81 Da
References
- Matoulkova P, Pavek P, Maly J, Vlcek J: Cytochrome P450 enzyme regulation by glucocorticoids and consequences in terms of drug interaction. Expert Opin Drug Metab Toxicol. 2014 Mar;10(3):425-35. doi: 10.1517/17425255.2014.878703. Epub 2014 Jan 23. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Inducer
- General Function
- A cytochrome P450 monooxygenase involved in the metabolism of various endogenous substrates, including fatty acids, steroid hormones and vitamins (PubMed:11093772, PubMed:14559847, PubMed:15766564, PubMed:19965576, PubMed:7574697). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (NADPH--hemoprotein reductase) (PubMed:11093772, PubMed:14559847, PubMed:15766564, PubMed:19965576, PubMed:7574697). Primarily catalyzes the epoxidation of double bonds of polyunsaturated fatty acids (PUFA) with a preference for the last double bond (PubMed:15766564, PubMed:19965576, PubMed:7574697). Catalyzes the hydroxylation of carbon-hydrogen bonds. Metabolizes all trans-retinoic acid toward its 4-hydroxylated form (PubMed:11093772). Displays 16-alpha hydroxylase activity toward estrogen steroid hormones, 17beta-estradiol (E2) and estrone (E1) (PubMed:14559847). Plays a role in the oxidative metabolism of xenobiotics. It is the principal enzyme responsible for the metabolism of the anti-cancer drug paclitaxel (taxol) (PubMed:26427316)
- Specific Function
- Arachidonic acid epoxygenase activity
- Gene Name
- CYP2C8
- Uniprot ID
- P10632
- Uniprot Name
- Cytochrome P450 2C8
- Molecular Weight
- 55824.275 Da
References
- Matoulkova P, Pavek P, Maly J, Vlcek J: Cytochrome P450 enzyme regulation by glucocorticoids and consequences in terms of drug interaction. Expert Opin Drug Metab Toxicol. 2014 Mar;10(3):425-35. doi: 10.1517/17425255.2014.878703. Epub 2014 Jan 23. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Inducer
- General Function
- A cytochrome P450 monooxygenase involved in the metabolism of various endogenous substrates, including fatty acids and steroids (PubMed:12865317, PubMed:15766564, PubMed:19965576, PubMed:21576599, PubMed:7574697, PubMed:9435160, PubMed:9866708). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (NADPH--hemoprotein reductase) (PubMed:12865317, PubMed:15766564, PubMed:19965576, PubMed:21576599, PubMed:7574697, PubMed:9435160, PubMed:9866708). Catalyzes the epoxidation of double bonds of polyunsaturated fatty acids (PUFA) (PubMed:15766564, PubMed:19965576, PubMed:7574697, PubMed:9866708). Catalyzes the hydroxylation of carbon-hydrogen bonds. Metabolizes cholesterol toward 25-hydroxycholesterol, a physiological regulator of cellular cholesterol homeostasis (PubMed:21576599). Exhibits low catalytic activity for the formation of catechol estrogens from 17beta-estradiol (E2) and estrone (E1), namely 2-hydroxy E1 and E2 (PubMed:12865317). Catalyzes bisallylic hydroxylation and hydroxylation with double-bond migration of polyunsaturated fatty acids (PUFA) (PubMed:9435160, PubMed:9866708). Also metabolizes plant monoterpenes such as limonene. Oxygenates (R)- and (S)-limonene to produce carveol and perillyl alcohol (PubMed:11950794). Contributes to the wide pharmacokinetics variability of the metabolism of drugs such as S-warfarin, diclofenac, phenytoin, tolbutamide and losartan (PubMed:25994031)
- Specific Function
- (r)-limonene 6-monooxygenase activity
- Gene Name
- CYP2C9
- Uniprot ID
- P11712
- Uniprot Name
- Cytochrome P450 2C9
- Molecular Weight
- 55627.365 Da
References
- Matoulkova P, Pavek P, Maly J, Vlcek J: Cytochrome P450 enzyme regulation by glucocorticoids and consequences in terms of drug interaction. Expert Opin Drug Metab Toxicol. 2014 Mar;10(3):425-35. doi: 10.1517/17425255.2014.878703. Epub 2014 Jan 23. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Inducer
- General Function
- A cytochrome P450 monooxygenase involved in the metabolism of polyunsaturated fatty acids (PUFA) (PubMed:18577768, PubMed:19965576, PubMed:20972997). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (NADPH--hemoprotein reductase) (PubMed:18577768, PubMed:19965576, PubMed:20972997). Catalyzes the hydroxylation of carbon-hydrogen bonds. Hydroxylates PUFA specifically at the omega-1 position (PubMed:18577768). Catalyzes the epoxidation of double bonds of PUFA (PubMed:19965576, PubMed:20972997). Also metabolizes plant monoterpenes such as limonene. Oxygenates (R)- and (S)-limonene to produce carveol and perillyl alcohol (PubMed:11950794). Responsible for the metabolism of a number of therapeutic agents such as the anticonvulsant drug S-mephenytoin, omeprazole, proguanil, certain barbiturates, diazepam, propranolol, citalopram and imipramine. Hydroxylates fenbendazole at the 4' position (PubMed:23959307)
- Specific Function
- (r)-limonene 6-monooxygenase activity
- Gene Name
- CYP2C19
- Uniprot ID
- P33261
- Uniprot Name
- Cytochrome P450 2C19
- Molecular Weight
- 55944.565 Da
References
- Matoulkova P, Pavek P, Maly J, Vlcek J: Cytochrome P450 enzyme regulation by glucocorticoids and consequences in terms of drug interaction. Expert Opin Drug Metab Toxicol. 2014 Mar;10(3):425-35. doi: 10.1517/17425255.2014.878703. Epub 2014 Jan 23. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Substrate
- General Function
- Catalyzes the conversion of biologically active 11beta-hydroxyglucocorticoids (11beta-hydroxysteroid) such as cortisol, to inactive 11-ketoglucocorticoids (11-oxosteroid) such as cortisone, in the presence of NAD(+) (PubMed:10497248, PubMed:12788846, PubMed:17314322, PubMed:22796344, PubMed:27927697, PubMed:30902677, PubMed:33387577, PubMed:7859916, PubMed:8538347). Functions as a dehydrogenase (oxidase), thereby decreasing the concentration of active glucocorticoids, thus protecting the nonselective mineralocorticoid receptor from occupation by glucocorticoids (PubMed:10497248, PubMed:12788846, PubMed:17314322, PubMed:33387577, PubMed:7859916). Plays an important role in maintaining glucocorticoids balance during preimplantation and protects the fetus from excessive maternal corticosterone exposure (By similarity). Catalyzes the oxidation of 11beta-hydroxytestosterone (11beta,17beta-dihydroxyandrost-4-ene-3-one) to 11-ketotestosterone (17beta-hydroxyandrost-4-ene-3,11-dione), a major bioactive androgen (PubMed:22796344, PubMed:27927697). Catalyzes the conversion of 11beta-hydroxyandrostenedione (11beta-hydroxyandrost-4-ene-3,17-dione) to 11-ketoandrostenedione (androst-4-ene-3,11,17-trione), which can be further metabolized to 11-ketotestosterone (PubMed:27927697). Converts 7-beta-25-dihydroxycholesterol to 7-oxo-25-hydroxycholesterol in vitro (PubMed:30902677). 7-beta-25-dihydroxycholesterol (not 7-oxo-25-hydroxycholesterol) acts as a ligand for the G-protein-coupled receptor (GPCR) Epstein-Barr virus-induced gene 2 (EBI2) and may thereby regulate immune cell migration (PubMed:30902677). May protect ovulating oocytes and fertilizing spermatozoa from the adverse effects of cortisol (By similarity)
- Specific Function
- 11-beta-hydroxysteroid dehydrogenase (nad+) activity
- Gene Name
- HSD11B2
- Uniprot ID
- P80365
- Uniprot Name
- 11-beta-hydroxysteroid dehydrogenase type 2
- Molecular Weight
- 44126.06 Da
References
- Diederich S, Eigendorff E, Burkhardt P, Quinkler M, Bumke-Vogt C, Rochel M, Seidelmann D, Esperling P, Oelkers W, Bahr V: 11beta-hydroxysteroid dehydrogenase types 1 and 2: an important pharmacokinetic determinant for the activity of synthetic mineralo- and glucocorticoids. J Clin Endocrinol Metab. 2002 Dec;87(12):5695-701. doi: 10.1210/jc.2002-020970. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Substrate
- General Function
- Controls the reversible conversion of biologically active glucocorticoids such as cortisone to cortisol, and 11-dehydrocorticosterone to corticosterone in the presence of NADP(H) (PubMed:10497248, PubMed:12460758, PubMed:14973125, PubMed:15152005, PubMed:15280030, PubMed:17593962, PubMed:21453287, PubMed:27927697, PubMed:30902677). Participates in the corticosteroid receptor-mediated anti-inflammatory response, as well as metabolic and homeostatic processes (PubMed:10497248, PubMed:12414862, PubMed:15152005, PubMed:21453287). Plays a role in the secretion of aqueous humor in the eye, maintaining a normotensive, intraocular environment (PubMed:11481269). Bidirectional in vitro, predominantly functions as a reductase in vivo, thereby increasing the concentration of active glucocorticoids (PubMed:10497248, PubMed:11481269, PubMed:12414862, PubMed:12460758). It has broad substrate specificity, besides glucocorticoids, it accepts other steroid and sterol substrates (PubMed:15095019, PubMed:15152005, PubMed:17593962, PubMed:21453287). Interconverts 7-oxo- and 7-hydroxy-neurosteroids such as 7-oxopregnenolone and 7beta-hydroxypregnenolone, 7-oxodehydroepiandrosterone (3beta-hydroxy-5-androstene-7,17-dione) and 7beta-hydroxydehydroepiandrosterone (3beta,7beta-dihydroxyandrost-5-en-17-one), among others (PubMed:17593962). Catalyzes the stereo-specific conversion of the major dietary oxysterol, 7-ketocholesterol (7-oxocholesterol), into the more polar 7-beta-hydroxycholesterol metabolite (PubMed:15095019, PubMed:15152005). 7-oxocholesterol is one of the most important oxysterols, it participates in several events such as induction of apoptosis, accumulation in atherosclerotic lesions, lipid peroxidation, and induction of foam cell formation (PubMed:15095019). Mediates the 7-oxo reduction of 7-oxolithocholate mainly to chenodeoxycholate, and to a lesser extent to ursodeoxycholate, both in its free form and when conjugated to glycine or taurine, providing a link between glucocorticoid activation and bile acid metabolism (PubMed:21453287). Catalyzes the synthesis of 7-beta-25-dihydroxycholesterol from 7-oxo-25-hydroxycholesterol in vitro, which acts as a ligand for the G-protein-coupled receptor (GPCR) Epstein-Barr virus-induced gene 2 (EBI2) and may thereby regulate immune cell migration (PubMed:30902677)
- Specific Function
- 11-beta-hydroxysteroid dehydrogenase (nadp+) activity
- Gene Name
- HSD11B1
- Uniprot ID
- P28845
- Uniprot Name
- 11-beta-hydroxysteroid dehydrogenase 1
- Molecular Weight
- 32400.665 Da
References
- Diederich S, Eigendorff E, Burkhardt P, Quinkler M, Bumke-Vogt C, Rochel M, Seidelmann D, Esperling P, Oelkers W, Bahr V: 11beta-hydroxysteroid dehydrogenase types 1 and 2: an important pharmacokinetic determinant for the activity of synthetic mineralo- and glucocorticoids. J Clin Endocrinol Metab. 2002 Dec;87(12):5695-701. doi: 10.1210/jc.2002-020970. [Article]
Carriers
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Binder
- General Function
- Major transport protein for glucocorticoids and progestins in the blood of almost all vertebrate species
- Specific Function
- Serine-type endopeptidase inhibitor activity
- Gene Name
- SERPINA6
- Uniprot ID
- P08185
- Uniprot Name
- Corticosteroid-binding globulin
- Molecular Weight
- 45140.49 Da
References
- Gardill BR, Vogl MR, Lin HY, Hammond GL, Muller YA: Corticosteroid-binding globulin: structure-function implications from species differences. PLoS One. 2012;7(12):e52759. doi: 10.1371/journal.pone.0052759. Epub 2012 Dec 26. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Binder
- General Function
- Binds water, Ca(2+), Na(+), K(+), fatty acids, hormones, bilirubin and drugs (Probable). Its main function is the regulation of the colloidal osmotic pressure of blood (Probable). Major zinc transporter in plasma, typically binds about 80% of all plasma zinc (PubMed:19021548). Major calcium and magnesium transporter in plasma, binds approximately 45% of circulating calcium and magnesium in plasma (By similarity). Potentially has more than two calcium-binding sites and might additionally bind calcium in a non-specific manner (By similarity). The shared binding site between zinc and calcium at residue Asp-273 suggests a crosstalk between zinc and calcium transport in the blood (By similarity). The rank order of affinity is zinc > calcium > magnesium (By similarity). Binds to the bacterial siderophore enterobactin and inhibits enterobactin-mediated iron uptake of E.coli from ferric transferrin, and may thereby limit the utilization of iron and growth of enteric bacteria such as E.coli (PubMed:6234017). Does not prevent iron uptake by the bacterial siderophore aerobactin (PubMed:6234017)
- Specific Function
- Antioxidant activity
- Gene Name
- ALB
- Uniprot ID
- P02768
- Uniprot Name
- Albumin
- Molecular Weight
- 69365.94 Da
References
- Czock D, Keller F, Rasche FM, Haussler U: Pharmacokinetics and pharmacodynamics of systemically administered glucocorticoids. Clin Pharmacokinet. 2005;44(1):61-98. doi: 10.2165/00003088-200544010-00003. [Article]
Transporters
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Inhibitor
- General Function
- Na(+)-independent transporter that mediates the cellular uptake of a broad range of organic anions such as the endogenous bile salts cholate and deoxycholate, either in their unconjugated or conjugated forms (taurocholate and glycocholate), at the plasmam membrane (PubMed:19129463, PubMed:7557095). Responsible for intestinal absorption of bile acids (By similarity). Transports dehydroepiandrosterone 3-sulfate (DHEAS), a major circulating steroid secreted by the adrenal cortex, as well as estrone 3-sulfate and 17beta-estradiol 17-O-(beta-D-glucuronate) (PubMed:11159893, PubMed:12568656, PubMed:19129463, PubMed:23918469, PubMed:25560245, PubMed:9539145). Mediates apical uptake of all-trans-retinol (atROL) across human retinal pigment epithelium, which is essential to maintaining the integrity of the visual cycle and thus vision (PubMed:25560245). Involved in the uptake of clinically used drugs (PubMed:17301733, PubMed:20686826, PubMed:27777271). Capable of thyroid hormone transport (both T3 or 3,3',5'-triiodo-L-thyronine, and T4 or L-tyroxine) (PubMed:19129463, PubMed:20358049). Also transports prostaglandin E2 (PubMed:19129463). Plays roles in blood-brain and -cerebrospinal fluid barrier transport of organic anions and signal mediators, and in hormone uptake by neural cells (By similarity). May also play a role in the reuptake of neuropeptides such as substance P/TAC1 and vasoactive intestinal peptide/VIP released from retinal neurons (PubMed:25132355). May play an important role in plasma and tissue distribution of the structurally diverse chemotherapeutic drugs methotrexate and paclitaxel (PubMed:23243220). Shows a pH-sensitive substrate specificity which may be ascribed to the protonation state of the binding site and leads to a stimulation of substrate transport in an acidic microenvironment (PubMed:19129463). Hydrogencarbonate/HCO3(-) acts as the probable counteranion that exchanges for organic anions (PubMed:19129463). May contribute to regulate the transport of organic compounds in testis across the blood-testis-barrier (Probable)
- Specific Function
- Bile acid transmembrane transporter activity
- Gene Name
- SLCO1A2
- Uniprot ID
- P46721
- Uniprot Name
- Solute carrier organic anion transporter family member 1A2
- Molecular Weight
- 74144.105 Da
References
- Bossuyt X, Muller M, Hagenbuch B, Meier PJ: Polyspecific drug and steroid clearance by an organic anion transporter of mammalian liver. J Pharmacol Exp Ther. 1996 Mar;276(3):891-6. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- SubstrateInducer
- General Function
- Translocates drugs and phospholipids across the membrane (PubMed:2897240, PubMed:35970996, PubMed:8898203, PubMed:9038218). Catalyzes the flop of phospholipids from the cytoplasmic to the exoplasmic leaflet of the apical membrane. Participates mainly to the flop of phosphatidylcholine, phosphatidylethanolamine, beta-D-glucosylceramides and sphingomyelins (PubMed:8898203). Energy-dependent efflux pump responsible for decreased drug accumulation in multidrug-resistant cells (PubMed:2897240, PubMed:35970996, PubMed:9038218)
- Specific Function
- Abc-type xenobiotic transporter activity
- Gene Name
- ABCB1
- Uniprot ID
- P08183
- Uniprot Name
- ATP-dependent translocase ABCB1
- Molecular Weight
- 141477.255 Da
References
- Yates CR, Chang C, Kearbey JD, Yasuda K, Schuetz EG, Miller DD, Dalton JT, Swaan PW: Structural determinants of P-glycoprotein-mediated transport of glucocorticoids. Pharm Res. 2003 Nov;20(11):1794-803. [Article]
- Matoulkova P, Pavek P, Maly J, Vlcek J: Cytochrome P450 enzyme regulation by glucocorticoids and consequences in terms of drug interaction. Expert Opin Drug Metab Toxicol. 2014 Mar;10(3):425-35. doi: 10.1517/17425255.2014.878703. Epub 2014 Jan 23. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Substrate
- General Function
- Functions as an organic anion/dicarboxylate exchanger that couples organic anion uptake indirectly to the sodium gradient (PubMed:14586168, PubMed:15644426, PubMed:15846473, PubMed:16455804, PubMed:31553721). Transports organic anions such as estrone 3-sulfate (E1S) and urate in exchange for dicarboxylates such as glutarate or ketoglutarate (2-oxoglutarate) (PubMed:14586168, PubMed:15846473, PubMed:15864504, PubMed:22108572, PubMed:23832370). Plays an important role in the excretion of endogenous and exogenous organic anions, especially from the kidney and the brain (PubMed:11306713, PubMed:14586168, PubMed:15846473). E1S transport is pH- and chloride-dependent and may also involve E1S/cGMP exchange (PubMed:26377792). Responsible for the transport of prostaglandin E2 (PGE2) and prostaglandin F2(alpha) (PGF2(alpha)) in the basolateral side of the renal tubule (PubMed:11907186). Involved in the transport of neuroactive tryptophan metabolites kynurenate and xanthurenate (PubMed:22108572, PubMed:23832370). Functions as a biopterin transporters involved in the uptake and the secretion of coenzymes tetrahydrobiopterin (BH4), dihydrobiopterin (BH2) and sepiapterin to urine, thereby determining baseline levels of blood biopterins (PubMed:28534121). May be involved in the basolateral transport of steviol, a metabolite of the popular sugar substitute stevioside (PubMed:15644426). May participate in the detoxification/ renal excretion of drugs and xenobiotics, such as the histamine H(2)-receptor antagonists fexofenadine and cimetidine, the antibiotic benzylpenicillin (PCG), the anionic herbicide 2,4-dichloro-phenoxyacetate (2,4-D), the diagnostic agent p-aminohippurate (PAH), the antiviral acyclovir (ACV), and the mycotoxin ochratoxin (OTA), by transporting these exogenous organic anions across the cell membrane in exchange for dicarboxylates such as 2-oxoglutarate (PubMed:11669456, PubMed:15846473, PubMed:16455804). Contributes to the renal uptake of potent uremic toxins (indoxyl sulfate (IS), indole acetate (IA), hippurate/N-benzoylglycine (HA) and 3-carboxy-4-methyl-5-propyl-2-furanpropionate (CMPF)), pravastatin, PCG, E1S and dehydroepiandrosterone sulfate (DHEAS), and is partly involved in the renal uptake of temocaprilat (an angiotensin-converting enzyme (ACE) inhibitor) (PubMed:14675047). May contribute to the release of cortisol in the adrenals (PubMed:15864504). Involved in one of the detoxification systems on the choroid plexus (CP), removes substrates such as E1S or taurocholate (TC), PCG, 2,4-D and PAH, from the cerebrospinal fluid (CSF) to the blood for eventual excretion in urine and bile (By similarity). Also contributes to the uptake of several other organic compounds such as the prostanoids prostaglandin E(2) and prostaglandin F(2-alpha), L-carnitine, and the therapeutic drugs allopurinol, 6-mercaptopurine (6-MP) and 5-fluorouracil (5-FU) (By similarity). Mediates the transport of PAH, PCG, and the statins pravastatin and pitavastatin, from the cerebrum into the blood circulation across the blood-brain barrier (BBB). In summary, plays a role in the efflux of drugs and xenobiotics, helping reduce their undesired toxicological effects on the body (By similarity)
- Specific Function
- Organic anion transmembrane transporter activity
- Gene Name
- SLC22A8
- Uniprot ID
- Q8TCC7
- Uniprot Name
- Organic anion transporter 3
- Molecular Weight
- 59855.585 Da
References
- VanWert AL, Gionfriddo MR, Sweet DH: Organic anion transporters: discovery, pharmacology, regulation and roles in pathophysiology. Biopharm Drug Dispos. 2010 Jan;31(1):1-71. doi: 10.1002/bdd.693. [Article]
Drug created at September 01, 2018 14:40 / Updated at September 16, 2024 01:22