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| Name | Quinine | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accession Number | DB00468 (APRD00563) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Type | small molecule | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Groups | approved | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Description | An alkaloid derived from the bark of the cinchona tree. It is used as an antimalarial drug, and is the active ingredient in extracts of the cinchona that have been used for that purpose since before 1633. Quinine is also a mild antipyretic and analgesic and has been used in common cold preparations for that purpose. It was used commonly and as a bitter and flavoring agent, and is still useful for the treatment of babesiosis. Quinine is also useful in some muscular disorders, especially nocturnal leg cramps and myotonia congenita, because of its direct effects on muscle membrane and sodium channels. The mechanisms of its antimalarial effects are not well understood. [PubChem] |
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| Structure |
Download: MOL | SDF | SMILES | InChI Display: 2D Structure | 3D Structure |
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| Synonyms |
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| Salts | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Brand names |
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| CAS number | 130-95-0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Weight |
Average: 324.4168 Monoisotopic: 324.183778022 |
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| Chemical Formula | C20H24N2O2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| InChI Key | InChIKey=LOUPRKONTZGTKE-WZBLMQSHSA-N | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| InChI |
InChI=1S/C20H24N2O2/c1-3-13-12-22-9-7-14(13)10-19(22)20(23)16-6-8-21-18-5-4-15(24-2)11-17(16)18/h3-6,8,11,13-14,19-20,23H,1,7,9-10,12H2,2H3/t13-,14-,19-,20+/m0/s1
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| IUPAC Name |
(R)-[(1S,2S,4S,5R)-5-ethenyl-1-azabicyclo[2.2.2]octan-2-yl](6-methoxyquinolin-4-yl)methanol
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| SMILES |
[H][C@]1(C[C@@H]2CC[N@]1C[C@@H]2C=C)[C@H](O)C1=CC=NC2=CC=C(OC)C=C12
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| Mass Spec | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomy | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Kingdom | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Classes | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Substructures | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Pharmacology | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Indication | For the treatment of malaria and leg cramps | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Pharmacodynamics | Quinine is used parenterally to treat life-threatening infections caused by chloroquine-resistant Plasmodium falciparum malaria. Quinine acts as a blood schizonticide although it also has gametocytocidal activity against P. vivax and P. malariae. Because it is a weak base, it is concentrated in the food vacuoles of P. falciparum. It is thought to act by inhibiting heme polymerase, thereby allowing accumulation of its cytotoxic substrate, heme. As a schizonticidal drug, it is less effective and more toxic than chloroquine. However, it has a special place in the management of severe falciparum malaria in areas with known resistance to chloroquine. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mechanism of action | The theorized mechanism of action for quinine and related anti-malarial drugs is that these drugs are toxic to the malaria parasite. Specifically, the drugs interfere with the parasite's ability to break down and digest hemoglobin. Consequently, the parasite starves and/or builds up toxic levels of partially degraded hemoglobin in itself. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Absorption | 76 - 88% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Protein binding | Approximately 70% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Metabolism | Hepatic, over 80% metabolized by the liver. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Route of elimination | Quinine is eliminated primarily via hepatic biotransformation. Approximately 20% of quinine is excreted unchanged in urine. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Half life | Approximately 18 hours | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Clearance |
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| Toxicity | Quinine is a documented causative agent of drug induced thrombocytopenia (DIT). Thrombocytopenia is a low amount of platelets in the blood. Quinine induces production of antibodies against glycoprotein (GP) Ib-IX complex in the majority of cases of DIT, or more rarely, the platelet-glycoprotein complex GPIIb-IIIa. Increased antibodies against these complexes increases platelet clearance, leading to the observed thrombocytopenia. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Pathways | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Prices |
DrugBank does not sell nor buy drugs. Pricing information is supplied for informational
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| Patents | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Properties | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| State | solid | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Experimental Properties |
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| Predicted Properties |
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| Synthesis Reference | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| PDB Entries | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FDA label | show (718 KB) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| MSDS | show (72.1 KB) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Targets |
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Pharmacological action: yes
Actions: antagonist References:
Pharmacological action: unknown
Actions: other The GPIb-V-IX complex functions as the von Willebrand factor receptor and mediates von willebrand factor-dependent platelet adhesion to blood vessels. The adhesion of platelets to injured vascular surfaces in the arterial circulation is a critical initiating event in hemostasis. GP-IX may provide for membrane insertion and orientation of GP-Ib Organism class: humanUniProt ID: P14770 ![]() Gene: GP9 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
3. Intermediate conductance calcium-activated potassium channel protein 4 Pharmacological action: unknownActions: inhibitor Forms a voltage-independent potassium channel that is activated by intracellular calcium. Activation is followed by membrane hyperpolarization which promotes calcium influx. The channel is blocked by clotrimazole and charybdotoxin but is insensitive to apamin Organism class: humanUniProt ID: O15554 ![]() Gene: KCNN4 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
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| Enzymes |
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Actions: substrate
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics UniProt ID: P20815![]() Gene: CYP3A5 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Actions: substrate, inhibitor, inducer
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Most active in catalyzing 2-hydroxylation. Caffeine is metabolized primarily by cytochrome CYP1A2 in the liver through an initial N3-demethylation. Also acts in the metabolism of aflatoxin B1 and acetaminophen UniProt ID: P05177![]() Gene: CYP1A2 Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Actions: substrate, inhibitor
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. In the epoxidation of arachidonic acid it generates only 14,15- and 11,12-cis-epoxyeicosatrienoic acids. It is the principal enzyme responsible for the metabolism the anti- cancer drug paclitaxel (taxol) UniProt ID: P10632![]() Gene: CYP2C8 Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Actions: substrate, inhibitor
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. This enzyme contributes to the wide pharmacokinetics variability of the metabolism of drugs such as S- warfarin, diclofenac, phenytoin, tolbutamide and losartan UniProt ID: P11712![]() Gene: CYP2C9 Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Actions: substrate, inhibitor
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 UniProt ID: P33261![]() Gene: CYP2C19 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Actions: substrate
Metabolizes several precarcinogens, drugs, and solvents to reactive metabolites. Inactivates a number of drugs and xenobiotics and also bioactivates many xenobiotic substrates to their hepatotoxic or carcinogenic forms UniProt ID: P05181![]() Gene: CYP2E1 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Actions: substrate
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics UniProt ID: P24462![]() Gene: CYP3A7 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Actions: inhibitor, inducer
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics UniProt ID: P04798![]() Gene: CYP1A1 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Actions: substrate, inhibitor, inducer
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4- hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. The enzyme also hydroxylates etoposide UniProt ID: P08684![]() Gene: CYP3A4 Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Actions: substrate, inhibitor
Responsible for the metabolism of many drugs and environmental chemicals that it oxidizes. It is involved in the metabolism of drugs such as antiarrhythmics, adrenoceptor antagonists, and tricyclic antidepressants UniProt ID: P10635![]() Gene: CYP2D6 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
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| Transporters |
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1. Solute carrier family 22 member 2 Actions: inhibitorMediates tubular uptake of organic compounds from circulation. Mediates the influx of agmatine, dopamine, noradrenaline (norepinephrine), serotonin, choline, famotidine, ranitidine, histamin, creatinine, amantadine, memantine, acriflavine, 4-[4-(dimethylamino)-styryl]-N-methylpyridinium ASP, amiloride, metformin, N-1-methylnicotinamide (NMN), tetraethylammonium (TEA), 1-methyl-4-phenylpyridinium (MPP), cimetidine, cisplatin and oxaliplatin. Cisplatin may develop a nephrotoxic action. Transport of creatinine is inhibited by fluoroquinolones such as DX-619 and LVFX. This transporter is a major determinant of the anticancer activity of oxaliplatin and may contribute to antitumor specificity UniProt ID: O15244![]() Gene: SLC22A2 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
2. Solute carrier family 22 member 1 Actions: substrate, inhibitorTranslocates a broad array of organic cations with various structures and molecular weights including the model compounds 1-methyl-4-phenylpyridinium (MPP), tetraethylammonium (TEA), N-1-methylnicotinamide (NMN), 4-(4-(dimethylamino)styryl)- N-methylpyridinium (ASP), the endogenous compounds choline, guanidine, histamine, epinephrine, adrenaline, noradrenaline and dopamine, and the drugs quinine, and metformin. The transport of organic cations is inhibited by a broad array of compounds like tetramethylammonium (TMA), cocaine, lidocaine, NMDA receptor antagonists, atropine, prazosin, cimetidine, TEA and NMN, guanidine, cimetidine, choline, procainamide, quinine, tetrabutylammonium, and tetrapentylammonium. Translocates organic cations in an electrogenic and pH-independent manner. Translocates organic cations across the plasma membrane in both directions. Transports the polyamines spermine and spermidine. Transports pramipexole across the basolateral membrane of the proximal tubular epithelial cells. The choline transport is activated by MMTS. Regulated by various intracellular signaling pathways including inhibition by protein kinase A activation, and endogenously activation by the calmodulin complex, the calmodulin- dependent kinase II and LCK tyrosine kinase UniProt ID: O15245![]() Gene: SLC22A1 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
3. Organic cation/carnitine transporter 2 Actions: inhibitorSodium-ion dependent, high affinity carnitine transporter. Involved in the active cellular uptake of carnitine. Transports one sodium ion with one molecule of carnitine. Also transports organic cations such as tetraethylammonium (TEA) without the involvement of sodium. Also Relative uptake activity ratio of carnitine to TEA is 11.3 UniProt ID: O76082![]() Gene: SLC22A5 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
4. Multidrug resistance protein 1 Actions: substrate, inhibitorEnergy-dependent efflux pump responsible for decreased drug accumulation in multidrug-resistant cells UniProt ID: P08183![]() Gene: ABCB1 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
5. Solute carrier organic anion transporter family member 1A2 Actions: inhibitorMediates the Na(+)-independent transport of organic anions such as sulfobromophthalein (BSP) and conjugated (taurocholate) and unconjugated (cholate) bile acids (By similarity) UniProt ID: P46721![]() Gene: SLCO1A2 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
6. Organic cation/carnitine transporter 1 Actions: inhibitorSodium-ion dependent, low affinity carnitine transporter. Probably transports one sodium ion with one molecule of carnitine. Also transports organic cations such as tetraethylammonium (TEA) without the involvement of sodium. Relative uptake activity ratio of carnitine to TEA is 1.78. A key substrate of this transporter seems to be ergothioneine (ET) UniProt ID: Q9H015![]() Gene: SLC22A4 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
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