Target type: molecularfunction
Combining with substance K, the peptide His-Lys-Thr-Asp-Ser-Phe-Val-Gly-Leu-Met, to initiate a change in cell activity. [GOC:mah, ISBN:0198506732]
Substance K receptor activity, also known as neurokinin-1 receptor (NK1R) activity, plays a crucial role in the regulation of various physiological processes, primarily within the nervous system. NK1R is a G protein-coupled receptor (GPCR) that is activated by the neuropeptide substance K (also known as neurokinin A). Upon substance K binding, the receptor undergoes conformational changes, triggering a cascade of intracellular signaling events.
This activation leads to the stimulation of phospholipase C (PLC), resulting in the production of inositol triphosphate (IP3) and diacylglycerol (DAG). IP3 mobilizes intracellular calcium stores, leading to calcium-mediated signaling pathways. DAG activates protein kinase C (PKC), initiating phosphorylation cascades that regulate downstream effector proteins.
The signaling pathways activated by NK1R are involved in a wide range of physiological functions, including:
* **Neuromodulation:** NK1R activity contributes to the regulation of pain perception, anxiety, stress, and mood.
* **Gastrointestinal function:** NK1R is involved in the regulation of gastrointestinal motility, secretion, and inflammation.
* **Respiratory function:** NK1R plays a role in bronchoconstriction and airway inflammation.
* **Cardiovascular function:** NK1R activity can influence blood pressure and heart rate.
* **Immune function:** NK1R is implicated in immune responses, including inflammation and the activation of mast cells.
Dysregulation of NK1R activity has been linked to various pathological conditions, including:
* **Pain disorders:** Chronic pain syndromes, such as migraine, neuropathic pain, and inflammatory pain.
* **Psychiatric disorders:** Anxiety, depression, and post-traumatic stress disorder.
* **Gastrointestinal disorders:** Irritable bowel syndrome, inflammatory bowel disease, and nausea and vomiting.
* **Respiratory disorders:** Asthma, chronic obstructive pulmonary disease (COPD), and allergic rhinitis.
The understanding of NK1R activity has led to the development of therapeutic agents, such as NK1R antagonists, which are used to treat a range of conditions, particularly pain and nausea. Research into the mechanisms of NK1R activation and its role in various physiological processes continues to provide insights into potential targets for drug development and the treatment of disease.'
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| Protein | Definition | Taxonomy |
|---|---|---|
| Substance-K receptor | A substance-K receptor that is encoded in the genome of human. [PRO:WCB, UniProtKB:P21452] | Homo sapiens (human) |
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| 4-nonylphenol | 4-nonylphenol : A member of the class of phenols that is phenol which is para-substituted with a nonyl group. 4-nonylphenol: structure in first source; see also record for nonylphenol | phenols | environmental contaminant |
| amiodarone | amiodarone : A member of the class of 1-benzofurans that is 1-benzofuran substituted by a butyl group at position 2 and a 4-[2-(diethylamino)ethoxy]-3,5-diiodobenzoyl group at position 3. It is a cardiovascular drug used for the treatment of cardiac dysrhythmias. Amiodarone: An antianginal and class III antiarrhythmic drug. It increases the duration of ventricular and atrial muscle action by inhibiting POTASSIUM CHANNELS and VOLTAGE-GATED SODIUM CHANNELS. There is a resulting decrease in heart rate and in vascular resistance. | 1-benzofurans; aromatic ketone; organoiodine compound; tertiary amino compound | cardiovascular drug |
| astemizole | astemizole : A piperidine compound having a 2-(4-methoxyphenyl)ethyl group at the 1-position and an N-[(4-fluorobenzyl)benzimidazol-2-yl]amino group at the 4-position. Astemizole: Antihistamine drug now withdrawn from the market in many countries because of rare but potentially fatal side effects. | benzimidazoles; piperidines | anti-allergic agent; anticoronaviral agent; H1-receptor antagonist |
| bithionol | bithionol : An aryl sulfide that is diphenyl sulfide in which each phenyl group is substituted at position 2 by hydroxy and at positions 3 and 5 by chlorine. A fungicide and anthelmintic, it was used in various topical drug products for the treatment of liver flukes, but withdrawn after being shown to be a potent photosensitizer with the potential to cause serious skin disorders. Bithionol: Halogenated anti-infective agent that is used against trematode and cestode infestations. | aryl sulfide; bridged diphenyl antifungal drug; bridged diphenyl fungicide; dichlorobenzene; organochlorine pesticide; polyphenol | antifungal agrochemical; antiplatyhelmintic drug |
| chlorpromazine | chlorpromazine : A substituted phenothiazine in which the ring nitrogen at position 10 is attached to C-3 of an N,N-dimethylpropanamine moiety. Chlorpromazine: The prototypical phenothiazine antipsychotic drug. Like the other drugs in this class chlorpromazine's antipsychotic actions are thought to be due to long-term adaptation by the brain to blocking DOPAMINE RECEPTORS. Chlorpromazine has several other actions and therapeutic uses, including as an antiemetic and in the treatment of intractable hiccup. | organochlorine compound; phenothiazines; tertiary amine | anticoronaviral agent; antiemetic; dopaminergic antagonist; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; phenothiazine antipsychotic drug |
| ciglitazone | ciglitazone : An aromatic ether that consists of 1,3-thiazolidine-2,4-dione with position 5 substituted by a 4-[(1-methylcyclohexyl)methoxy]benzyl group. A selective PPARgamma agonist. ciglitazone: structure given in second source; PPAR agonist used for type II diabetes | aromatic ether; thiazolidinone | antineoplastic agent; insulin-sensitizing drug |
| clotrimazole | conazole antifungal drug; imidazole antifungal drug; imidazoles; monochlorobenzenes | antiinfective agent; environmental contaminant; xenobiotic | |
| ebastine | organic molecular entity | ||
| econazole | 1-{2-(4-chlorobenzyloxy)-2-(2,4-dichlorophenyl)ethyl}imidazole : A member of the class of imidazoles that is 1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethanol in which the hydroxyl hydrogen is replaced by a 4-chlorobenzyl group. econazole : A racemate composed of equimolar amounts of (R)- and (S)-econazole. Used (as its nitrate salt) to treat skin infections such as athlete's foot, jock itch, ringworm and other fungal skin infections. Econazole: An imidazole derivative that is commonly used as a topical antifungal agent. | dichlorobenzene; ether; imidazoles; monochlorobenzenes | |
| fluphenazine | N-alkylpiperazine; organofluorine compound; phenothiazines | anticoronaviral agent; dopaminergic antagonist; phenothiazine antipsychotic drug | |
| haloprogin | haloprogin: minor descriptor (73-86); on-line & INDEX MEDICUS search PHENYL ETHERS (73-86) | aromatic ether | |
| hexachlorophene | hexachlorophene : An organochlorine compound that is diphenylmethane in which each of the phenyl groups is substituted by chlorines at positions 2, 3, and 5, and by a hydroxy group at position 6. An antiseptic that is effective against Gram-positive organisms, it is used in soaps and creams for the treatment of various skin disorders. It is also used in agriculture as an acaricide and fungicide, but is not approved for such use within the European Union. Hexachlorophene: A chlorinated bisphenol antiseptic with a bacteriostatic action against Gram-positive organisms, but much less effective against Gram-negative organisms. It is mainly used in soaps and creams and is an ingredient of various preparations used for skin disorders. (From Martindale, The Extra Pharmacopoeia, 30th ed, p797) | bridged diphenyl fungicide; polyphenol; trichlorobenzene | acaricide; antibacterial agent; antifungal agrochemical; antiseptic drug |
| ketoconazole | 1-acetyl-4-(4-{[2-(2,4-dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy}phenyl)piperazine : A dioxolane that is 1,3-dioxolane which is substituted at positions 2, 2, and 4 by imidazol-1-ylmethyl, 2,4-dichlorophenyl, and [para-(4-acetylpiperazin-1-yl)phenoxy]methyl groups, respectively. | dichlorobenzene; dioxolane; ether; imidazoles; N-acylpiperazine; N-arylpiperazine | |
| miconazole | 1-[2-(2,4-dichlorobenzyloxy)-2-(2,4-dichlorophenyl)ethyl]imidazole : A member of the class of imidazoles that is 1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethanol in which the hydroxyl hydrogen is replaced by a 2,4-dichlorobenzyl group. miconazole : A racemate composed of equimolar amounts of (R)- and (S)-miconazole. Used (as its nitrate salt) to treat skin infections such as athlete's foot, jock itch, ringworm and other fungal skin infections. It inhibits the synthesis of ergosterol, a critical component of fungal cell membranes. Miconazole: An imidazole antifungal agent that is used topically and by intravenous infusion. | dichlorobenzene; ether; imidazoles | |
| raloxifene | raloxifene : A member of the class of 1-benzothiophenes that is 1-benzothiophene in which the hydrogens at positions 2, 3, and 6 have been replaced by p-hydroxyphenyl, p-[2-(piperidin-1-yl)ethoxy]benzoyl, and hydroxy groups, respectively. | 1-benzothiophenes; aromatic ketone; N-oxyethylpiperidine; phenols | bone density conservation agent; estrogen antagonist; estrogen receptor modulator |
| sulconazole | 1-{2-[(4-chlorobenzyl)sulfanyl]-2-(2,4-dichlorophenyl)ethyl}-1H-imidazole : A member of the class of imidazoles that is 1-ethyl-1H-imidazole in which one of the hydrogens of the methyl group is replaced by a (4-chlorobenzyl)sulfanediyl group while a second is replaced by a 2,4-dichlorophenyl group. sulconazole : A racemate comprising equimolar amounts of (R)- and (S)-sulconazole. An antifungal agent with activity against Candida species, it is used (generally as the nitrate salt) for the topical treatment of fungal skin infections. sulconazole: RN given refers to cpd with unspecified isomeric designation; structure given in first source | dichlorobenzene; imidazoles; monochlorobenzenes; organic sulfide | |
| terfenadine | Terfenadine: A selective histamine H1-receptor antagonist devoid of central nervous system depressant activity. The drug was used for ALLERGY but withdrawn due to causing LONG QT SYNDROME. | diarylmethane | |
| benzethonium chloride | benzethonium chloride : A (synthetic) quaternary ammonium salt that is benzyldimethylamine in which the nitrogen is quaternised by a 2-{2-[p-(2,4,4-trimethylpentan-2-yl)phenoxy]ethoxy}ethyl group, with chloride as the counter-ion. An antiseptic and disinfectant, it is active against a broad spectrum of bacteria, fungi, moulds and viruses. | aromatic ether; chloride salt; quaternary ammonium salt | antibacterial agent; antifungal agent; antiseptic drug; antiviral agent; disinfectant |
| sterogenol | cetylpyridinium bromide : A pyridinium salt that has N-hexadecylpyridinium as the cation and bromide as the anion. hexadecylpyridinium bromide: structure in first source | bromide salt; pyridinium salt | antiseptic drug; EC 2.7.11.18 (myosin-light-chain kinase) inhibitor; surfactant |
| gentian violet | crystal violet : An organic chloride salt that is the monochloride salt of crystal violet cation. It has been used in creams for the topical treatment of bacterial and fungal infections, being effective against some Gram-positive bacteria (notably Staphylococcus species) and some pathogenic fungi (including Candida species) but use declined following reports of animal carcinogenicity. It has also been used for dying wood, silk, and paper, as well as a histological stain. Gentian Violet: A dye that is a mixture of violet rosanilinis with antibacterial, antifungal, and anthelmintic properties. | organic chloride salt | anthelminthic drug; antibacterial agent; antifungal agent; antiseptic drug; histological dye |
| alpha-naphthoflavone | alpha-naphthoflavone : An extended flavonoid resulting from the formal fusion of a benzene ring with the h side of flavone. A synthetic compound, it is an inhibitor of aromatase (EC 1.14.14.14). alpha-naphthoflavone: inhibits P4501A1 and P4501A2; stimulates some activities of P4503A4 | extended flavonoid; naphtho-gamma-pyrone; organic heterotricyclic compound | aryl hydrocarbon receptor agonist; aryl hydrocarbon receptor antagonist; EC 1.14.14.14 (aromatase) inhibitor |
| 4-octylphenol | 4-octylphenol : A member of the class of phenols that is phenol which is substituted at the para- position by an octyl group. 4-octylphenol: xenoestrogen | phenols | metabolite; surfactant; xenoestrogen |
| danazol | Danazol: A synthetic steroid with antigonadotropic and anti-estrogenic activities that acts as an anterior pituitary suppressant by inhibiting the pituitary output of gonadotropins. It possesses some androgenic properties. Danazol has been used in the treatment of endometriosis and some benign breast disorders. | 17beta-hydroxy steroid; terminal acetylenic compound | anti-estrogen; estrogen antagonist; geroprotector |
| metergoline | metergoline : An ergoline alkaloid that is the N-benzyloxycarbonyl derivative of lysergamine. A 5-HT2 antagonist. Also 5-HT1 antagonist and 5-HT1D ligand. Has moderate affinity for 5-HT6 and high affinity for 5-HT7. Metergoline: A dopamine agonist and serotonin antagonist. It has been used similarly to BROMOCRIPTINE as a dopamine agonist and also for MIGRAINE DISORDERS therapy. | carbamate ester; ergoline alkaloid | dopamine agonist; geroprotector; serotonergic antagonist |
| paclitaxel | Taxus: Genus of coniferous yew trees or shrubs, several species of which have medicinal uses. Notable is the Pacific yew, Taxus brevifolia, which is used to make the anti-neoplastic drug taxol (PACLITAXEL). | taxane diterpenoid; tetracyclic diterpenoid | antineoplastic agent; human metabolite; metabolite; microtubule-stabilising agent |
| substance p | peptide | neurokinin-1 receptor agonist; neurotransmitter; vasodilator agent | |
| lovastatin | lovastatin : A fatty acid ester that is mevastatin carrying an additional methyl group on the carbobicyclic skeleton. It is used in as an anticholesteremic drug and has been found in fungal species such as Aspergillus terreus and Pleurotus ostreatus (oyster mushroom). Lovastatin: A fungal metabolite isolated from cultures of Aspergillus terreus. The compound is a potent anticholesteremic agent. It inhibits 3-hydroxy-3-methylglutaryl coenzyme A reductase (HYDROXYMETHYLGLUTARYL COA REDUCTASES), which is the rate-limiting enzyme in cholesterol biosynthesis. It also stimulates the production of low-density lipoprotein receptors in the liver. | delta-lactone; fatty acid ester; hexahydronaphthalenes; polyketide; statin (naturally occurring) | anticholesteremic drug; antineoplastic agent; Aspergillus metabolite; prodrug |
| nelfinavir | nelfinavir : An aryl sulfide that is used (as its mesylate salt) for treatment of HIV and also exhibits some anticancer properties. Nelfinavir: A potent HIV protease inhibitor. It is used in combination with other antiviral drugs in the treatment of HIV in both adults and children. | aryl sulfide; benzamides; organic heterobicyclic compound; phenols; secondary alcohol; tertiary amino compound | antineoplastic agent; HIV protease inhibitor |
| sr 48968 | SR 48968: structure given in first source; neurokinin A antagonist; tachykinin receptor antagonist; SR 48965 is the inactive R-enantiomer of SR 48968 | ||
| senktide | |||
| neurokinin a(4-10), tyr(5)-trp(6,8,9)-lys(10)- | neurokinin A(4-10), Tyr(5)-Trp(6,8,9)-Lys(10)-: tachykinin receptor antagonist | ||
| 3,5-bis(trifluoromethyl)benzyl n-acetyltryptophan | 3,5-bis(trifluoromethyl)benzyl N-acetyltryptophan: structure given in first source; substance P and neurokinin receptor antagonist | ||
| docetaxel | hydrate; secondary alpha-hydroxy ketone | antineoplastic agent | |
| neurokinin a (4-10), nle(10)- | |||
| sr 142806 | |||
| ritonavir | ritonavir : An L-valine derivative that is L-valinamide in which alpha-amino group has been acylated by a [(2-isopropyl-1,3-thiazol-4-yl)methyl]methylcarbamoyl group and in which a hydrogen of the carboxamide amino group has been replaced by a (2R,4S,5S)-4-hydroxy-1,6-diphenyl-5-{[(1,3-thiazol-5-ylmethoxy)carbonyl]amino}hexan-2-yl group. A CYP3A inhibitor and antiretroviral drug from the protease inhibitor class used to treat HIV infection and AIDS, it is often used as a fixed-dose combination with another protease inhibitor, lopinavir. Also used in combination with dasabuvir sodium hydrate, ombitasvir and paritaprevir (under the trade name Viekira Pak) for treatment of chronic hepatitis C virus genotype 1 infection as well as cirrhosis of the liver. Ritonavir: An HIV protease inhibitor that works by interfering with the reproductive cycle of HIV. It also inhibits CYTOCHROME P-450 CYP3A. | 1,3-thiazoles; carbamate ester; carboxamide; L-valine derivative; ureas | antiviral drug; environmental contaminant; HIV protease inhibitor; xenobiotic |
| saquinavir | saquinavir : An aspartic acid derivative obtained by formal condensation of the primary amino group of (2S,3R)-4-[(3S,4aS,8aS)-3-(tert-butylcarbamoyl)octahydroisoquinolin-2(1H)-yl]-3-hydroxy-1-phenylbutan-2-ylamine with the carboxy group of N(2)(-quinolin-2-ylcarbonyl)-L-asparagine. An inhibitor of HIV-1 protease. Saquinavir: An HIV protease inhibitor which acts as an analog of an HIV protease cleavage site. It is a highly specific inhibitor of HIV-1 and HIV-2 proteases, and also inhibits CYTOCHROME P-450 CYP3A. | L-asparagine derivative; quinolines | antiviral drug; HIV protease inhibitor |
| diethylstilbestrol | diethylstilbestrol : An olefinic compound that is trans-hex-3-ene in which the hydrogens at positions 3 and 4 have been replaced by p-hydroxyphenyl groups. Diethylstilbestrol: A synthetic nonsteroidal estrogen used in the treatment of menopausal and postmenopausal disorders. It was also used formerly as a growth promoter in animals. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), diethylstilbestrol has been listed as a known carcinogen. (Merck, 11th ed) | olefinic compound; polyphenol | antifungal agent; antineoplastic agent; autophagy inducer; calcium channel blocker; carcinogenic agent; EC 1.1.1.146 (11beta-hydroxysteroid dehydrogenase) inhibitor; EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor; endocrine disruptor; xenoestrogen |
| (1S,2R)-2-(octylamino)-1-[4-(propan-2-ylthio)phenyl]-1-propanol | alkylbenzene | ||
| enclomiphene | Enclomiphene: The trans or (E)-isomer of clomiphene. | ||
| tamoxifen | stilbenoid; tertiary amino compound | angiogenesis inhibitor; antineoplastic agent; bone density conservation agent; EC 1.2.3.1 (aldehyde oxidase) inhibitor; EC 2.7.11.13 (protein kinase C) inhibitor; estrogen antagonist; estrogen receptor antagonist; estrogen receptor modulator | |
| montelukast | montelukast: a leukotriene D4 receptor antagonist | aliphatic sulfide; monocarboxylic acid; quinolines | anti-arrhythmia drug; anti-asthmatic drug; leukotriene antagonist |
| cyclosporine | ramihyphin A: one of the metabolites produced by Fusarium sp. S-435; RN given refers to cpd with unknown MF | homodetic cyclic peptide | anti-asthmatic drug; anticoronaviral agent; antifungal agent; antirheumatic drug; carcinogenic agent; dermatologic drug; EC 3.1.3.16 (phosphoprotein phosphatase) inhibitor; geroprotector; immunosuppressive agent; metabolite |
| neurokinin a | Neurokinin A: A mammalian neuropeptide of 10 amino acids that belongs to the tachykinin family. It is similar in structure and action to SUBSTANCE P and NEUROKININ B with the ability to excite neurons, dilate blood vessels, and contract smooth muscles, such as those in the BRONCHI. | ||
| neurokinin b | Neurokinin B: A mammalian neuropeptide of 10 amino acids that belongs to the tachykinin family. It is similar in structure and action to SUBSTANCE P and NEUROKININ A with the ability to excite neurons, dilate blood vessels, and contract smooth muscles, such as those in the URINARY BLADDER and UTERUS. | polypeptide | |
| sb 223412 | SB 223412: SB-223412 is the (S)-(-)-isomer; RN given for (S)-isomer; structure in first source | ||
| vinorelbine | acetate ester; methyl ester; organic heteropentacyclic compound; organic heterotetracyclic compound; ring assembly; vinca alkaloid | antineoplastic agent; photosensitizing agent | |
| oxiconazole | oxiconazole : An oxime O-ether that is the 2,4-dichlorobenzyl ether of the oxime obtained by formal condensation of hydroxylamine with the carbonyl group of acetopnenone in which the phenyl group is substituted by chlorines at positions 2 and 4, and in which one of the hydrogens of the methyl group is replaced by a 1H-imidazol-1-yl group. An antifungal agent, it is used (generally as the nitrate salt) in creams and powders for the topical treatment of fungal skin infections. oxiconazole: RN given refers to parent cpd(Z)-isomer; structure given in first source | conazole antifungal drug; dichlorobenzene; imidazole antifungal drug; imidazoles; oxime O-ether | antiinfective agent |
| indinavir sulfate | Indinavir: A potent and specific HIV protease inhibitor that appears to have good oral bioavailability. | dicarboxylic acid diamide; N-(2-hydroxyethyl)piperazine; piperazinecarboxamide | HIV protease inhibitor |
| gr 94800 | GR 94800: a selective NK2 heptapeptide antagonist | ||
| gw 1929 | GW 1929: activates peroxisome proliferator-activated receptor-gamma; structure in first source | benzophenones | |
| sb 222200 | quinolines | ||
| sb 218795 | SB 218795: structure in first source | quinolines | |
| pmx 53 | |||
| men 11558 | |||
| zd 6021 | ZD 6021: structure in first source | ||
| men 11420 | |||
| pexacerfont | pyrazolopyridine | ||
| sr 144190 | SR 144190: structure in first source | ||
| dnk 333 | DNK 333: a dual neurokinin NK1/NK2 receptor antagonist; structure in first source | ||
| 4-n-butyl-1-(4-(2-methylphenyl)-4-oxo-1-butyl)-piperidine hydrogen chloride | |||
| way 207024 | |||
| ibodutant | 6-methylbenzo(b)thiophene-2-carboxylic acid (1-(2-phenyl-((1-(tetrahydropyran-4-ylmethyl)piperidin-4-ylmethyl)carbamoyl)ethylcarbamoyl)cyclophenyl)amide: a tachykinin NK2 receptor antagonist; structure in first source | ||
| serlopitant | |||
| l 742694 | L 742694: a neurokinin-1 receptor antagonist; structure given in first source |