Target type: biologicalprocess
Any process which stops, prevents, or reduces the frequency, rate or extent of cAMP-mediated signaling. [GOC:jl]
Negative regulation of cAMP-mediated signaling is a critical cellular process that ensures appropriate and controlled responses to various stimuli. cAMP (cyclic adenosine monophosphate) is a ubiquitous second messenger that plays a crucial role in diverse cellular functions, including gene expression, cell growth, and metabolism. The cAMP signaling pathway is initiated by the activation of G protein-coupled receptors (GPCRs) by extracellular ligands. Ligand binding to GPCRs triggers a cascade of events involving the activation of adenylyl cyclase, an enzyme responsible for catalyzing the conversion of ATP to cAMP. Increased cAMP levels activate protein kinase A (PKA), a serine/threonine kinase that phosphorylates various downstream targets, leading to a multitude of cellular responses. To maintain cellular homeostasis and prevent excessive cAMP signaling, cells employ a variety of mechanisms to negatively regulate this pathway. These regulatory mechanisms encompass multiple levels, including:
**1. Regulation of GPCR activity:** GPCR desensitization and downregulation are crucial mechanisms for attenuating cAMP signaling. Desensitization involves phosphorylation of the activated GPCR by G protein-coupled receptor kinases (GRKs), leading to the recruitment of arrestin proteins. Arrestins bind to phosphorylated GPCRs, preventing further activation of G proteins and promoting internalization of the receptor. Downregulation involves the removal of GPCRs from the cell surface via endocytosis, decreasing the number of available receptors for ligand binding.
**2. Regulation of adenylyl cyclase activity:** Adenylyl cyclase activity can be regulated by multiple factors. One key mechanism involves the inhibitory G protein (Gi), which is activated by specific GPCRs. Gi inhibits adenylyl cyclase, reducing cAMP production. Furthermore, intracellular calcium levels can also regulate adenylyl cyclase activity, with high calcium levels often leading to inhibition.
**3. Regulation of cAMP degradation:** cAMP levels are tightly controlled by the enzyme phosphodiesterase (PDE), which catalyzes the hydrolysis of cAMP to inactive AMP. PDE activity can be regulated by various factors, including phosphorylation, protein-protein interactions, and second messengers like calcium.
**4. Regulation of PKA activity:** PKA activity can be regulated by several mechanisms, including: a) the binding of cAMP to regulatory subunits of PKA, which releases the catalytic subunits and activates their kinase activity. b) phosphorylation of PKA by other kinases, which can modulate its activity. c) interaction of PKA with scaffolding proteins, which can target PKA to specific subcellular locations.
**5. Regulation of downstream targets:** The cellular effects of cAMP signaling are mediated by the phosphorylation of downstream targets by PKA. These downstream targets include transcription factors, ion channels, and enzymes. The phosphorylation of these targets can either activate or inhibit their function, depending on the specific target.
**6. Negative feedback loops:** Many components of the cAMP signaling pathway are involved in negative feedback loops that help to dampen the signal. For example, PKA can phosphorylate and inhibit adenylyl cyclase, reducing cAMP production. Similarly, some downstream targets of PKA can inhibit the activity of GPCRs or adenylyl cyclase.
**In summary**, negative regulation of cAMP-mediated signaling is a complex and multifaceted process that involves multiple levels of control. These regulatory mechanisms ensure that cAMP signaling is appropriately balanced, preventing excessive or inappropriate activation of the pathway and maintaining cellular homeostasis. '"
Protein | Definition | Taxonomy |
---|---|---|
Mu-type opioid receptor | A mu-type opioid receptor that is encoded in the genome of cow. [OMA:P79350, PRO:DNx] | Bos taurus (cattle) |
cGMP-dependent 3',5'-cyclic phosphodiesterase | A cGMP-dependent 3,5-cyclic phosphodiesterase that is encoded in the genome of human. [PRO:DNx, UniProtKB:O00408] | Homo sapiens (human) |
Dual 3',5'-cyclic-AMP and -GMP phosphodiesterase 11A | A dual 3,5-cyclic-AMP and -GMP phosphodiesterase 11A that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9HCR9] | Homo sapiens (human) |
Lysophosphatidic acid receptor 1 | A lysophosphatidic acid receptor 1 that is encoded in the genome of human. [PRO:WCB, UniProtKB:Q92633] | Homo sapiens (human) |
cGMP-inhibited 3',5'-cyclic phosphodiesterase A | A cGMP-inhibited 3,5-cyclic phosphodiesterase 3A that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q14432] | Homo sapiens (human) |
Nociceptin receptor | A nociceptin receptor that is encoded in the genome of human. [PRO:WCB, UniProtKB:P41146] | Homo sapiens (human) |
Apelin receptor | An apelin receptor that is encoded in the genome of human. [PRO:WCB, UniProtKB:P35414] | Homo sapiens (human) |
Compound | Definition | Classes | Roles |
---|---|---|---|
my 5445 | MY 5445: potential platelet aggregation inhibitor | pyridazines; ring assembly | |
theophylline | dimethylxanthine | adenosine receptor antagonist; anti-asthmatic drug; anti-inflammatory agent; bronchodilator agent; drug metabolite; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor; fungal metabolite; human blood serum metabolite; immunomodulator; muscle relaxant; vasodilator agent | |
cilostamide | cilostamide: selective inhibitor of cyclic AMP phosphodiesterase & platelet aggregation; structure | quinolines | |
cilostazol | lactam; tetrazoles | anticoagulant; bronchodilator agent; EC 3.1.4.17 (3',5'-cyclic-nucleotide phosphodiesterase) inhibitor; fibrin modulating drug; neuroprotective agent; platelet aggregation inhibitor; vasodilator agent | |
dipyridamole | dipyridamole : A pyrimidopyrimidine that is 2,2',2'',2'''-(pyrimido[5,4-d]pyrimidine-2,6-diyldinitrilo)tetraethanol substituted by piperidin-1-yl groups at positions 4 and 8 respectively. A vasodilator agent, it inhibits the formation of blood clots. Dipyridamole: A phosphodiesterase inhibitor that blocks uptake and metabolism of adenosine by erythrocytes and vascular endothelial cells. Dipyridamole also potentiates the antiaggregating action of prostacyclin. (From AMA Drug Evaluations Annual, 1994, p752) | piperidines; pyrimidopyrimidine; tertiary amino compound; tetrol | adenosine phosphodiesterase inhibitor; EC 3.5.4.4 (adenosine deaminase) inhibitor; platelet aggregation inhibitor; vasodilator agent |
9-(2-hydroxy-3-nonyl)adenine | 9-(2-hydroxy-3-nonyl)adenine: specific inhibitor of adenosine deaminase | ||
etazolate | etazolate : A pyrazolopyridine that is 1H-pyrazolo[3,4-b]pyridine which is substituted at positions 1, 4, and 5 by ethyl, 2-isopropylidenehydrazino, and ethoxycarbonyl groups, respectively. A phosphodiesterase IV inhibitor with antidepressant and anxiolytic properties. Etazolate: A potent phosphodiesterase inhibitor proposed as an antipsychotic agent. | ethyl ester; hydrazone; pyrazolopyridine | alpha-secretase activator; antidepressant; antipsychotic agent; anxiolytic drug; GABA agent; neuroprotective agent; phosphodiesterase IV inhibitor |
fluspirilene | Fluspirilene: A long-acting injectable antipsychotic agent used for chronic schizophrenia. | diarylmethane | |
ibudilast | pyrazolopyridine | ||
amrinone | amrinone : A 3,4'-bipyridine substituted at positions 5 and 6 by an amino group and a keto function respectively. A pyridine phosphodiesterase 3 inhibitor, it is a drug that may improve the prognosis in patients with congestive heart failure. Amrinone: A positive inotropic cardiotonic (CARDIOTONIC AGENTS) with vasodilator properties, phosphodiesterase 3 inhibitory activity, and the ability to stimulate calcium ion influx into the cardiac cell. | bipyridines | EC 3.1.4.* (phosphoric diester hydrolase) inhibitor |
1-methyl-3-isobutylxanthine | 1-Methyl-3-isobutylxanthine: A potent cyclic nucleotide phosphodiesterase inhibitor; due to this action, the compound increases cyclic AMP and cyclic GMP in tissue and thereby activates CYCLIC NUCLEOTIDE-REGULATED PROTEIN KINASES 3-isobutyl-1-methylxanthine : An oxopurine that is xanthine which is substituted at positions 1 and 3 by methyl and isobutyl groups, respectively. | 3-isobutyl-1-methylxanthine | |
loperamide | loperamide : A synthetic piperidine derivative, effective against diarrhoea resulting from gastroenteritis or inflammatory bowel disease. Loperamide: One of the long-acting synthetic ANTIDIARRHEALS; it is not significantly absorbed from the gut, and has no effect on the adrenergic system or central nervous system, but may antagonize histamine and interfere with acetylcholine release locally. | monocarboxylic acid amide; monochlorobenzenes; piperidines; tertiary alcohol | anticoronaviral agent; antidiarrhoeal drug; mu-opioid receptor agonist |
losartan | losartan : A biphenylyltetrazole where a 1,1'-biphenyl group is attached at the 5-position and has an additional trisubstituted imidazol-1-ylmethyl group at the 4'-position Losartan: An antagonist of ANGIOTENSIN TYPE 1 RECEPTOR with antihypertensive activity due to the reduced pressor effect of ANGIOTENSIN II. | biphenylyltetrazole; imidazoles | angiotensin receptor antagonist; anti-arrhythmia drug; antihypertensive agent; endothelin receptor antagonist |
2-(4-morpholinyl)-8-phenyl-4h-1-benzopyran-4-one | 2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-one: specific inhibitor of phosphatidylinositol 3-kinase; structure in first source | chromones; morpholines; organochlorine compound | autophagy inhibitor; EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor; geroprotector |
milrinone | bipyridines; nitrile; pyridone | cardiotonic drug; EC 3.1.4.17 (3',5'-cyclic-nucleotide phosphodiesterase) inhibitor; platelet aggregation inhibitor; vasodilator agent | |
papaverine | papaverine : A benzylisoquinoline alkaloid that is isoquinoline substituted by methoxy groups at positions 6 and 7 and a 3,4-dimethoxybenzyl group at position 1. It has been isolated from Papaver somniferum. Papaverine: An alkaloid found in opium but not closely related to the other opium alkaloids in its structure or pharmacological actions. It is a direct-acting smooth muscle relaxant used in the treatment of impotence and as a vasodilator, especially for cerebral vasodilation. The mechanism of its pharmacological actions is not clear, but it apparently can inhibit phosphodiesterases and it may have direct actions on calcium channels. | benzylisoquinoline alkaloid; dimethoxybenzene; isoquinolines | antispasmodic drug; vasodilator agent |
pentoxifylline | oxopurine | ||
proxyphylline | oxopurine | ||
pyrimethamine | Maloprim: contains above 2 cpds | aminopyrimidine; monochlorobenzenes | antimalarial; antiprotozoal drug; EC 1.5.1.3 (dihydrofolate reductase) inhibitor |
4-(3-butoxy-4-methoxybenzyl)-2-imidazolidinone | 4-(3-Butoxy-4-methoxybenzyl)-2-imidazolidinone: Inhibitor of phosphodiesterases. | methoxybenzenes | |
rolipram | pyrrolidin-2-ones | antidepressant; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor | |
sulmazole | sulmazole : An imidazopyridine that is 1H-imidazo[4,5-b]pyridine which is substituted at position 2 by a 2-methoxy-4-(methylsulfinyl)phenyl group. An A1 adenosine receptor antagonist, it was formerly used as a cardiotonic agent. sulmazole: structure given in first source | imidazopyridine; sulfoxide | adenosine A1 receptor antagonist; cardiotonic drug; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor |
trequinsin | trequinsin: RN given refers to parent cpd; structure given in first source | pyridopyrimidine | |
vesnarinone | organic molecular entity | ||
zardaverine | zardaverine : A pyridazinone derivative in which pyridazin-3(2H)-one is substituted at C-6 with a 4-(difluoromethoxy)-3-methoxyphenyl group. It is a phosphodiesterase inhibitor, selective for PDE3 and 4. zardaverine: structure given in first source | organofluorine compound; pyridazinone | anti-asthmatic drug; bronchodilator agent; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor; peripheral nervous system drug |
2-chloroadenosine | 5-chloroformycin A: structure given in first source | purine nucleoside | |
cycloguanil | cycloguanil : A triazine in which a 1,6-dihydro-1,3,5-triazine ring is substituted at N-1 by a 4-chlorophenyl group, at C-2 and -4 by amino groups and at C-6 by gem-dimethyl groups. A dihydrofolate reductase inhibitor, it is a metabolite of the antimalarial drug proguanil. cycloguanil: the active metabolite of proguanil; antifolate drug; structure in first source | triazines | antifolate; antiinfective agent; antimalarial; antiparasitic agent; antiprotozoal drug; EC 1.5.1.3 (dihydrofolate reductase) inhibitor |
9-benzyladenine | |||
cladribine | organochlorine compound; purine 2'-deoxyribonucleoside | antineoplastic agent; immunosuppressive agent | |
eg 626 | phthalazinol: RN given refers to parent cpd; do not confuse with phthalazinol: 62054-23-3; thromboxane A2 antagonist | phthalazines | |
enoximone | Enoximone: A selective phosphodiesterase inhibitor with vasodilating and positive inotropic activity that does not cause changes in myocardial oxygen consumption. It is used in patients with CONGESTIVE HEART FAILURE. | aromatic ketone | |
atomoxetine | atomoxetine : A secondary amino compound having methyl and 3-(2-methylphenoxy)-3-phenylpropan-1-yl substituents. | aromatic ether; secondary amino compound; toluenes | adrenergic uptake inhibitor; antidepressant; environmental contaminant; xenobiotic |
piroximone | piroximone: structure in first source | ||
2-(2-methoxy-4-(methylsulfinyl)phenyl)-1h-imidazo(4,5-c)pyridine | 2-(2-methoxy-4-(methylsulfinyl)phenyl)-1H-imidazo(4,5-c)pyridine: RN & structure given in first source; RN given refers to parent cpd; closely related to sulmazole | imidazoles | |
imazodan | imazodan: RN & structure given in first source; | ||
nitraquazone | nitraquazone: structure given in first source | ||
bufrolin | bufrolin: inhibits the release of histamine; proposed for treatment of hay fever, asthma and skin allergies; minor descriptor (79-86); on line & INDEX MEDICUS search PHENANTHROLINES (79-86); RN given refers to parent cpd | ||
u 69593 | U 69593: selective ligand for opioid K-receptor U69593 : A monocarboxylic acid amide obtained by formal condensation between the carboxy group of phenylacetic acid and the secodary amino group of (5R,7S,8S)-N-methyl-7-(pyrrolidin-1-yl)-1-oxaspiro[4.5]decan-8-amine. | monocarboxylic acid amide; N-alkylpyrrolidine; organic heterobicyclic compound; oxaspiro compound | anti-inflammatory agent; diuretic; kappa-opioid receptor agonist |
tadalafil | benzodioxoles; pyrazinopyridoindole | EC 3.1.4.35 (3',5'-cyclic-GMP phosphodiesterase) inhibitor; vasodilator agent | |
clofarabine | adenosines; organofluorine compound | antimetabolite; antineoplastic agent | |
dioctanoylphosphatidic acid | dioctanoylphosphatidic acid: structure given in first source | 1,2-diacyl-sn-glycerol 3-phosphate; octanoate ester | |
y 590 | |||
9-(2-hydroxy-3-nonyl)adenine | (2R,3S)-EHNA : EHNA of absolute configuration 2R,3S. Selective inhibitor of cGMP-stimulated phosphodiesterase (PDE2) (IC50 = 0.8 - 4 mM). Also a potent inhibitor of adenosine deaminase. | EHNA | EC 3.1.4.* (phosphoric diester hydrolase) inhibitor; EC 3.5.4.4 (adenosine deaminase) inhibitor |
9-(2-hydroxy-3-nonyl)adenine | (2S,3R)-EHNA : EHNA of absolute configuration 2S,3R. | EHNA | |
cilomilast | methoxybenzenes | ||
rp 73401 | piclamilast : A monocarboxylic acid amide resulting from the formal condensation of the carboxy group of 3-(cyclopentyloxy)-4-methoxybenzoic acid with the primary amino group of 3,5-dichloropyridin-4-amine. piclamilast: an antiasthmatic agent and phosphodiesterase 4 inhibitor; structure in first source | aromatic ether; benzamides; chloropyridine; monocarboxylic acid amide | anti-asthmatic drug; anti-inflammatory agent; bronchodilator agent; phosphodiesterase IV inhibitor |
8-methoxymethyl-3-isobutyl-1-methylxanthine | 8-methoxymethyl-3-isobutyl-1-methylxanthine: inhibitor of phosphodiesterase I | oxopurine | |
vinpocetine | vinpocetine: whole issue of Arzneim Forsch (23 articles) discuss this drug; Arzneim Forsch 26(10a);1976; RN given refers to parent cpd with unspecified isomeric designation | alkaloid | geroprotector |
rolipram | (-)-rolipram : The (R)-enantiomer of rolipram. | rolipram | |
roflumilast | aromatic ether; benzamides; chloropyridine; cyclopropanes; organofluorine compound | anti-asthmatic drug; phosphodiesterase IV inhibitor | |
4,5-dihydro-6-(4-(imidazol-1-yl)phenyl)-5-methyl-3(2h)-pyridazinone | 4,5-dihydro-6-(4-(imidazol-1-yl)phenyl)-5-methyl-3(2H)-pyridazinone: RN & structure given in first source | ||
indolidan | indolidan: structure given in first source | ||
morphine | Meconium: The thick green-to-black mucilaginous material found in the intestines of a full-term fetus. It consists of secretions of the INTESTINAL GLANDS; BILE PIGMENTS; FATTY ACIDS; AMNIOTIC FLUID; and intrauterine debris. It constitutes the first stools passed by a newborn. | morphinane alkaloid; organic heteropentacyclic compound; tertiary amino compound | anaesthetic; drug allergen; environmental contaminant; geroprotector; mu-opioid receptor agonist; opioid analgesic; plant metabolite; vasodilator agent; xenobiotic |
j 113397 | J 113397: an opioid receptor-like 1 (ORL1), orphanin FQ, and nociceptin receptor antagonist; structure in first source | ||
lysophosphatidic acid | 1-oleoyl-sn-glycerol 3-phosphate : A 1-acyl-sn-glycerol 3-phosphate having oleoyl as the 1-O-acyl group. lysophosphatidic acid : A member of the class of lysophosphatidic acids obtained by hydrolytic removal of one of the two acyl groups of any phosphatidic acid. A 'closed' class. lysophosphatidic acid: RN given refers to parent cpd | 1-acyl-sn-glycerol 3-phosphate | |
n-(4-amino-2-methylquinolin-6-yl)-2-(4-ethylphenoxymethyl)benzamide | N-(4-amino-2-methylquinolin-6-yl)-2-(4-ethylphenoxymethyl)benzamide: a nociceptin antagonist; structure in first source | aminoquinoline | |
naltrexone | naltrexone : An organic heteropentacyclic compound that is naloxone substituted in which the allyl group attached to the nitrogen is replaced by a cyclopropylmethyl group. A mu-opioid receptor antagonist, it is used to treat alcohol dependence. Naltrexone: Derivative of noroxymorphone that is the N-cyclopropylmethyl congener of NALOXONE. It is a narcotic antagonist that is effective orally, longer lasting and more potent than naloxone, and has been proposed for the treatment of heroin addiction. The FDA has approved naltrexone for the treatment of alcohol dependence. | cyclopropanes; morphinane-like compound; organic heteropentacyclic compound | antidote to opioid poisoning; central nervous system depressant; environmental contaminant; mu-opioid receptor antagonist; xenobiotic |
bemoradan | bemoradan: RN & structure given in first source | ||
enkephalin, ala(2)-mephe(4)-gly(5)- | peptide | ||
norbinaltorphimine | norbinaltorphimine: kappa opiate receptor antagonist; structure given in first source | isoquinolines | |
dermorphin | dermorphin: opiate-like peptide present in amphibian skin | oligopeptide | |
1,3-dihydro-7,8-dimethyl-2h-imidazo(4,5-b)quinolin-2-one | 1,3-dihydro-7,8-dimethyl-2H-imidazo(4,5-b)quinolin-2-one: structure given in first source | ||
lysophosphatidic acid | |||
naltrindole | naltrindole: delta opioid receptor antagonist | isoquinolines | |
N-(1,3-benzodioxol-5-ylmethyl)-6-chloro-4-quinazolinamine | quinazolines | ||
pmx 53 | |||
4-oxo-6-((pyrimidin-2-ylthio)methyl)-4h-pyran-3-yl 4-nitrobenzoate | 4-oxo-6-((pyrimidin-2-ylthio)methyl)-4H-pyran-3-yl 4-nitrobenzoate: structure in first source | nitrobenzoic acid | |
sch 351591 | SCH 351591: a phosphodiesterase 4 inhibitor; structure in first source SCH-351591 : An aromatic amide resulting from the formal condensation of the carboxy group of 8-methoxy-2-(trifluoromethyl)quinoline-5-carboxylic acid with the primary amino group of 3,5-dichloropyridin-4-amine 1-oxide. It is a potent inhibitor of phosphodiesterase IV (PDE4). | ||
camostat | 4-hydroxyatomoxetine: an atomoxetine metabolite; structure in first source | aromatic ether; phenols | |
ci 1044 | CI 1044: inhibits PDE4; structure in first source | ||
ro 64-6198 | Ro 64-6198: an orphanin FQ/nociceptin receptor agonist; structure in first source | ||
t 1032 | T 1032: a cyclic GMP phosphodiesterase-5 inhibitor; structure in first source | ||
sr 14150 | SR 14150: mixed NOP and mu-opioid receptor ligand and antinociceptive; structure in first source | ||
sb-612111 | |||
diacylglycerol pyrophosphate | 1,2-dioctanoyl-sn-glycerol 3-diphosphate : A 1,2-diacyl-sn-glycerol 3-diphosphate in which both of the phosphatidyl acyl groups are specified as octanoyl. | 1,2-diacyl-sn-glycerol 3-diphosphate; octanoate ester | |
ki16425 | 3-[({4-[4-({[1-(2-chlorophenyl)ethoxy]carbonyl}amino)-3-methyl-1,2-oxazol-5-yl]phenyl}methyl)sulfanyl]propanoic acid : A member of the class of isoxazoles that is the carbamate ester obtained by formal condensation of the carboxy group of 1-(2-chlorophenyl)ethyl hydrogen carbonate with the amino group of 3-({[4-(4-amino-3-methyl-1,2-oxazol-5-yl)phenyl]methyl}sulfanyl)propanoic acid. | carbamate ester; isoxazoles; monocarboxylic acid; monochlorobenzenes; organic sulfide | |
naluzotan | naluzotan: an antidepressant and anti-anxiety agent; structure in first source | ||
losartan potassium | Erythropoietin: Glycoprotein hormone, secreted chiefly by the KIDNEY in the adult and the LIVER in the FETUS, that acts on erythroid stem cells of the BONE MARROW to stimulate proliferation and differentiation. | ||
cebranopadol | |||
(2R,3S)-EHNA hydrochloride | (2R,3S)-EHNA hydrochloride : A hydrochloride salt obtained by reaction of (2R,3S)-EHNA with one equivalent of hydrochloric acid. Selective inhibitor of cGMP-stimulated phosphodiesterase (PDE2) (IC50 = 0.8 - 4 mM). Also a potent inhibitor of adenosine deaminase. | hydrochloride | EC 3.1.4.* (phosphoric diester hydrolase) inhibitor; EC 3.5.4.4 (adenosine deaminase) inhibitor |
a 803467 | A 803467: an Nav1.8 sodium channel blocker; structure in first source | ||
nociceptin | organic molecular entity; polypeptide | human metabolite; rat metabolite | |
pf 04217903 | quinolines | ||
3-(2,5-dimethoxyphenyl)-6-(3,4-dimethoxyphenyl)-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine | triazoles | ||
1-(1-(1-methylcyclooctyl)-4-piperidinyl)-2-((3r)-3-piperidinyl)-1h-benzimidazole | 1-(1-(1-methylcyclooctyl)-4-piperidinyl)-2-((3R)-3-piperidinyl)-1H-benzimidazole: anxiolytic agent; structure in first source | ||
apelin-13 peptide | apelin-13 : A 13 amino acid oligopeptide which is the ligand for the apelin receptor (also known as the APJ receptor). It exhibits hypotensive and neuroprotective effects, and may be a potential prognostic biomarker for acute ischemic stroke and multiple sclerosis. apelin-13 peptide: amino acid sequence in first source | oligopeptide | antihypertensive agent; autophagy inhibitor; biomarker; human metabolite; neuroprotective agent |
p-Glu-Arg-Pro-Arg-Leu-Ser-His-Lys-Gly-Pro-Met-Pro-Phe | p-Glu-Arg-Pro-Arg-Leu-Ser-His-Lys-Gly-Pro-Met-Pro-Phe : A thirteen-membered polypeptide consisting of p-Glu, Arg, Pro, Arg, Leu, Ser, His, Lys, Gly, Pro, Met, Pro and Phe residues joined in sequence. | polypeptide | apoptosis inhibitor; human metabolite; neuroprotective agent |
pf-04418948 | 1-(4-fluorobenzoyl)-3-(((6-methoxy-2-naphthyl)oxy)methyl)azetidine-3-carboxylic acid: structure in first source | ||
vpc32183 | VPC32183: lysophosphatidic acid (LPA) receptor antagonist | ||
nitd 609 | NITD 609: an antimalarial and coccidiostat; structure in first source | ||
an2728 | crisaborole : A member of the class of benzoxaboroles that is 5-hydroxy-1,3-dihydro-2,1-benzoxaborole in which the phenolic hydrogen has been replaced by a 4-cyanophenyl group. A phosphodiesterase 4 inhibitor that is used for treatment of mild to moderate atopic dermatitis in children and adults. crisaborole: NSAID, Dermatologic Agent; structure in first source | aromatic ether; benzoxaborole; nitrile | antipsoriatic; non-steroidal anti-inflammatory drug; phosphodiesterase IV inhibitor |
cc-115 | 1-ethyl-7-(2-methyl-6-(1H-1,2,4-triazol-3-yl)pyridin-3-yl)-3,4-dihydropyrazino(2,3-b)pyrazin-2(1H)-one: an mTOR kinase inhibitor; structure in first source | ||
chf6001 | tanimilast: a phosphodiesterase-4 inhibitor; structure in first source | ||
cyclic gmp | 3',5'-cyclic GMP : A 3',5'-cyclic purine nucleotide in which the purine nucleobase is specified as guanidine. Cyclic GMP: Guanosine cyclic 3',5'-(hydrogen phosphate). A guanine nucleotide containing one phosphate group which is esterified to the sugar moiety in both the 3'- and 5'-positions. It is a cellular regulatory agent and has been described as a second messenger. Its levels increase in response to a variety of hormones, including acetylcholine, insulin, and oxytocin and it has been found to activate specific protein kinases. (From Merck Index, 11th ed) | 3',5'-cyclic purine nucleotide; guanyl ribonucleotide | Escherichia coli metabolite; human metabolite; mouse metabolite; plant metabolite; Saccharomyces cerevisiae metabolite |
sildenafil | sildenafil : A pyrazolo[4,3-d]pyrimidin-7-one having a methyl substituent at the 1-position, a propyl substituent at the 3-position and a 2-ethoxy-5-[(4-methylpiperazin-1-yl)sulfonyl]phenyl group at the 5-position. | piperazines; pyrazolopyrimidine; sulfonamide | EC 3.1.4.35 (3',5'-cyclic-GMP phosphodiesterase) inhibitor; vasodilator agent |
zaprinast | zaprinast: anaphylaxis inhibitor; structure | triazolopyrimidines | |
vardenafil | vardenafil : The sulfonamide resulting from formal condensation of the sulfo group of 4-ethoxy-3-(5-methyl-7-propylimidazo[5,1-f][1,2,4]triazin-4(1H)-one-2-yl)benzenesulfonic acid and the secondary amino group of 4-ethylpiperazine. | imidazotriazine; N-alkylpiperazine; N-sulfonylpiperazine | EC 3.1.4.* (phosphoric diester hydrolase) inhibitor; vasodilator agent |
Imidazosagatriazinone | pyrazolopyrimidine | ||
bl 4162a | anagrelide : A 1,5-dihydroimidazo[2,1-]quinazoline having an oxo substituent at the 2-position and chloro substituents at the 6- and 7-positions. anagrelide: imidazoquinazoline derivative which lowers platelet count probably by inhibiting thrombopoiesis and reduces platelet aggregation; used for thrombocythemia; structure in first source | imidazoquinazoline | anticoagulant; antifibrinolytic drug; cardiovascular drug; platelet aggregation inhibitor |
1,5-dihydro-7-(1-piperidinyl)-imidazo(2,1-b)quinazolin-2(3h)-one | 1,5-dihydro-7-(1-piperidinyl)-imidazo(2,1-b)quinazolin-2(3H)-one: a potent inhibitor of platelet aggregation | ||
quazinone | |||
lixazinone | lixazinone: structure given in first source | ||
6-((3s,4s)-4-methyl-1-(pyrimidin-2-ylmethyl)pyrrolidin-3-yl)-1-(tetrahydro-2h-pyran-4-yl)-1,5-dihydro-4h-pyrazolo(3,4-d)pyrimidin-4-one | |||
bay 60-7550 |