Target type: molecularfunction
Combining with ATP and transmitting the signal across the membrane by activating an associated G-protein; promotes the exchange of GDP for GTP on the alpha subunit of a heterotrimeric G-protein complex. [GOC:mah]
G protein-coupled ATP receptors (P2Y receptors) are a family of transmembrane receptors that respond to extracellular ATP. These receptors play critical roles in diverse physiological processes, including neurotransmission, inflammation, platelet aggregation, and cell proliferation. Upon binding to ATP, these receptors undergo conformational changes, leading to the activation of heterotrimeric G proteins, which then initiate intracellular signaling cascades. This signaling cascade involves the activation of phospholipase C (PLC), which hydrolyzes phosphatidylinositol 4,5-bisphosphate (PIP2) into diacylglycerol (DAG) and inositol trisphosphate (IP3). DAG activates protein kinase C (PKC), while IP3 triggers the release of calcium from intracellular stores. These downstream signaling events ultimately lead to diverse cellular responses, such as changes in ion channel permeability, cytoskeletal reorganization, gene expression, and cell growth. G protein-coupled ATP receptors are highly selective for ATP, exhibiting high affinity for this nucleotide. Their ability to transduce extracellular ATP signals into intracellular responses makes them crucial players in various biological processes, highlighting their significance in maintaining cellular homeostasis and mediating physiological functions.'
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| Protein | Definition | Taxonomy |
|---|---|---|
| P2Y purinoceptor 11 | A P2Y purinoceptor 11 that is encoded in the genome of human. [PRO:WCB, UniProtKB:Q96G91] | Homo sapiens (human) |
| P2Y purinoceptor 1 | A P2Y purinoceptor 1 that is encoded in the genome of human. [PRO:WCB, UniProtKB:P47900] | Homo sapiens (human) |
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| pyridoxal phosphate-6-azophenyl-2',4'-disulfonic acid | 5'-phosphopyridoxal-6-azobenzene-2,4-disulfonic acid : An arenesulfonic acid that is pyridoxal 5'-phosphate carrying an additional 2,4-disulfophenylazo substituent at position 6. pyridoxal phosphate-6-azophenyl-2',4'-disulfonic acid: a novel antagonist that selectively blocks P2 purinoceptor receptors; a useful tool to study co-transmission in tissues when ATP and coexisting neurotransmitters act in concert | arenesulfonic acid; azobenzenes; methylpyridines; monohydroxypyridine; organic phosphate; pyridinecarbaldehyde | purinergic receptor P2X antagonist |
| suramin | suramin : A member of the class of phenylureas that is urea in which each of the amino groups has been substituted by a 3-({2-methyl-5-[(4,6,8-trisulfo-1-naphthyl)carbamoyl]phenyl}carbamoyl)phenyl group. An activator of both the rabbit skeletal muscle RyR1 and sheep cardiac RyR2 isoform ryanodine receptor channels, it has been used for the treatment of human African trypanosomiasis for over 100 years. Suramin: A polyanionic compound with an unknown mechanism of action. It is used parenterally in the treatment of African trypanosomiasis and it has been used clinically with diethylcarbamazine to kill the adult Onchocerca. (From AMA Drug Evaluations Annual, 1992, p1643) It has also been shown to have potent antineoplastic properties. | naphthalenesulfonic acid; phenylureas; secondary carboxamide | angiogenesis inhibitor; antinematodal drug; antineoplastic agent; apoptosis inhibitor; EC 2.7.11.13 (protein kinase C) inhibitor; GABA antagonist; GABA-gated chloride channel antagonist; purinergic receptor P2 antagonist; ryanodine receptor agonist; trypanocidal drug |
| adenosine diphosphate | Adenosine Diphosphate: Adenosine 5'-(trihydrogen diphosphate). An adenine nucleotide containing two phosphate groups esterified to the sugar moiety at the 5'-position. | adenosine 5'-phosphate; purine ribonucleoside 5'-diphosphate | fundamental metabolite; human metabolite |
| uridine diphosphate | Uridine Diphosphate: A uracil nucleotide containing a pyrophosphate group esterified to C5 of the sugar moiety. | pyrimidine ribonucleoside 5'-diphosphate; uridine 5'-phosphate | Escherichia coli metabolite; mouse metabolite |
| adenosine monophosphate | Adenosine Monophosphate: Adenine nucleotide containing one phosphate group esterified to the sugar moiety in the 2'-, 3'-, or 5'-position. | adenosine 5'-phosphate; purine ribonucleoside 5'-monophosphate | adenosine A1 receptor agonist; cofactor; EC 3.1.3.1 (alkaline phosphatase) inhibitor; EC 3.1.3.11 (fructose-bisphosphatase) inhibitor; fundamental metabolite; micronutrient; nutraceutical |
| uridine triphosphate | Uridine Triphosphate: Uridine 5'-(tetrahydrogen triphosphate). A uracil nucleotide containing three phosphate groups esterified to the sugar moiety. | pyrimidine ribonucleoside 5'-triphosphate; uridine 5'-phosphate | Escherichia coli metabolite; mouse metabolite |
| 2'-deoxyadenosine triphosphate | 2'-deoxyadenosine triphosphate: RN given refers to unlabeled parent cpd | 2'-deoxyadenosine 5'-phosphate; purine 2'-deoxyribonucleoside 5'-triphosphate | Escherichia coli metabolite; mouse metabolite |
| methylthio-adp | |||
| diquafosol | diquafosol: purinoceptor P2Y(2) receptor agonist P(1),P(4)-bis(uridin-5'-yl) tetraphosphate : A pyrimidine ribonucleoside 5'-tetraphosphate compound having 5'-uridinyl residues at the P(1)- and P(4)-positions. | pyrimidine ribonucleoside 5'-tetraphosphate; uridine 5'-phosphate | mouse metabolite; P2Y2 receptor agonist |
| 2-chloro-atp | 2-chloro-ATP: new ATP analog; relaxes mammalian gut preparations; structure | ||
| adenosine 5'-o-(1-thiodiphosphate) | adenosine 5'-O-(1-thiodiphosphate): do not confuse with ADP beta S | ||
| nitro-bis(2,4-pentanedionato)(pyridine)cobalt(iii) | nitro-bis(2,4-pentanedionato)(pyridine)cobalt(III): structure given in first source P(1),P(5)-bis(5'-adenosyl) pentaphosphate : A diadenosyl pentaphosphate having the two 5'-adenosyl residues attached at the P(1)- and P(5)-positions. | diadenosyl pentaphosphate | Escherichia coli metabolite; vasoconstrictor agent |
| adenosine 5'-o-(3-thiotriphosphate) | adenosine 5'-[gamma-thio]triphosphate : A nucleoside triphosphate analogue that is ATP in which one of the oxygens attached to 3-phosphate group is replaced by sulfur. adenosine 5'-O-(3-thiotriphosphate): RN given refers to cpd with unspecified locant for thio group; see also records for 1-thio & 2-thio-isomers | nucleoside triphosphate analogue | |
| salvianolic acid a | salvianolic acid A: a nootropic depside from Salvia miltiorrhizia | stilbenoid | |
| ar c67085mx | PSB-0413: a selective antagonist radioligand for platelet P2Y12 receptors | ||
| 2-methylthio-atp | 2-methylthio-ATP: purinergic receptors agonist; relaxes mammalian gut preparations; structure given in first source | ||
| adp beta s | adenosine 5'-O-(2-thiodiphosphate): partial agonist toward platelet aggregation; see also record for 1-thiodiphosphate cpd | ||
| acid blue 25 | |||
| acid blue 129 | |||
| mrs2500 |