Page last updated: 2024-10-24
1-phosphatidylinositol-3-kinase regulator activity
Definition
Target type: molecularfunction
Modulates the activity of the enzyme 1-phosphatidylinositol-3-kinase activity. [GOC:ai]
1-phosphatidylinositol-3-kinase (PI3K) regulator activity plays a crucial role in modulating the activity of PI3Ks, a family of lipid kinases involved in a myriad of cellular processes. PI3Ks phosphorylate the 3' hydroxyl group of phosphatidylinositol lipids, generating second messenger molecules that activate downstream signaling pathways. PI3K regulators can either activate or inhibit PI3K activity, thereby fine-tuning cellular responses to various stimuli.
Key functions of 1-phosphatidylinositol-3-kinase regulator activity include:
* **Modulating PI3K localization:** Some regulators act by targeting PI3Ks to specific cellular compartments, ensuring that the kinase is active at the right place and time.
* **Altering PI3K conformation:** Others directly interact with PI3Ks, causing conformational changes that either activate or inhibit their enzymatic activity.
* **Influencing PI3K substrate availability:** Regulators can also control the accessibility of PI3K substrates, such as phosphatidylinositol lipids, by affecting their levels or localization.
* **Regulating PI3K protein stability:** Some regulators influence the stability and turnover of PI3K proteins, thereby indirectly modulating their activity.
By controlling PI3K activity, 1-phosphatidylinositol-3-kinase regulator activity impacts a wide range of cellular processes, including:
* **Cell growth and proliferation:** PI3K signaling is essential for cell cycle progression and the survival of many cell types.
* **Cell survival:** PI3Ks are crucial for mediating signals that prevent apoptosis, or programmed cell death.
* **Cell migration and invasion:** PI3K activity is involved in the migration and invasion of cells, contributing to processes like wound healing and cancer metastasis.
* **Immune responses:** PI3Ks play critical roles in the activation and differentiation of immune cells.
* **Metabolic regulation:** PI3K signaling pathways are involved in regulating glucose metabolism, insulin sensitivity, and lipid biosynthesis.
Dysregulation of 1-phosphatidylinositol-3-kinase regulator activity can lead to various diseases, including cancer, diabetes, and immune disorders. Therefore, understanding the molecular function of these regulators is crucial for developing new therapies targeting PI3K signaling pathways.'
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Proteins (4)
| Protein | Definition | Taxonomy |
|---|---|---|
| Phosphatidylinositol 3-kinase regulatory subunit beta | A phosphatidylinositol 3-kinase regulatory subunit beta that is encoded in the genome of human. [PRO:DNx, UniProtKB:O00459] | Homo sapiens (human) |
| Phosphoinositide 3-kinase regulatory subunit 5 | A phosphoinositide 3-kinase regulatory subunit 5 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q8WYR1] | Homo sapiens (human) |
| Phosphatidylinositol 3-kinase regulatory subunit alpha | A phosphatidylinositol 3-kinase regulatory subunit alpha that is encoded in the genome of human. [PRO:DNx] | Homo sapiens (human) |
| Gastrin/cholecystokinin type B receptor | A cholecystokinin receptor 2 that is encoded in the genome of human. [PRO:WCB, UniProtKB:P32239] | Homo sapiens (human) |
Compounds (61)
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| 5-methoxytryptamine | 5-methoxytryptamine : A member of the class of tryptamines that is the methyl ether derivative of serotonin. 5-Methoxytryptamine: Serotonin derivative proposed as potentiator for hypnotics and sedatives. | aromatic ether; primary amino compound; tryptamines | 5-hydroxytryptamine 2A receptor agonist; 5-hydroxytryptamine 2B receptor agonist; 5-hydroxytryptamine 2C receptor agonist; antioxidant; cardioprotective agent; human metabolite; mouse metabolite; neuroprotective agent; radiation protective agent; serotonergic agonist |
| 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 |
| vorinostat | vorinostat : A dicarboxylic acid diamide comprising suberic (octanedioic) acid coupled to aniline and hydroxylamine. A histone deacetylase inhibitor, it is marketed under the name Zolinza for the treatment of cutaneous T cell lymphoma (CTCL). Vorinostat: A hydroxamic acid and anilide derivative that acts as a HISTONE DEACETYLASE inhibitor. It is used in the treatment of CUTANEOUS T-CELL LYMPHOMA and SEZARY SYNDROME. | dicarboxylic acid diamide; hydroxamic acid | antineoplastic agent; apoptosis inducer; EC 3.5.1.98 (histone deacetylase) inhibitor |
| whi p180 | |||
| indopan | alpha-methyltryptamine : A tryptamine derivative having a methyl substituent at the alpha-position. indopan: RN given refers to parent cpd without isomeric designation | tryptamines | |
| 5-methoxy-alpha-methyltryptamine | 5-methoxy-alpha-methyltryptamine: RN given refers to parent cpd without isomeric designation | tryptamines | |
| spiroglumide | spiroglumide: a CCK receptor antagonist; antigastrin; structure given in first source | ||
| Pyrrolidine-1-carbonitrile | pyrrolidines | ||
| enkephalin, d-penicillamine (2,5)- | DPDPE : A heterodetic cyclic peptide that is a cyclic enkephalin analogue, having D-penicillaminyl residues located at positions 2 and 5, which form the heterocycle via a disulfide bond. Enkephalin, D-Penicillamine (2,5)-: A disulfide opioid pentapeptide that selectively binds to the DELTA OPIOID RECEPTOR. It possesses antinociceptive activity. | heterodetic cyclic peptide | delta-opioid receptor agonist |
| ci 988 | PD 134308: selective cholecystokinin type B receptor antagonist; inhibits growth of LoVo, a human colon cancer cell line; structure given in first source | ||
| l 740093 | L 740093: a CCK-B receptor antagonist; structure in first source | ||
| cholecystokinin 9 | cholecystokinin 9: nonapeptide | ||
| wortmannin | acetate ester; cyclic ketone; delta-lactone; organic heteropentacyclic compound | anticoronaviral agent; antineoplastic agent; autophagy inhibitor; EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor; geroprotector; Penicillium metabolite; radiosensitizing agent | |
| devazepide | devazepide : An indolecarboxamide obtained by formal condensation of the carboxy group of indole-2-carboxylic acid with the exocyclic amino group of (3S)-3-amino-1-methyl-5-phenyl-1,3-dihydro-1,4-benzodiazepin-2-one. A cholecystokinin antagonist used for treatment of gastrointestinal disorders. Devazepide: A derivative of benzodiazepine that acts on the cholecystokinin A (CCKA) receptor to antagonize CCK-8's (SINCALIDE) physiological and behavioral effects, such as pancreatic stimulation and inhibition of feeding. | 1,4-benzodiazepinone; indolecarboxamide | antineoplastic agent; apoptosis inducer; cholecystokinin antagonist; gastrointestinal drug |
| tetragastrin | tetragastrin : A tetrapeptide composed of L-tryptophan, L-methione, L-aspartic acid and L-phenylalaninamide residues joined in sequence. Tetragastrin: L-Tryptophyl-L-methionyl-L-aspartyl-L-phenylalaninamide. The C-terminal tetrapeptide of gastrin. It is the smallest peptide fragment of gastrin which has the same physiological and pharmacological activity as gastrin. | peptidyl amide; tetrapeptide | anxiogenic; human metabolite |
| cholecystokinin (26-33) | cholecystokinin (26-33): cholecystokinin receptor antagonists | ||
| cholecystokinin (27-33), tert-butyloxycarbonyl-nle(28,31)- | cholecystokinin (27-33), tert-butyloxycarbonyl-Nle(28,31)-: cholecystokinin agonist | ||
| 2-(2-(5-bromo-1h-indol-3-yl)ethyl)-3-(1-methylethoxyphenyl)-4-(3h)-quinazolinone | 2-(2-(5-bromo-1H-indol-3-yl)ethyl)-3-(1-methylethoxyphenyl)-4-(3H)-quinazolinone: CCK2 receptor antagonist | quinazolines | |
| quercetin | 7-hydroxyflavonol; pentahydroxyflavone | antibacterial agent; antineoplastic agent; antioxidant; Aurora kinase inhibitor; chelator; EC 1.10.99.2 [ribosyldihydronicotinamide dehydrogenase (quinone)] inhibitor; geroprotector; phytoestrogen; plant metabolite; protein kinase inhibitor; radical scavenger | |
| l 365260 | L 365260: a CCK-B antagonist; structure given in first source; potent & selective CCK-B & gastrin receptor ligand; L 365260 and L 365346 are (R)- and (S)-stereoisomers, respectively | benzodiazepine | |
| enkephalin, ala(2)-mephe(4)-gly(5)- | peptide | ||
| panobinostat | panobinostat : A hydroxamic acid obtained by formal condensation of the carboxy group of (2E)-3-[4-({[2-(2-methylindol-3-yl)ethyl]amino}methyl)phenyl]prop-2-enoic acid with the amino group of hydroxylamine. A histone deacetylase inhibitor used (as its lactate salt) in combination with bortezomib and dexamethasone for the treatment of multiple myeloma. Panobinostat: An indole and hydroxamic acid derivative that acts as a HISTONE DEACETYLASE inhibitor. It is used as an antineoplastic agent in combination with BORTEZOMIB and DEXAMETHASONE for the treatment of MULTIPLE MYELOMA. | cinnamamides; hydroxamic acid; methylindole; secondary amino compound | angiogenesis modulating agent; antineoplastic agent; EC 3.5.1.98 (histone deacetylase) inhibitor |
| sincalide | Sincalide: An octapeptide hormone present in the intestine and brain. When secreted from the gastric mucosa, it stimulates the release of bile from the gallbladder and digestive enzymes from the pancreas. | oligopeptide | |
| pentagastrin | Pentagastrin: A synthetic pentapeptide that has effects like gastrin when given parenterally. It stimulates the secretion of gastric acid, pepsin, and intrinsic factor, and has been used as a diagnostic aid. | organic molecular entity | |
| nu 7026 | 2-(morpholin-4-yl)benzo(h)chromen-4-one: a radiosensitizing agent that inhibits DNA-dependent protein kinase; structure in first source | organic heterotricyclic compound; organooxygen compound | |
| yf 476 | YF 476: gastrin and CCK-B receptor antagonist; structure in first source | ||
| pi103 | PI103: pyridofuropyrimidine antineoplastic; a potent inhibitor of class I phosphatidylinositide 3-kinases (PI3K); structure in first soruce | aromatic amine; morpholines; organic heterotricyclic compound; phenols; tertiary amino compound | antineoplastic agent; EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor; mTOR inhibitor |
| l 365260 | |||
| mart-1 antigen | MART-1 Antigen: A melanosome-specific protein that plays a role in the expression, stability, trafficking, and processing of GP100 MELANOMA ANTIGEN, which is critical to the formation of Stage II MELANOSOMES. The protein is used as an antigen marker for MELANOMA cells. | ||
| PI3-Kinase alpha Inhibitor 2 | organic heterobicyclic compound; organonitrogen heterocyclic compound; organosulfur heterocyclic compound | ||
| tgx 221 | TGX 221: a platelet aggregation inhibitor | pyridopyrimidine | |
| ic 87114 | IC 87114: structure in first source | 6-aminopurines; biaryl; quinazolines | EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor |
| 4-n-butyl-1-(4-(2-methylphenyl)-4-oxo-1-butyl)-piperidine hydrogen chloride | |||
| tg100-115 | 3,3'-(2,4-diaminopteridine-6,7-diyl)diphenol: for treatment of ischemia reperfusion injury; structure in first source | pteridines | |
| naluzotan | naluzotan: an antidepressant and anti-anxiety agent; structure in first source | ||
| idelalisib | idelalisib : A member of the class of quinazolines that is 5-fluoro-3-phenylquinazolin-4-one in which the hydrogen at position 2 is replaced by a (1S)-1-(3H-purin-6-ylamino)propyl group. used for for the treatment of refractory indolent non-Hodgkin's lymphoma and relapsed chronic lymphocytic leukemia. idelalisib: an antineoplastic agent and p110delta inhibitor; structure in first source | aromatic amine; organofluorine compound; purines; quinazolines; secondary amino compound | antineoplastic agent; apoptosis inducer; EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor |
| zstk474 | ZSTK-474 : A triamino-1,3,5-triazine that is 1,3,5-triazine in which two of the hydrogens have been replaced by morpholin-4-yl groups while the third hydrogen has been replaced by a 2-(difluoromethyl)benzimidazol-1-yl group. It is an inhibitor of phosphatidylinositol 3-kinase. | benzimidazoles; morpholines; organofluorine compound; triamino-1,3,5-triazine | antineoplastic agent; EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor |
| dactolisib | dactolisib : An imidazoquinoline that is 3-methyl-2-oxo-2,3-dihydro-1H-imidazo[4,5-c]quinoline substituted at position 1 by a 4-(1-cyanoisopropyl)phenyl group and at position 8 by a quinolin-3-yl group. A dual PI3K/mTOR inhibitor used in cancer treatment. dactolisib: antineoplastic agent that inhibits both phosphatidylinositol 3-kinase and mTOR | imidazoquinoline; nitrile; quinolines; ring assembly; ureas | antineoplastic agent; EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor; mTOR inhibitor |
| butyloxycarbonyl-tryptophyl-methionyl-aspartyl-phenylalaninamide | |||
| gastrin 17 | gastrin-17 : One of the primary forms of gastrin that is a 17-membered peptide consisting of Glp, Gly, Pro, Trp, Leu, Glu, Glu, Glu, Glu, Glu, Ala, Tyr, Gly, Trp, Met, Asp and Phe-NH2 residues joined in sequence. | gastrin | antineoplastic agent |
| buparlisib | NVP-BKM120: a pan class I PI3 kinase inhibitor with antineoplastic activity; structure in first source | aminopyridine; aminopyrimidine; morpholines; organofluorine compound | antineoplastic agent; EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor |
| gdc 0941 | pictrelisib : A sulfonamide composed of indazole, morpholine, and methylsulfonyl-substituted piperazine rings bound to a thienopyrimidine ring. | indazoles; morpholines; piperazines; sulfonamide; thienopyrimidine | EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor |
| gsk 2126458 | omipalisib : A member of the class of quinolines that is quinoline which is substituted by pyridazin-4-yl and 5-[(2,4-difluorobenzene-1-sulfonyl)amino]-6-methoxypyridin-3-yl groups at positions 4 and 6, respectively. It is a highly potent inhibitor of PI3K and mTOR developed by GlaxoSmithKline and was previously in human phase 1 clinical trials for the treatment of idiopathic pulmonary fibrosis and solid tumors. omipalisib: inhibitor of mTOR protein | aromatic ether; difluorobenzene; pyridazines; pyridines; quinolines; sulfonamide | anticoronaviral agent; antineoplastic agent; autophagy inducer; EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor; mTOR inhibitor; radiosensitizing agent |
| azd2014 | vistusertib: potent and selective dual mTORC1 and mTORC2 inhibitor; structure in first source | ||
| (5-(2,4-bis((3s)-3-methylmorpholin-4-yl)pyrido(2,3-d)pyrimidin-7-yl)-2-methoxyphenyl)methanol | (5-(2,4-bis((3S)-3-methylmorpholin-4-yl)pyrido(2,3-d)pyrimidin-7-yl)-2-methoxyphenyl)methanol: a potent, selective, and orally bioavailable ATP-competitive mammalian target of rapamycin kinase inhibitor with in vitro and in vivo antitumor activity; structure in first source | benzyl alcohols; morpholines; pyridopyrimidine; tertiary amino compound | antineoplastic agent; apoptosis inducer; mTOR inhibitor |
| 4-[6-[4-(methoxycarbonylamino)phenyl]-4-(4-morpholinyl)-1-pyrazolo[3,4-d]pyrimidinyl]-1-piperidinecarboxylic acid methyl ester | WYE-354: an mTOR inhibitor; structure in first source | carbamate ester | |
| nitd 609 | NITD 609: an antimalarial and coccidiostat; structure in first source | ||
| vs-5584 | VS-5584: a highly selective PI3K/mTOR kinase inhibitor for the treatment of cancer | ||
| etp-46321 | ETP-46321: inhibits PI3K alpha and PI3K delta; structure in first source | ||
| gsk2292767 | GSK2292767: inhibits phosphoinositide 3-kinase delta; structure in first source | ||
| torin 1 | torin 1 : A member of the class of pyridoquinolines that is 9-(quinolin-3-yl)benzo[h][1,6]naphthyridin-2-one bearing an additional 4-(4-propionylpiperazin-1-yl)-3-(trifluoromethyl)phenyl substituent at position 1. It is a potent inhibitor of mTOR and exhibits anti-cancer properties. | N-acylpiperazine; N-arylpiperazine; organofluorine compound; pyridoquinoline; quinolines | antineoplastic agent; mTOR inhibitor |
| ipi-145 | isoquinolines | ||
| pf-4989216 | PF-4989216: inhibits phosphatidylinositol 3-kinase; structure in first source | ||
| torin 2 | torin 2 : A member of the class of pyridoquinolines that is benzo[h][1,6]naphthyridin-2-one carrying additional 3-(trifluoromethyl)phenyl and 6-aminopyridin-3-yl substituents at positions 1 and 9 respectively. It is a potent inhibitor of mTOR and exhibits anti-cancer properties. | aminopyridine; organofluorine compound; primary amino compound; pyridoquinoline | antineoplastic agent; mTOR inhibitor |
| azd8186 | |||
| hs-173 | |||
| cudc-907 | |||
| byl719 | proline derivative | ||
| amg 511 | AMG 511: structure in first source | ||
| vx-970 | berzosertib: an ATR kinase inhibitor | sulfonamide | |
| bay 80-6946 | copanlisib : An imidazoquinazoline that is 2,3-dihydroimidazo[1,2-c]quinazoline substituted by (2-aminopyrimidine-5-carbonyl)amino, methoxy, and 3-(morpholin-4-yl)propoxy groups at positions 5, 7 and 8, respectively. It is a intravenous pan-class I PI3K inhibitor used for the treatment of relapsed follicular lymphoma in patients who have received at least 2 prior systemic therapies. copanlisib: an antineoplastic agent with PI3K inhibitory activity; structure in first source |