NCBI Taxonomy: 159682

Butein

C15H12O5 (272.0684702)

Butein is a chalcone that is (E)-chalcone bearing four additional hydroxy substituents at positions 2, 3, 4 and 4. It has a role as a tyrosine kinase inhibitor, an antioxidant, an EC 1.1.1.21 (aldehyde reductase) inhibitor, an antineoplastic agent, a geroprotector, a radiosensitizing agent, a hypoglycemic agent and a plant metabolite. It is a member of chalcones and a polyphenol. Butein is a natural product found in Dahlia pinnata, Calanticaria bicolor, and other organisms with data available. Butein is a flavonoid obtained from the seed of Cyclopia subternata. It is a specific protein tyrosine kinase inhibitor that induces apoptosis. (NCI) See also: Semecarpus anacardium juice (part of). A chalcone that is (E)-chalcone bearing four additional hydroxy substituents at positions 2, 3, 4 and 4. C471 - Enzyme Inhibitor > C1404 - Protein Kinase Inhibitor > C1967 - Tyrosine Kinase Inhibitor Butein, also known as 2,3,4,4-tetrahydroxychalcone, is a member of the class of compounds known as 2-hydroxychalcones. 2-hydroxychalcones are organic compounds containing chalcone skeleton that carries a hydroxyl group at the 2-position. Thus, butein is considered to be a flavonoid lipid molecule. Butein is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). Butein is a bitter tasting compound found in broad bean, which makes butein a potential biomarker for the consumption of this food product. Butein is a chalcone of the chalconoids. It can be found in Toxicodendron vernicifluum (or formerly Rhus verniciflua), Dahlia, Butea (Butea monosperma) and Coreopsis It has antioxidative, aldose reductase and advanced glycation endproducts inhibitory effects. It is also a sirtuin-activating compound, a chemical compound having an effect on sirtuins, a group of enzymes that use NAD+ to remove acetyl groups from proteins. It turned out that buteins possess a high ability to inhibit aromatase process in the human body, for this reason, the use of these compounds in the treatment of breast cancer on the estrogen ground has been taken into account. The first attempts of sport pro-hormone supplementation with the use of buteins took place in Poland . Butein is a cAMP-specific PDE inhibitor with an IC50 of 10.4 μM for PDE4[1]. Butein is a specific protein tyrosine kinase inhibitor with IC50s of 16 and 65 μM for EGFR and p60c-src in HepG2 cells[2]. Butein sensitizes HeLa cells to Cisplatin through AKT and ERK/p38 MAPK pathways by targeting FoxO3a[3]. Butein is a SIRT1 activator (STAC). Butein is a cAMP-specific PDE inhibitor with an IC50 of 10.4 μM for PDE4[1]. Butein is a specific protein tyrosine kinase inhibitor with IC50s of 16 and 65 μM for EGFR and p60c-src in HepG2 cells[2]. Butein sensitizes HeLa cells to Cisplatin through AKT and ERK/p38 MAPK pathways by targeting FoxO3a[3]. Butein is a SIRT1 activator (STAC).

Okanin

C15H12O6 (288.06338519999997)

Okanin is a member of the class of chalcones that is trans-chalcone substituted by hydroxy groups at positions 3, 4, 2, 3, and 4 respectively. It has a role as a plant metabolite. It is a member of chalcones and a benzenetriol. It is functionally related to a trans-chalcone. Okanin is a natural product found in Acacia implexa, Acacia concurrens, and other organisms with data available. A member of the class of chalcones that is trans-chalcone substituted by hydroxy groups at positions 3, 4, 2, 3, and 4 respectively. Okanin, effective constituent of the flower tea Coreopsis tinctoria, attenuates LPS-induced microglial activation through inhibition of the TLR4/NF-κB signaling pathways[1]. Okanin, effective constituent of the flower tea Coreopsis tinctoria, attenuates LPS-induced microglial activation through inhibition of the TLR4/NF-κB signaling pathways[1].