Biological descriptionEndogenous selective mGlu4 agonist; generated by autoxidation of the tryptophan metabolite 3-hydroxyanthranilic acid. Activates mGlu4 receptors in transiently transfected HEK293 cells, and is devoid of activity on other mGlu receptor subtypes (mGlu1, 2, 5, 6, 7, and 8). Protects against NMDA-induced excitotoxic cell death.
Chemical name2-Amino-3-oxo-3H-phenoxazine-1,9-dicarboxylic acid
Storage instructionsStore at -20°C. Store under desiccating conditions. The product can be stored for up to 12 months.
Solubility overviewSoluble in DMSO to 25 mM (requires warming)
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
Fazio F et al. Cinnabarinic acid, an endogenous metabolite of the kynurenine pathway, activates type 4 metabotropic glutamate receptors. Mol Pharmacol81:643-56 (2012).
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Hiramatsu R et al. Cinnabarinic acid generated from 3-hydroxyanthranilic acid strongly induces apoptosis in thymocytes through the generation of reactive oxygen species and the induction of caspase. J Cell Biochem103:42-53 (2008).
Read more (PubMed: 17476692) »
Manthey MK et al. Mechanism of reaction of 3-hydroxyanthranilic acid with molecular oxygen. Biochim Biophys Acta1034:207-12 (1990).
Read more (PubMed: 2162210) »