Positive allosteric modulator of GABAA receptors. Enhances GABA-induced Cl- currents in the α1β2γ2, α3β2γ2 and α6β2γ2 subtypes. Causes sedation in vivo following i.v. administration without losing "righting reflex". Also displays antioxidant activity.
|Storage||Desiccate at RT|
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
All Tocris products are intended for laboratory research use only.
|Solvent||Max Conc. mg/mL||Max Conc. mM|
Preparing Stock Solutions
The following data is based on the product molecular weight 321.85. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.
|Concentration / Solvent Volume / Mass||1 mg||5 mg||10 mg|
|1 mM||3.11 mL||15.54 mL||31.07 mL|
|5 mM||0.62 mL||3.11 mL||6.21 mL|
|10 mM||0.31 mL||1.55 mL||3.11 mL|
|50 mM||0.06 mL||0.31 mL||0.62 mL|
References are publications that support the products' biological activity.
Bundy et al (1995) Synthesis of novel 2,4-diaminopyrrolo-[2,3-d]pyrimidines with antioxidant, neuroprotective, and antiasthma activity. J.Med.Chem. 38 4161 PMID: 7473542
Haesook et al (1995) U-89843A is a novel allosteric modulator of γ-aminobutyric acidA receptors. J.Pharmacol.Exp.Ther. 275 1390 PMID: 8531107
Rohn et al (1996) Inhibition of Ca2+-pump ATPase and the Na+/K+-pump ATPase by iron-generated free radicals. Biochem.Pharmacol. 51 471 PMID: 8619892
If you know of a relevant reference for U 89843A, please let us know.
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Literature in this Area
Tocris offers the following scientific literature in this area to showcase our products. We invite you to request* or download your copy today!
*Please note that Tocris will only send literature to established scientific business / institute addresses.
GABA Receptors Scientific Review
Written by Ian Martin, Norman Bowery and Susan Dunn, this review provides a history of the GABA receptor, as well as discussing the structure and function of the various subtypes and the clinical potential of receptor modulators; compounds available from Tocris are listed.
The key feature of drug addiction is the inability to stop using a drug despite clear evidence of harm. This poster describes the brain circuits associated with addiction, and provides an overview of the main classes of addictive drugs and the neurotransmitter systems that they target.
Peripheral sensitization is the reduction in the threshold of excitability of sensory neurons that results in an augmented response to a given external stimulus. This poster outlines the excitatory and inhibitory signaling pathways involved in modulation of peripheral sensitization. The role of ion channels, GPCRs, neurotrophins, and cytokines in sensory neurons are also described.
Schizophrenia is a debilitating psychiatric disorder that affects 1% of the worldwide population. This poster describes the neurobiology of Schizophrenia, as well as highlighting the genetic and environmental factors that play a fundamental role in the etiology of the disease. The current and emerging drug targets are also discussed.