NR2B-selective, competitive antagonist of the NMDA receptor. Blocks NMDA-evoked current in mouse cortical neurons (IC50 = 480 nM); also inhibits NMDA-evoked responses in oocytes expressing N2RB, but not NR2A, subunits (IC50 ~300 nM). Exhibits neuroprotective properties in vivo and in vitro.
(Modifications: X = Gla, Asn-17 = C-terminal amide)
|Storage||Store at -20°C|
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.
|Solubility||Soluble to 1 mg/ml in water|
Preparing Stock Solutions
The following data is based on the product molecular weight 2264.21. 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||0.44 mL||2.21 mL||4.42 mL|
|5 mM||0.09 mL||0.44 mL||0.88 mL|
|10 mM||0.04 mL||0.22 mL||0.44 mL|
|50 mM||0.01 mL||0.04 mL||0.09 mL|
References are publications that support the biological activity of the product.
Donevan and McCabe (2000) Conantokin G is an NR2B-selective competitive antagonist of N-methyl-D-aspartate receptors. Mol.Pharmacol. 58 614 PMID: 10953056
Bush et al (2000) Selective antagonism of nigral neuropeptide responses to methamphetamine by conantokin G, a naturally occurring conopeptide. Eur.J.Pharmacol. 387 55 PMID: 10633160
Williams et al (2000) Neuroprotective efficacy and therapeutic window of the high-affinity N-methyl-D-aspartate antagonist conantokin-G: in vitro (primary cerebellar neurons) and in vivo (rat model of transient focal brain ischemia) studies. J.Pharmacol.Exp.Ther. 294 378 PMID: 10871336
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Keywords: Conantokin G, Conantokin G supplier, neuroprotective, NMDA, receptors, antagonists, NR2B, selective, venoms, Receptors, 4136, Tocris Bioscience
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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!
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Alzheimer's disease (AD) is a degenerative brain disease and the most common cause of dementia, affecting approximately 47 million people worldwide. Updated in 2015, this poster summarizes the structural and functional changes observed in the progression of this neurodegenerative disease, as well as classic AD drug targets.
Major depressive disorder is characterized by depressed mood and a loss of interest and/or pleasure. Updated in 2015 this poster highlights presynaptic and postsynaptic targets for the potential treatment of major depressive disorder, as well as outlining the pharmacology of currently approved antidepressant drugs.
Huntington's Disease Poster
Huntington's disease (HD) is a monogenic neurodegenerative disorder, which is characterized by the prevalent loss of GABAergic medium spiny neurons (MSN) in the striatum. This poster summarizes the MSN intracellular signaling pathways implicated in the pathology of HD, as well as highlighting the use of iPSCs for HD modeling.
Learning & Memory Poster
Recognition memory enables us to make judgements about whether or not we have encountered a particular stimulus before. This poster outlines the cellular mechanisms underlying recognition memory and its links to long-term depression, as well as the use of pharmacological intervention to assess the role of neurotransmitters in recognition memory.
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.
Parkinson's disease (PD) causes chronic disability and is the second most common neurodegenerative condition. This poster outlines the neurobiology of the disease, as well as highlighting current therapeutic treatments for symptomatic PD, and emerging therapeutic strategies to delay PD onset and progression.
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.