Selective antagonist of neuromuscular nicotinic receptors α1β1γδ. Displays selectivity for α/δ sites over α/γ sites in Torpedo.
Sold under license from University of Utah
(Modifications: X = Hyp, Cys-18 = C-terminal amide, Disulfide bridge between 4 - 10, 5 - 17)
|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 2 mg/ml in 10% acetonitrile|
Preparing Stock Solutions
The following data is based on the product molecular weight 2093.4. 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||0.48 mL||2.39 mL||4.78 mL|
|5 mM||0.1 mL||0.48 mL||0.96 mL|
|10 mM||0.05 mL||0.24 mL||0.48 mL|
|50 mM||0.01 mL||0.05 mL||0.1 mL|
The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.
References are publications that support the products' biological activity.
Martinez et al (1995) α-Conotoxin EI, a new nicotinic acetylcholine receptor antagonist with novel selectivity. Biochemistry 34 14519 PMID: 7578057
Park et al (2001) Solution conformation of α-Conotoxin EI, a neuromuscular toxin specific for the α1/δ subunit interface of Torpedo nicotinic acetylcholine receptor. J.Biol.Chem. 276 49028 PMID: 11641403
Lopez-Vera et al (2007) Novel α-conotoxins from Conus spurius and the α-conotoxin EI share high-affinity potentiation and low-affinity inhibition of nicotinic acetylcholine receptors. FEBS Lett. 274 3972 PMID:
If you know of a relevant reference for α-Conotoxin EI, please let us know.
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Keywords: α1β1δγ alpha1beta1deltagamma a1b1dg selective nAChR antagonists Acetylcholine Nicotinic Receptors Non-Selective Subtypes Other α-conotoxin alpha-conotoxin EI a-ConotoxinEI conotoxins venoms Nicotinic Receptors (Other Subtypes)
Citations for α-Conotoxin EI
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Literature in this Area
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.