Muscarinic Toxin 7

Non Antibodies

Proteins

Israel

Storage as Solution: The reconstituted solution can be stored at 4°C for up to 1 week. For longer periods (up to 6 months), small aliquots should be stored at -20°C. We do not recommend storing the product in working solutions for longer than a few days. Avoid multiple freeze-thaw cycles. - Storage before Reconstitution: The product is shipped as a lyophilized powder at room temperature. Upon receipt, store the product at -20°C. Protect from moisture. - Storage after Reconstitution: The reconstituted solution can be stored at 4°C for up to 1 week. For longer periods (up to 6 months), small aliquots should be stored at -20°C. We do not recommend storing the product in working solutions for longer than a few days. Avoid multiple freeze-thaw cycles.

Lyophilized

Muscarinic toxin-7, MT7, muscarinic m1-toxin, m1-toxin1 - An Antagonist of M1 Muscarinic Receptor

An Antagonist of M1 Muscarinic Receptor

12352202

Disulfide bonds between: Cys³-Cys²⁴, Cys¹⁷-Cys⁴², Cys⁴⁶-Cys⁵⁷, Cys⁵⁸-Cys⁶³

Uncompetitive antagonist of M1 AChR1.

no

The action of the neurotransmitter acetylcholine (Ach) is mediated through two types of receptors, the ionotropic nicotinic receptors and the metabotropic muscarinic receptors. The muscarinic receptors belong to the superfamily of G-protein coupled receptors. Five subtypes of muscarinic receptors have been cloned: m1-m51, 2.The muscarinic receptors are widely distributed throughout the body, but are predominantly expressed within the parasympathetic nervous system and exert both excitatory and inhibitory control over central and peripheral tissues1, 2.Muscarinic receptors participate in a number of physiological functions such as regulation of heart rate, muscle contraction, cognition, sensory processing and motor control1. They also participate in learning and memory processing3, 4.Muscarinic Toxin 7 is a 65 amino acid peptide toxin isolated from the Dendroaspis angusticeps (Eastern green mamba)5. It was first found to inhibit M1 muscarinic receptors stably transfected in CHO cells at very low concentrations (1-30 nM)6 and acts as a non-competitive antagonist by binding to an allosteric site6.Muscarinic Toxin 7 binding studies using a M1 and M3 chimera demonstrated that the high affinity of Muscarinic Toxin 7 towards M1 receptor is due to only three residues located in the 2nd and 3rd extracellular loops of the receptor7.