Methyllycaconitine citrate

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Cat.No. 1029 - Methyllycaconitine citrate | C37H50N2O10.C6H8O7 | CAS No. 112825-05-5
Description: α7 neuronal nicotinic receptor antagonist
Alternative Names: MLA
Chemical Name: [1α,4(S),6β,14α,16β]-20-Ethyl-1,6,14,16-tetramethoxy-4-[[[2-(3-methyl-2,5-dioxo-1-pyrrolidinyl)benzoyl]oxy]methyl]aconitane-7,8-diol citrate
Citations (22)

Biological Activity

Potent antagonist for α7-containing neuronal nicotinic receptors (Ki = 1.4 nM). Interacts with α4β2 and α6β2 receptors at concentrations > 40 nM. Attenuates METH-induced neurotoxicity in mouse striatum in vivo.

Compound Libraries

Methyllycaconitine citrate is also offered as part of the Tocriscreen Plus. Find out more about compound libraries available from Tocris.

Technical Data

M. Wt 874.93
Formula C37H50N2O10.C6H8O7
Storage Desiccate at -20°C
CAS Number 112825-05-5
PubChem ID 90479749
Smiles OC(=O)CC(O)(CC(O)=O)C(O)=O.[H][C@@]12C[C@H]3[C@H](OC)[C@]1([H])[C@](O)(C[C@@H]3OC)[C@]1(O)[C@@H](OC)C3[C@@]22[C@H]1N(CC)C[C@]3(COC(=O)C1=CC=CC=C1N1C(=O)C[C@H](C)C1=O)CC[C@@H]2OC

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 Data

Solvent Max Conc. mg/mL Max Conc. mM
DMSO 87.49 100
water 87.49 100

Preparing Stock Solutions

The following data is based on the product molecular weight 874.93. 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 1.14 mL 5.71 mL 11.43 mL
5 mM 0.23 mL 1.14 mL 2.29 mL
10 mM 0.11 mL 0.57 mL 1.14 mL
50 mM 0.02 mL 0.11 mL 0.23 mL

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Product Datasheets

Certificate of Analysis / Product Datasheet
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Safety Datasheet


References are publications that support the products' biological activity.

Dobelis et al (1999) Effects of delphinium alkaloids on neuromuscular transmission. J.Pharmacol.Exp.Ther. 291 538 PMID: 10525069

Escubedo et al (2005) Methyllycaconitine prevents methamphetamine-induced effects in mouse striatum: involvement of α7 nicotinic receptors. J.Pharmacol.Exp.Ther. 315 658 PMID: 16076935

Ward et al (1990) Methyllycaconitine: a selective probe for neuronal a-bungarotoxin binding sites. FEBS Lett. 270 45 PMID: 2226787

If you know of a relevant reference for Methyllycaconitine citrate, please let us know.

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View all Nicotinic (α7) Receptor Antagonists

Keywords: Methyllycaconitine citrate, supplier, α7, alpha7, a7, neuronal, nicotinic, receptors, antagonists, Nicotinic, Acetylcholine, nAChR, MLA, Nicotinic, (a7), Receptors, Nicotinic, (a7), Receptors, Tocris Bioscience

22 Citations for Methyllycaconitine citrate

Citations are publications that use Tocris products. Selected citations for Methyllycaconitine citrate include:

Herman et al (2016) A cholinergic basal forebrain feeding circuit modulates appetite suppression Nature 538 253 PMID: 27698417

Brown and Wonnacott (2015) Sazetidine-A Activates and Desensitizes Native α7 Nicotinic Acetylcholine Receptors. Sci Rep 40 2047 PMID: 24728867

Saunders et al (2015) Corelease of acetylcholine and GABA from cholinergic forebrain neurons. Neurochem Res 4 PMID: 25723967

Tang et al (2015) Modulation of AMPA receptor mediated current by nicotinic acetylcholine receptor in layer I neurons of rat prefrontal cortex. PLoS One 5 14099 PMID: 26370265

Pinnock et al (2015) Nicotine receptors mediating sensorimotor gating and its enhancement by systemic nicotine. Arch Neurol 9 30 PMID: 25717295

Elgueta et al (2015) Acetylcholine induces GABA release onto rod bipolar cells through heteromeric nicotinic receptors expressed in A17 amacrine cells. J Neurosci 9 6 PMID: 25709566

Yamauchi et al (2012) Synthesis of selective agonists for the α7 nicotinic acetylcholine receptor with in situ click-chemistry on acetylcholine-binding protein templates. J Pharmacol Exp Ther 82 687 PMID: 22784805

Northrop et al (2011) Regulation of glutamate release by α7 nicotinic receptors: differential role in methamphetamine-induced damage to dopaminergic and serotonergic terminals. Am J Physiol Renal Physiol 336 900 PMID: 21159748

Assous (2017) Differential processing of thalamic information via distinct striatal interneuron circuits. Nat Commun 8 15860 PMID: 28604688

Zhang et al (2016) Acetylcholinesterase inhibitors for Alzheimer's disease treatment ameliorate acetaminophen-induced liver injury in mice via central cholinergic system regulation the Journal of Pharmacology and Experimental Thera PMID: 27535978

Beckel et al (2006) Expression of functional nicotinic acetylcholine receptors in rat urinary bladder epithelial cells. Front Cell Neurosci 290 F103 PMID: 16144967

Hansen et al (2005) Structures of Aplysia AChBP complexes with nicotinic agonists and antagonists reveal distinctive binding interfaces and conformations. EMBO J 24 3635 PMID: 16193063

Kiss et al (2014) Nicotinic acetylcholine receptors containing the α7-like subunit mediate contractions of muscles responsible for space positioning of the snail, Helix pomatia L. tentacle. PLoS One 9 e109538 PMID: 25303328

Brown et al (2013) Nicotine induces the up-regulation of the α7-nicotinic receptor (α7-nAChR) in human squamous cell lung cancer cells via the Sp1/GATA protein pathway. J Biol Chem 288 33049 PMID: 24089524

Callahan et al (2013) Positive allosteric modulator of α7 nicotinic-acetylcholine receptors, PNU-120596 augments the effects of donepezil on learning and memory in aged rodents and non-human primates. Neuropharmacology 67 201 PMID: 23168113

Némethova et al (2013) Nicotine attenuates activation of tissue resident macrophages in the mouse stomach through the β2 nicotinic acetylcholine receptor. Front Behav Neurosci 8 e79264 PMID: 24223920

Grimster et al (2012) Generation of candidate ligands for nicotinic acetylcholine receptors via in situ click chemistry with a soluble acetylcholine binding protein template. J Am Chem Soc 134 6732 PMID: 22394239

Leão et al (2012) OLM interneurons differentially modulate CA3 and entorhinal inputs to hippocampal CA1 neurons. Nat Neurosci 15 1524 PMID: 23042082

Collins and Millar (2010) Nicotinic acetylcholine receptor transmembrane mutations convert ivermectin from a positive to a negative allosteric modulator. Mol Pharmacol 78 198 PMID: 20463059

Li et al (2010) Cytisine induces autonomic cardiovascular responses via activations of different nicotinic receptors. Auton Neurosci 154 14 PMID: 19887306

Li et al (2009) Specific subtypes of nicotinic cholinergic receptors involved in sympathetic and parasympathetic cardiovascular responses. Neurosci Lett 462 20 PMID: 19573576

Ikonomovic et al (2009) Cortical α7 nicotinic acetylcholine receptor and β-amyloid levels in early Alzheimer disease. Mol Pharmacol 66 646 PMID: 19433665

Do you know of a great paper that uses Methyllycaconitine citrate from Tocris? If so please let us know.

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