mAChR1
mAChR1 (M1 muscarinic acetylcholine receptor) mediates acetylcholine-induced neurotransmission and is widely expressed in the central nervous system[1]. Mechanistically, M1 activates multiple signaling cascades, including Gαq/11-dependent inositol phosphate signaling, while orthosteric and allosteric agonists can produce distinct downstream coupling profiles[2]. In experimental models, M1 knockout ablates muscarinic receptor-dependent M-current regulation and reduces pilocarpine-induced seizure activity, supporting its use in neuronal excitability studies[3]. In Alzheimer’s disease research, M1 activation links cholinergic hypofunction to APP processing, Aβ production, tau phosphorylation, and learning and memory pathways[1]. Compared with related isoforms, M1 and M4 have distinct orthosteric and allosteric binding-site features, but the conserved acetylcholine pocket makes subtype-selective orthosteric ligand design difficult[4]. For experimental applications, M1 positive allosteric modulators such as BQCA and BQZ-12 restored memory loss and slowed disease progression in mouse prion disease models[5].
References:
- [1]. Jiang S, et al. M1 muscarinic acetylcholine receptor in Alzheimer's disease. Neurosci Bull. 2014 Apr;30(2):295-307. [Content Brief]
- [2]. Thomas RL, et al. G protein coupling and signaling pathway activation by m1 muscarinic acetylcholine receptor orthosteric and allosteric agonists. J Pharmacol Exp Ther. 2008 Nov;327(2):365-74. [Content Brief]
- [3]. Hamilton SE, et al. Disruption of the m1 receptor gene ablates muscarinic receptor-dependent M current regulation and seizure activity in mice. Proc Natl Acad Sci U S A. 1997 Nov 25;94(24):13311-6. [Content Brief]
- [4]. Thal DM, et al. Crystal structures of the M1 and M4 muscarinic acetylcholine receptors. Nature. 2016 Mar 17;531(7594):335-40. [Content Brief]
- [5]. Bradley SJ, et al. M1 muscarinic allosteric modulators slow prion neurodegeneration and restore memory loss. J Clin Invest. 2017 Feb 1;127(2):487-499. [Content Brief]
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mAChR1 Related Products (121)
Related Products (121)
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PTAC oxalate
0 ImagesCat. No.: HY-107656CAS No.: 201939-40-4PTAC oxalate is a selective muscarinic receptor ligand. PTAC oxalate is an partial agonist of M2 and M4 but antagonist of M1, M3, and M5 (Ki values of 0.2-2.8 nM for hM1-5 in CHO cells). PTAC oxalate alleviates the mechanical allodynia on the neuropathic pain and has antidepression effects.
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LAS190792
0 ImagesCat. No.: HY-148527CAS No.: 1347232-69-2Synonyms: AZD8999LAS190792 is a bifunctional muscarinic acetylcholine receptor (mAChR) antagonist and β2-adrenergic receptor agonist. LAS190792 has a pIC50 of 8.8 against human M3 muscarinic receptor and a pIC50 of 9.1 against human β2-adrenergic receptor. LAS190792 exhibits vasodilatory and anti-inflammatory activities, and induces sustained bronchodilation in dogs. LAS190792 inhibits the release of IL-8, MMP9, IL-1β and GM-CSF from lipopolysaccharide-stimulated neutrophils. LAS190792 can be used in research related to respiratory system diseases.
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Xanomeline-NH-Boc
0 ImagesCat. No.: HY-186320CAS No.: 1018846-42-8Xanomeline-NH-Boc is a derivative of Xanomeline (HY-105182), which serves as the orthosteric pharmacophore of M1/M4 muscarinic agonist 4 (HY-187957) for activating mAChR1/4.
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DIBA-Cy5
0 ImagesCat. No.: HY-151801DIBA-Cy5 is a fluorescent DIBA antagonist made up be DIBA-alkyne binding Cyanine5 fluorophores (Cy5) and polyethylene glycol (PEG) biomolecules. DIBA-Cy5 can serve as a fluorescent ligand, suitable for probe attachment through click chemistry. DIBA-Cy5 exerts a high binding affinity to type-2 mAChR (M2R) with the Kd value of 1.80 nM, can directly stain M2R receptors in the sinoatrial node of a mouse heart.
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Milameline
0 ImagesCat. No.: HY-135460CAS No.: 139886-32-1Synonyms: CI-979; RU35926Milameline (CI-979; RU35926) is a nonselective, partical and orally active muscarinic receptor agonist that improves cognition. Milameline has equal affinity for different subtypes of human muscarinic receptors with IC50 of 1.3 µM for M1-, 1.1 µM for M2-, 1.5 µM for M3-, and 1.9 µM for M4-muscarinic receptors. Milameline has a higher affinity for sites [3H]CMD (IC50 = 20 nM), than [3H]QNB, (IC50 = 3059 nM). Milameline produces both central and peripheral cholinergic effects and reverses the cognitive deficits induced by Scopolamine (HY-N0296). Milameline can be used for the study of Alzheimer’s Disease.
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VU6077564
0 ImagesCat. No.: HY-187355VU6077564 is a reversible competitive antagonist of M1 mAChR, with an IC50 of 31 nM in human (CHO cells) and 39.5 nM in rats. VU6077564 promotes axon growth of sensory neurons from adult rat dorsal root ganglia cultured in vitro. VU6077564 can be used for the research of peripheral neuropathy.
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Lu 26-046
0 ImagesCat. No.: HY-120329CAS No.: 143756-51-8Lu 26-046 is the agonist for muscarinic M1 receptor and M2 receptor and a weak antagonist for M3 receptor, with Ki of 0.51, 26 and 5 nM, respectively. Lu 26-046 exhibits specific stimulus property, that can be recognized by rats.
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Nebracetam
0 ImagesCat. No.: HY-113970CAS No.: 97205-34-0Synonyms: WEB 1881 FUNebracetam (WEB 1881 FU) is an orally active M1 muscarinic receptor agonist. Nebracetam can induce an increase in intracellular Ca2+ concentration, with an EC50 value of 1.59 mM. Nebracetam exhibits neuroprotective activity and the ability to improve cognitive impairment. Nebracetam can be used in the research of neurological diseases such as Alzheimer's disease.
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5-Hydroxymethyl Tolterodine-d14 formate
0 ImagesCat. No.: HY-76570S15-Hydroxymethyl Tolterodine-d14 (formate) is deuterium labeled (Rac)-5-Hydroxymethyl Tolterodine. (Rac)-5-Hydroxymethyl Tolterodine ((Rac)-Desfesoterodine), an active metabolite of Tolterodine, is a mAChR antagonist (Ki values of 2.3 nM, 2 nM, 2.5 nM, 2.8 nM, and 2.9 nM for M1, M2, M3, M4, and M5 receptors, respectively). (Rac)-5-Hydroxymethyl Tolterodine can be used for overactive bladder research.
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M1 ligand 1
0 ImagesCat. No.: HY-146102CAS No.: 2479356-53-9M1 ligand 1 (compound 3b-b) is a muscarinic acetylcholine receptor M1 ligand. M1 ligand 1 is a N-desmethyl congener of arecoline derivative. M1 ligand 1 can be used as PET (positron emission tomography) radiotracer.
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Bethanechol-d6 chloride
0 ImagesCat. No.: HY-B0406ASSynonyms: Carbamyl-β-methylcholine-d6 chlorideBethanechol-d6 (chloride) is the deuterium labeled Bethanechol chloride. Bethanechol chloride (Carbamyl-β-methylcholine chloride), a parasympathomimetic agent, is a mAChR agonist that exerts its effects via directly stimulating the mAChR (M1, M2, M3, M4, and M5) of the parasympathetic nervous system.
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CN045
0 ImagesCat. No.: HY-187683CAS No.: 401809-27-6CN045 is a blood-brain barrier-permeable, selective M1 muscarinic receptor ligand with an IC50 value of 1 μM. CN045 enhances remyelination in mouse brain regions. CN045 can be used in studies related to multiple sclerosis.
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Isopteropodine (Standard)
0 ImagesIsopteropodine (Standard) is the analytical standard of Isopteropodine (HY-N4157). This product is intended for research and analytical applications. Isopteropodine is a positive modulator that selectively acts on muscarinic M1 and 5-HT2 receptors. Isopteropodine has an EC50 of 9.92 μM for acetylcholine and 14.5 μM for 5-HT. Isopteropodine also has antibacterial activity against Gram-positive bacteria, with MICs of 150 μg/mL and 250 μg/mL for Staphylococcus aureus and Bacillus subtilis, respectively. Isopteropodine enhances receptor function by increasing the affinity of agonists for receptors and can also inhibit the growth of specific Gram-positive bacteria, and can be used in cognitive impairment and antibacterial research.
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L 689660 maleate
0 ImagesCat. No.: HY-120915CAS No.: 144860-79-7L 689660 maleate, a cholinomimetic agent, is a selective M1 and M3 muscarinic receptors agonist. L 689660 maleate is a potent M1 muscarinic receptor full agonist in the rat superior cervical ganglion (pEC50 of 7.3). L 689660 maleate is a potent M3 receptors agonist in the guinea-pig ileum myenteric plexus-longitudinal muscle or in trachea (pEC50 of 7.5 and 7.7, respectively).
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rel-Biperiden EP impurity B-d5
0 ImagesCat. No.: HY-13204S3rel-Biperiden EP impurity B-d5 is deuterium labeled Biperiden (hydrochloride).
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Milameline hydroiodide
0 ImagesCat. No.: HY-107650ASynonyms: CI 979 hydroiodide; RU 35926 hydroiodideMilameline (CI 979; RU35926) hydroiodide is a nonselective, partical and orally active muscarinic receptor agonist that improves cognition. Milameline hydroiodide has equal affinity for different subtypes of human muscarinic receptors with IC50 of 1.3 µM for M1-, 1.1 µM for M2-, 1.5 µM for M3-, and 1.9 µM for M4-muscarinic receptors. Milameline hydroiodide has a higher affinity for sites [3H]CMD (IC50 = 20 nM), than [3H]QNB, (IC50 = 3059 nM). Milameline hydroiodide produces both central and peripheral cholinergic effects and reverses the cognitive deficits induced by Scopolamine (HY-N0296). Milameline hydroiodide can be used for the study of Alzheimer’s Disease.
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Dicyclomine
0 ImagesDicyclomine (Dicycloverine) is a potent and orally active muscarinic cholinergic receptors antagonist. Dicyclomine (Dicycloverine) shows high affinity for muscarinic M1 receptor subtype (Ki=5.1 nM) and M2 receptor subtype (Ki=54.6 nM) in brush-border membrane and basal plasma membranes, respectively. Dicyclomine is an antispasmodic agent and relieves smooth muscle spasm of the gastrointestinal tract in vivo.
