1. Signaling Pathways
  2. Neuronal Signaling
  3. Cholinesterase (ChE)

Cholinesterase (ChE)

Cholinesterase (ChE) is a family of enzymes present in the central nervous system, particularly in nervous tissue, muscle and red cells, which catalyze the hydrolysis of the neurotransmitter acetylcholine into choline and acetic acid, a reaction necessary to allow a cholinergic neuron to return to its resting state after activation. It is one of many important enzymes needed for the proper functioning of the nervous systems of humans.

There are two types: acetylcholinesterase (AChE, acetylcholine hydrolase) and butyrylcholinesterase (BChE, acylcholine acylhydrolase), also known as nonspecific cholinesterase or pseudocholinesterase. AChE is primarily found in the blood on red blood cell membranes, in neuromuscular junctions, and in neural synapses, while BChE is produced in the liver and found primarily in plasma. The difference between the two types of cholinesterase is their relative preferences for substrates: AChE hydrolyzes acetylcholine faster while BChE hydrolyzes butyrylcholine faster.

Cholinesterase (ChE) Isoform Specific Products:

Cat. No. Product Name Effect Purity
  • HY-B0034
    Donepezil Hydrochloride
    Inhibitor 99.94%
    Donepezil Hydrochloride (E2020) is a reversible, selective AChE inhibitor with an IC50 of 6.7 nM for AChE activity. Donepezil shows high selectivity for AChE over BuChE. Donepezil exhibits neuroprotective effect on Aβ42 neurotoxicity.
  • HY-138097
    Inhibitor ≥98.0%
    α-NETA is a potent and noncompetitive choline acetyltransferase (ChA) inhibitor with an IC50 of 9 μM. α-NETA is a potent ALDH1A1 (IC50=0.04 µM) and chemokine-like receptor-1 (CMKLR1) antagonist. α-NETA weakly inhibits cholinesterase (ChE; IC50=84 µM) and acetylcholinesterase (AChE; IC50=300 µM). α-NETA has anti-cancer activity.
  • HY-108477
    TMPyP4 tosylate
    Inhibitor ≥98.0%
    TMPyP4 tosylate (TMP 1363) is a quadruplex-specific ligand. TMPyP4 tosylate inhibits the interaction between G-quadruplexes and IGF-1. TMPyP4 tosylate is a telomerase inhibitor and inhibits cancer cells proliferation. TMPyP4 tosylate is also a stabilizer of nucleic acid secondary structure and an acetylcholinesterase inhibitor. Besides, TMPyP4 tosylate has antiviral activity against SARS-CoV-2.
  • HY-76299
    Inhibitor 99.96%
    Galanthamine is a potent acetylcholinesterase (AChE) inhibitor with an IC50 of 500 nM.
  • HY-107569
    Inhibitor ≥99.0%
    Garcinol, a polyisoprenylated benzophenone harvested from Garcinia indica, exerts anti-cholinesterase properties towards acetyl cholinesterase (AChE) and butyrylcholinesterase (BChE) with IC50s of 0.66 µM and 7.39 µM, respectively. Garcinol also inhibits histone acetyltransferases (HATs, IC50= 7 μM) and p300/CPB-associated factor (PCAF, IC50 = 5 μM). Garcinol has anti-inflammatory and anti-cancer activity.
  • HY-P5189A
    His-D-beta-Nal-Ala-Trp-D-Phe-Lys-NH2 TFA
    His-D-beta-Nal-Ala-Trp-D-Phe-Lys-NH2 TFA, is a growth hormone releasing peptide, as well as a metabolite of GHRP-1. GHRP-1, or Ala-His-D-beta Nal-Ala-Trp-D-Phe-Lys-NH2, has the effect of promoting the release of growth hormone (GH). GHRP-1 increases GH release and increases [Ca2+]i levels in static monolayer cells of rat pituitary gland, but does not affect cAMP levels.
  • HY-14566A
    (S)-Donepezil is a S-enantiomer of Donepezil (HY-14566). Donepezil is a specific and potent AChE inhibitor.
  • HY-P2616A
    Mca-YVADAP-Lys(Dnp)-OH TFA
    Chemical 98.85%
    Mca-YVADAP-Lys(Dnp)-OH TFA is a fluorogenic substrate for caspase-1 and angiotensin-converting enzyme 2 (ACE2).
  • HY-B1266
    Physostigmine salicylate
    Inhibitor 99.37%
    Physostigmine salicylate (Eserine salicylate) is a reversible acetylcholinesterase (AChE) inhibitor. Physostigmine salicylate crosses the blood-brain barrier and stimulates central cholinergic neurotransmission. Physostigmine salicylate can reverse memory deficits in transgenic mice with Alzheimer's disease. Physostigmine salicylate is also an antidote for anticholinergic poisoning.
  • HY-14566
    Inhibitor 99.91%
    Donepezil (E2020 free base) is a specific and potent AChE inhibitor with IC50s of 8.12 nM and 11.6 nM for bovine AChE and human AChE, respectively.
  • HY-N0342
    Inhibitor 99.70%
    Scopoletin is an inhibitor of acetylcholinesterase (AChE).
  • HY-17368
    Inhibitor 99.90%
    Rivastigmine (S-Rivastigmine) is an orally active and potent cholinesterase (ChE) inhibitor and inhibits butyrylcholinesterase (BChE) and acetylcholinesteras (AChE) with IC50s of 0.037 μM , 4.15 μM, respectively. Rivastigmine can pass the blood brain barrier (BBB). Rivastigmine is a parasympathomimetic or cholinergic agent used for the research of mild to moderate dementia of the Alzheimer's type and dementia due to Parkinson's disease.
  • HY-N0793
    Inhibitor 99.64%
    Protopine (Corydinine), an isoquinoline alkaloid, is a specific reversible and competitive inhibitor of acetylcholinesterase. Protopine exhibits anti-inflammation, anti-microbial, anti-angiogenic and anti-tumour activity.
  • HY-17552
    Activator ≥98.0%
    sn-Glycero-3-phosphocholine (Choline Alfoscerate) is a precursor in the biosynthesis of brain phospholipids and increases the bioavailability of choline in nervous tissue. sn-Glycero-3-phosphocholine (Choline Alfoscerate) has significant effects on cognitive function with a good safety profile and tolerability, and is effective in the treatment of Alzheimer's disease and dementia.
  • HY-17387
    (-)-Huperzine A
    Inhibitor 99.00%
    (-)-Huperzine A (Huperzine A) is an alkaloid isolated from Huperzia serrata, with neuroprotective activity. (-)-Huperzine A is a potent, highly specific, reversible and blood-brain barrier penetrant inhibitor of acetylcholinesterase (AChE), with an IC50 of 82 nM. (-)-Huperzine A also is non-competitive antagonist of N-methyl-D-aspartate glutamate (NMDA) receptor. (-)-Huperzine A is developed for the research of neurodegenerative diseases, including Alzheimer’s disease.
  • HY-B0949
    Protriptyline hydrochloride
    Inhibitor 99.91%
    Protriptyline hydrochloride is a tricyclic antidepressant (TCA), specifically a secondary amine, for the treatment of depression and ADHD.
  • HY-B2152
    Hemicholinium 3
    Inhibitor 99.71%
    Hemicholinium 3 is a competitive inhibitor of the high affinity choline transporter (HACU) with a Ki value of 25 nM. Hemicholinium 3, a neuromuscular blocking agent which inhibits the synthesis and the release of acetylcholine (ACh). Hemicholinium 3 inhibits the Epibatidine-evoked contraction and [3H]acetylcholine release with IC50s of 897 nM and 693 nM, respectively.
  • HY-N0285
    Inhibitor 98.00%
    Imperatorin is an effective of NO synthesis inhibitor (IC50=9.2 μmol), which also is a BChE inhibitor (IC50=31.4 μmol). Imperatorin is a weak agonist of TRPV1 with EC50 of 12.6±3.2 μM.
  • HY-B1488
    Tacrine hydrochloride
    Inhibitor 99.95%
    Tacrine hydrochloride is a potent inhibitor of both AChE and BChE, with IC50s of 31 nM and 25.6 nM, respectively. Tacrine hydrochloride is also a NMDAR inhibitor, with an IC50 of 26 μM. Tacrine hydrochloride can be used for the research of Alzheimer’s disease.
  • HY-N2181
    Inhibitor 99.39%
    Acetylshikonin, derived from the root of Lithospermum erythrorhizon, has anti-cancer and antiinflammation activity. Acetylshikonin is a non-selective cytochrome P450 inhibitor against all P450s (IC50 values range from 1.4-4.0 μM). Acetylshikonin is an AChE inhibitor and exhibits potent antiapoptosis activity.

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