Results 21 to 30 of about 1,350 (124)

Rigidity of loop 1 contributes to equipotency of globular and ribbon isomers of α-conotoxin AusIA

open access: yesScientific Reports, 2021
α-Conotoxins are small disulfide-rich peptides targeting nicotinic acetylcholine receptors (nAChRs) characterised by a CICII-Xm-CIII-Xn-CIV framework that invariably adopt the native globular conformations which is typically most potent. α-Conotoxins are
Thao N. T. Ho   +2 more
doaj   +1 more source

Venom-Derived Neurotoxins Targeting Nicotinic Acetylcholine Receptors

open access: yesMolecules, 2021
Acetylcholine was the first neurotransmitter described. The receptors targeted by acetylcholine are found within organisms spanning different phyla and position themselves as very attractive targets for predation, as well as for defense. Venoms of snakes
Ayaulym Bekbossynova   +2 more
doaj   +1 more source

Blockade of neuronal α7-nAChR by α-conotoxin ImI explained by computational scanning and energy calculations. [PDF]

open access: yesPLoS Computational Biology, 2011
α-Conotoxins potently inhibit isoforms of nicotinic acetylcholine receptors (nAChRs), which are essential for neuronal and neuromuscular transmission.
Rilei Yu, David J Craik, Quentin Kaas
doaj   +1 more source

Synthetic α-Conotoxin Mutants as Probes for Studying Nicotinic Acetylcholine Receptors and in the Development of Novel Drug Leads

open access: yesToxins, 2010
α-Conotoxins are peptide neurotoxins isolated from venomous marine cone snails that are potent and selective antagonists for different subtypes of nicotinic acetylcholine receptors (nAChRs).
Christopher J. Armishaw
doaj   +1 more source

Neuronal Nicotinic Acetylcholine Receptor Modulators from Cone Snails

open access: yesMarine Drugs, 2018
Marine cone snails are a large family of gastropods that have evolved highly potent venoms for predation and defense. The cone snail venom has exceptional molecular diversity in neuropharmacologically active compounds, targeting a range of receptors, ion
Nikita Abraham, Richard J. Lewis
doaj   +1 more source

α-Conotoxin Peptidomimetics: Probing the Minimal Binding Motif for Effective Analgesia

open access: yesToxins, 2020
Several analgesic α-conotoxins have been isolated from marine cone snails. Structural modification of native peptides has provided potent and selective analogues for two of its known biological targets—nicotinic acetylcholine and γ-aminobutyric acid ...
Adam C. Kennedy   +5 more
doaj   +1 more source

Monkey adrenal chromaffin cells express α6β4* nicotinic acetylcholine receptors. [PDF]

open access: yesPLoS ONE, 2014
Nicotinic acetylcholine receptors (nAChRs) that contain α6 and β4 subunits have been demonstrated functionally in human adrenal chromaffin cells, rat dorsal root ganglion neurons, and on noradrenergic terminals in the hippocampus of adolescent mice.
Alicia Hernández-Vivanco   +5 more
doaj   +1 more source

Toxinology of Marine Venomous Snails

open access: yesIranian South Medical Journal, 2021
A surprisingly large number of sea snail species are venomous. Cone snail venoms are produced in a lengthy tubular duct from a complex venom gland and form a cocktail of many toxins, particularly conotoxins which have high potency and specificity for ...
Gholam Hossein Mohebbi, Iraj Nabipour
doaj  

Discovery, Pharmacological Characterisation and NMR Structure of the Novel µ-Conotoxin SxIIIC, a Potent and Irreversible NaV Channel Inhibitor

open access: yesBiomedicines, 2020
Voltage-gated sodium (NaV) channel subtypes, including NaV1.7, are promising targets for the treatment of neurological diseases, such as chronic pain. Cone snail-derived µ-conotoxins are small, potent NaV channel inhibitors which represent potential drug
Kirsten L. McMahon   +5 more
doaj   +1 more source

A Novel α4/7-Conotoxin QuIA Selectively Inhibits α3β2 and α6/α3β4 Nicotinic Acetylcholine Receptor Subtypes with High Efficacy

open access: yesMarine Drugs, 2022
α6β4 nAChR is expressed in the peripheral and central nervous systems and is associated with pain, addiction, and movement disorders. Natural α-conotoxins (α-CTxs) can effectively block different nAChR subtypes with higher efficacy and selectivity ...
Liujun Wang   +5 more
doaj   +1 more source

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