Rigidity of loop 1 contributes to equipotency of globular and ribbon isomers of α-conotoxin AusIA
Scientific 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
Molecules, 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
A novel α-conotoxin, PeIA, cloned from Conus pergrandis, discriminates between Rat α9α10 and α7 nicotinic cholinergic receptors [PDF]
, 2005 The α9 and α10 nicotinic cholinergic subunits assemble to form the receptor believed to mediate synaptic transmission between efferent olivocochlear fibers and hair cells of the cochlea, one of the few examples of postsynaptic function for a non-muscle ...
Arredondo +59 more
core +1 more source
Blockade of neuronal α7-nAChR by α-conotoxin ImI explained by computational scanning and energy calculations. [PDF]
PLoS 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
Toxins, 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
Less is more: Design of a highly stable disulfide-deleted mutant of analgesic cyclic alpha-conotoxin Vc1.1 [PDF]
, 2015 Cyclic alpha-conotoxin Vc1.1 (cVc1.1) is an orally active peptide with analgesic activity in rat models of neuropathic pain. It has two disulfide bonds, which can have three different connectivities, one of which is the native and active form.
Adams, D +7 more
core +3 more sources
The synthesis and structure of an n-terminal dodecanoic acid conjugate of a-conotoxin MII [PDF]
, 2001 The alpha-conotoxin MII is a 16 amino acid long peptide toxin isolated from the marine snail, Conus magus. This toxin has been found to be a highly selective and potent inhibitor of neuronal nicotinic acetylcholine receptors of the subtype alpha3beta2 ...
Adams, D. J. +7 more
core +1 more source
Neuronal Nicotinic Acetylcholine Receptor Modulators from Cone Snails
Marine 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
Venomous secretions from marine snails of the Terebridae family target acetylcholine receptors [PDF]
, 2013 Venoms from cone snails (Conidae) have been extensively studied during the last decades, but those from other members of the suborder Toxoglossa, such as of Terebridae and Turridae superfamilies attracted less interest so far. Here, we report the effects
Kauferstein, Silke +8 more
core +3 more sources
Monkey adrenal chromaffin cells express α6β4* nicotinic acetylcholine receptors. [PDF]
PLoS 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