Results 61 to 70 of about 1,350 (124)

Influence of Disulfide Connectivity on Structure and Bioactivity of α-Conotoxin TxIA

Molecules, 2014
Cone snails express a sophisticated arsenal of small bioactive peptides known as conopeptides or conotoxins (CTxs). Through evolutionary selection, these peptides have gained the ability to interact with a range of ion channels and receptors, such as ...
Yong Wu, Xiaosa Wu, Jinpeng Yu, Xiaopeng Zhu, Dongting Zhangsun, Sulan Luo   +5 more
doaj   +1 more source

A novel α-conotoxin [D1G, ΔQ14] LvIC decreased mouse locomotor activity

Frontiers in Pharmacology
Background and PurposeNicotinic acetylcholine receptors (nAChRs), which are expressed throughout the mammalian brain, mediate a variety of physiological functions. Despite their widespread presence, the functions of nAChRs are not yet fully understood. α-
Wen Wang, Wen Wang, Meiting Wang, Huanbai Wang, Weifeng Xu, Conggang Wang, Jie Pei, Xiaodan Li, Dongting Zhangsun, Dongting Zhangsun   +9 more
doaj   +1 more source

Posttranslational modifications of α-conotoxins: sulfotyrosine and C-terminal amidation stabilise structures and increase acetylcholine receptor binding. [PDF]

RSC Med Chem, 2021
Ho TNT, Lee HS, Swaminathan S, Goodwin L, Rai N, Ushay B, Lewis RJ, Rosengren KJ, Conibear AC.   +8 more
europepmc   +1 more source

Subtype-Selective Peptide and Protein Neurotoxic Inhibitors of Nicotinic Acetylcholine Receptors Enhance Proliferation of Patient-Derived Glioblastoma Cell Lines

Toxins
Glioblastoma multiforme (GBM) is the most aggressive type of brain cancer, with a poor prognosis. GBM cells, which develop in the environment of neural tissue, often exploit neurotransmitters and their receptors to promote their own growth and invasion ...
Elena Gondarenko, Diana Mazur, Marina Masliakova, Yana Ryabukha, Igor Kasheverov, Yuri Utkin, Victor Tsetlin, Mikhail Shahparonov, Denis Kudryavtsev, Nadine Antipova   +9 more
doaj   +1 more source

Cervical Cancer Correlates with the Differential Expression of Nicotinic Acetylcholine Receptors and Reveals Therapeutic Targets

Marine Drugs, 2019
Nicotinic acetylcholine receptors (nAChRs) are associated with various cancers, but the relation between nAChRs and cervical cancer remains unclear. Therefore, this study investigated the differential expression of nAChR subunits in human cervical cancer
Yiqiao Liu, Jiang Qian, Zhihua Sun, Dongting Zhangsun, Sulan Luo   +4 more
doaj   +1 more source

Stapling Cysteine[2,4] Disulfide Bond of α-Conotoxin LsIA and Its Potential in Target Delivery

Marine Drugs
α-Conotoxins, as selective nAChR antagonists, can be valuable tools for targeted drug delivery and fluorescent labeling, while conotoxin-drug or conotoxin-fluorescent conjugates through the disulfide bond are rarely reported.
Xin Sun, Jiangnan Hu, Maomao Ren, Hong Chang, Dongting Zhangsun, Baojian Zhang, Shuai Dong   +6 more
doaj   +1 more source

Using Constellation Pharmacology to Characterize a Novel α-Conotoxin from Conus ateralbus

Marine Drugs
The venom of cone snails has been proven to be a rich source of bioactive peptides that target a variety of ion channels and receptors. α-Conotoxins (αCtx) interact with nicotinic acetylcholine receptors (nAChRs) and are powerful tools for investigating ...
Jorge L. B. Neves, Cristoval Urcino, Kevin Chase, Cheryl Dowell, Arik J. Hone, David Morgenstern, Victor M. Chua, Iris Bea L. Ramiro, Julita S. Imperial, Lee S. Leavitt, Jasmine Phan, Fernando A. Fisher, Maren Watkins, Shrinivasan Raghuraman, Jortan O. Tun, Beatrix M. Ueberheide, J. Michael McIntosh, Vitor Vasconcelos, Baldomero M. Olivera, Joanna Gajewiak   +19 more
doaj   +1 more source

Corrigendum: Crystal structure of the monomeric extracellular domain of α9 nicotinic receptor subunit in complex with α-conotoxin RgIA: Molecular dynamics insights into RgIA binding to α9α10 nicotinic receptors

Frontiers in Pharmacology, 2022
Marios Zouridakis, Athanasios Papakyriakou, Igor A. Ivanov, Igor E. Kasheverov, Igor E. Kasheverov, Victor Tsetlin, Victor Tsetlin, Socrates Tzartos, Socrates Tzartos, Petros Giastas   +9 more
doaj   +1 more source

On-resin strategy to label α-conotoxins: Cy5-RgIA, a potent α9α10 nicotinic acetylcholine receptor imaging probe. [PDF]

Aust J Chem, 2020
Muttenthaler M, Nevin ST, Inserra M, Lewis RJ, Adams DJ, Alewood P.   +5 more
europepmc   +1 more source

Fluorescent α-Conotoxin [Q1G, ΔR14]LvIB Identifies the Distribution of α7 Nicotinic Acetylcholine Receptor in the Rat Brain

Marine Drugs
α7 nicotinic acetylcholine receptors (nAChRs) are mainly distributed in the central nervous system (CNS), including the hippocampus, striatum, and cortex of the brain. The α7 nAChR has high Ca2+ permeability and can be quickly activated and desensitized,
Hongyu Shan, Nan Wang, Xinyu Gao, Zihan Wang, Jinpeng Yu, Dongting Zhangsun, Xiaopeng Zhu, Sulan Luo   +7 more
doaj   +1 more source