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dc.contributor.authorKasheverov, Igor E
dc.contributor.authorLogashina, Yulia A.
dc.contributor.authorKornilov, Fedor D
dc.contributor.authorLushpa, Vladislav A
dc.contributor.authorMaleeva, Ekaterina E
dc.contributor.authorKorolkova, Yuliya V.
dc.contributor.authorYu, Jinpeng
dc.contributor.authorZhu, Xiaopeng
dc.contributor.authorZhangsun, Dongting
dc.contributor.authorLuo, Sulan
dc.contributor.authorStensvåg, Klara
dc.contributor.authorKudryavtsev, Denis S
dc.contributor.authorMineev, Konstantin S.
dc.contributor.authorAndreev, Yaroslav A.
dc.date.accessioned2023-03-21T06:21:55Z
dc.date.available2023-03-21T06:21:55Z
dc.date.issued2022-12-30
dc.description.abstractNicotinic acetylcholine receptors (nAChRs) play an important role in the functioning of the central and peripheral nervous systems, and other organs of living creatures. There are several subtypes of nAChRs, and almost all of them are considered as pharmacological targets in different pathological states. The crude venom of the sea anemone Metridium senile showed the ability to interact with nAChRs. Four novel peptides (Ms11a-1–Ms11a-4) with nAChR binding activity were isolated. These peptides stabilized by three disulfide bridges have no noticeable homology with any known peptides. Ms11a-1–Ms11a-4 showed different binding activity towards the muscle-type nAChR from the Torpedo californica ray. The study of functional activity and selectivity for the most potent peptide (Ms11a-3) revealed the highest antagonism towards the heterologous rat α9α10 nAChR compared to the muscle and α7 receptors. Structural NMR analysis of two toxins (Ms11a-2 and Ms11a-3) showed that they belong to a new variant of the inhibitor cystine knot (ICK) fold but have a prolonged loop between the fifth and sixth cysteine residues. Peptides Ms11a-1–Ms11a-4 could represent new pharmacological tools since they have structures different from other known nAChRs inhibitors.en_US
dc.identifier.citationKasheverov, Logashina YA, Kornilov, Lushpa, Maleeva, Korolkova YV, Yu, Zhu X, Zhangsun, Luo, Stensvåg K, Kudryavtsev, Mineev KS, Andreev YA. Peptides from the Sea Anemone Metridium senile with Modified Inhibitor Cystine Knot (ICK) Fold Inhibit Nicotinic Acetylcholine Receptors. Toxins. 2022;15(1)en_US
dc.identifier.cristinIDFRIDAID 2134973
dc.identifier.doi10.3390/toxins15010028
dc.identifier.issn2072-6651
dc.identifier.urihttps://hdl.handle.net/10037/28800
dc.language.isoengen_US
dc.publisherMDPIen_US
dc.relation.journalToxins
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2022 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titlePeptides from the Sea Anemone Metridium senile with Modified Inhibitor Cystine Knot (ICK) Fold Inhibit Nicotinic Acetylcholine Receptorsen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)