0000000001088950

AUTHOR

Annette Nicke

0000-0001-6798-505x

showing 2 related works from this author

α-Conotoxins EpI and AuIB switch subtype selectivity and activity in native versus recombinant nicotinic acetylcholine receptors

2003

The Xenopus laevis oocyte expression system was used to determine the activities of alpha-conotoxins EpI and the ribbon isomer of AuIB, on defined nicotinic acetylcholine receptors (nAChRs). In contrast to previous findings on intracardiac ganglion neurones, alpha-EpI showed no significant activity on oocyte-expressed alpha3beta4 and alpha3beta2 nAChRs but blocked the alpha7 nAChR with an IC50 value of 30 nM. A similar IC50 value (103 nM) was obtained on the alpha7/5HT3 chimeric receptor stably expressed in mammalian cells. Ribbon AuIB maintained its selectivity on oocyte-expressed alpha3beta4 receptors but unlike in native cells, where it was 10-fold more potent than native alpha-AuIB, had…

α7 nicotinic acetylcholine receptorα-Conotoxin AuIBRecombinant Fusion ProteinsBiophysicsXenopusNicotinic AntagonistsReceptors NicotinicPharmacologyTransfectionBiochemistrycomplex mixturesSubstrate SpecificityInhibitory Concentration 50Xenopus laevisStructural BiologyGeneticsmedicineAnimalsConotoxinNicotinic AntagonistReceptorMolecular BiologyAcetylcholine receptorbiologyα-Conotoxin EpICell Biologybiology.organism_classificationRatsCell biologyProtein SubunitsNicotinic acetylcholine receptorNicotinic agonistnervous systemIntracardiac gangliaOocytessense organsReceptors Serotonin 5-HT3ConotoxinsAcetylcholineXenopus laevis oocytemedicine.drugFEBS Letters
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Corrigendum to: α-Conotoxins EpI and AuIB switch subtype selectivity and activity in native versus recombinant nicotinic acetylcholine receptors (FEB…

2003

Corrigendum to: K-Conotoxins EpI and AuIB switch subtype selectivity and activity in native versus recombinant nicotinic acetylcholine receptors (FEBS 27779) [FEBS Letters 554 (2003) 219^223]C Annette Nickea;1, Marek Samochockib, Marion L. Loughnana, Paramjit S. Bansala, Alfred Maelickeb, Richard J. Lewisa; aInstitute for Molecular Bioscience, University of Queensland, Brisbane, Qld. 4072, Australia bInstitute for Physiological Chemistry and Pathobiochemistry, University of Mainz, D-55099 Mainz, Germany First published online 24 December 2003

ChemistryBiophysicsSubtype selectivityCell BiologyPharmacologyBiochemistrylaw.inventionNicotinic agonistGanglion type nicotinic receptorStructural BiologylawPhysiological chemistryGeneticsRecombinant DNAAlpha-4 beta-2 nicotinic receptorMolecular BiologyAcetylcholine receptorα conotoxinFEBS Letters
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