Sigel, Erwin

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2016

Maldifassi, Maria Constanza; Wongsamitkul, Nisa; Baur, Roland; Sigel, Erwin (2016). Xenopus Oocytes: Optimized Methods for Microinjection, Removal of Follicular Cell Layers, and Fast Solution Changes in Electrophysiological Experiments. Journal of visualized experiments(118) MYJoVE Corporation 10.3791/55034

Maldifassi, Maria Constanza; Baur, Roland; Sigel, Erwin (2016). Molecular mode of action of CGS 9895 at α1 β2 γ2 GABAA receptors. Journal of neurochemistry, 138(5), pp. 722-730. Wiley 10.1111/jnc.13711

Wongsamitkul, Nisa; Baur, Roland; Sigel, Erwin (2016). Toward Understanding Functional Properties and Subunit Arrangement of α4β2δ γ-Aminobutyric Acid, Type A (GABAA) Receptors. Journal of biological chemistry, 291(35), pp. 18474-18483. American Society for Biochemistry and Molecular Biology 10.1074/jbc.M116.738906

Maldifassi, Maria Constanza; Baur, Roland; Pierce, David; Nourmahnad, Anahita; Forman, Stuart A; Sigel, Erwin (2016). Novel positive allosteric modulators of GABAA receptors with anesthetic activity. Scientific Reports, 6(25943), p. 25943. Nature Publishing Group 10.1038/srep25943

Crockett, Sara; Baur, Roland; Kunert, Olaf; Belaj, Ferdinand; Sigel, Erwin (2016). A new chromanone derivative isolated from Hypericum lissophloeus (Hypericaceae) potentiates GABAA receptor currents in a subunit specific fashion. Bioorganic & medicinal chemistry, 24(4), pp. 681-685. Elsevier 10.1016/j.bmc.2015.12.037

Maldifassi, Maria Constanza; Baur, Roland; Sigel, Erwin (2016). Functional sites involved in modulation of the GABAA receptor channel by the intravenous anesthetics propofol, etomidate and pentobarbital. Neuropharmacology, 105, pp. 207-214. Elsevier 10.1016/j.neuropharm.2016.01.003

2015

Steinmann, Michael Eduard; González Salgado, Amaia; Bütikofer, Peter; Mäser, Pascal; Sigel, Erwin (2015). A heteromeric potassium channel involved in the modulation of the plasma membrane potential is essential for the survival of African trypanosomes. FASEB journal, 29(8), pp. 3228-3237. Federation of American Societies for Experimental Biology 10.1096/fj.15-271353

Middendorp, Simon; Maldifassi, Maria Constanza; Baur, Roland; Sigel, Erwin (2015). Positive modulation of synaptic and extrasynaptic GABAA receptors by an antagonist of the high affinity benzodiazepine binding site. Neuropharmacology, 95, pp. 459-467. Elsevier 10.1016/j.neuropharm.2015.04.027

González Salgado, Amaia; Steinmann, Michael Eduard; Major, Louise L; Sigel, Erwin; Reymond, Jean-Louis; Smith, Terry K; Bütikofer, Peter (2015). Trypanosoma brucei Bloodstream Forms Depend upon Uptake of myo-Inositol for Golgi Complex Phosphatidylinositol Synthesis and Normal Cell Growth. Eukaryotic cell, 14(6), pp. 616-624. American Society for Microbiology ASM 10.1128/EC.00038-15

Baur, Roland; Beech, Robin; Sigel, Erwin; Rufener, Lucien (2015). Monepantel irreversibly binds to and opens Haemonchus contortus MPTL-1 and Caenorhabditis elegans ACR-20 receptors. Molecular pharmacology, 87(1), pp. 96-102. American Society for Pharmacology and Experimental Therapeutics 10.1124/mol.114.095653

Serricchio, Mauro; Schmid, Adrien W; Steinmann, Michael Eduard; Sigel, Erwin; Rauch, Monika; Julkowska, Daria; Bonnefoy, Serge; Fort, Cécile; Bastin, Philippe; Bütikofer, Peter (2015). Flagellar membranes are rich in raft-forming phospholipids. Biology open BiO, 4(9), pp. 1143-1153. Company of Biologists 10.1242/bio.011957

Fedurco, Milan; Gregorová, Jana; Šebrlová, Kristýna; Kantorová, Jana; Peš, Ondřej; Baur, Roland; Sigel, Erwin; Táborská, Eva (2015). Modulatory Effects of Eschscholzia californica Alkaloids on Recombinant GABAA Receptors. Biochemistry research international, 2015(617620), p. 617620. Hindawi Publishing Corporation 10.1155/2015/617620

2014

Fuchs, Alexander; Baur, Roland; Schoeder, Clara; Sigel, Erwin; Müller, Christa E (2014). Structural analogues of the natural products magnolol and honokiol as potent allosteric potentiators of GABA(A) receptors. Bioorganic & medicinal chemistry, 22(24), pp. 6908-6917. Elsevier 10.1016/j.bmc.2014.10.027

Baur, Roland; Schuehly, Wolfgang; Sigel, Erwin (2014). Moderate concentrations of 4-O-methylhonokiol potentiate GABAA receptor currents stronger than honokiol. Biochimica et biophysica acta (BBA) - general subjects, 1840(10), pp. 3017-3021. Elsevier 10.1016/j.bbagen.2014.06.016

Middendorp, Simon; Hurni, Evelyn; Schönberger, Matthias; Stein, Marco; Pangerl, Michael; Trauner, Dirk; Sigel, Erwin (2014). Relative positioning of classical benzodiazepines to the γ2-subunit of GABAA receptors. ACS Chemical Biology, 9(8), pp. 1846-1853. American Chemical Society 10.1021/cb500186a

Middendorp, Simon; Puthenkalam, Roshan; Baur, Roland; Ernst, Margot; Sigel, Erwin (2014). Accelerated discovery of novel benzodiazepine ligands by experiment-guided virtual screening. ACS Chemical Biology, 9(8), pp. 1854-1859. American Chemical Society 10.1021/cb5001873

Mathieu, Christoph; González Salgado, Amaia; Wirdnam, Corina; Meier, Stefan; Suter, Marianne; Inbar, Ehud; Mäser, Pascal; Zilberstein, Dan; Sigel, Erwin; Bütikofer, Peter; Rentsch, Doris (2014). Trypanosoma brucei eflornithine transporter AAT6 is a low-affinity low-selective transporter for neutral amino acids. Biochemical journal, 463(1), pp. 9-18. Portland Press 10.1042/BJ20140719

Carta, Valentina (2014). A novel open channel blocker of GABA-A receptors. (Dissertation, University of Bern, Graduate School for Cellular and Biomedical Sciences)

Carta, Valentina; Pangerl, Michael; Baur, Roland; Puthenkalam, Roshan; Ernst, Margot; Trauner, Dirk; Sigel, Erwin (2014). A pentasymmetric open channel blocker for Cys-loop receptor channels. PLoS ONE, 9(9), e106688. Public Library of Science 10.1371/journal.pone.0106688

2013

Baur, Roland; Gertsch, Jürg; Sigel, Erwin (2013). Do N-arachidonyl-glycine (NA-glycine) and 2-arachidonoyl glycerol (2-AG) share mode of action and the binding site on the β 2 subunit of GABA A receptors? PeerJ, 1, e149. PeerJ, Ltd 10.7717/peerj.149

Rufener, Lucien; Bedoni, Nicola; Baur, Roland; Rey, Samantha; Glauser, Dominique A.; Bouvier, Jacques; Beech, Robin; Sigel, Erwin; Puoti, Alessandro (2013). acr-23 Encodes a Monepantel-Sensitive Channel in Caenorhabditis elegans. PLoS pathogens, 9(8), e1003524. Public Library of Science 10.1371/journal.ppat.1003524

Macêdo, Juan P.; Schmidt, Remo S.; Mäser, Pascal; Rentsch, Doris; Vial, Henri J.; Sigel, Erwin; Bütikofer, Peter (2013). Characterization of choline uptake in Trypanosoma brucei procyclic and bloodstream forms. Molecular and biochemical parasitology, 190(1), pp. 16-22. Amsterdam: Elsevier 10.1016/j.molbiopara.2013.05.007

Baur, Roland; Kielar, Marie; Richter, Lars; Ernst, Margot; Ecker, Gerhard F.; Sigel, Erwin (2013). Molecular analysis of the site for 2-arachidonylglycerol (2-AG) on the β 2 subunit of GABA A receptors. Journal of neurochemistry, 126(1), pp. 29-36. Wiley-Blackwell 10.1111/jnc.12270

2012

Gonzalez-Salgado, Amaia; Steinmann, Michael E; Greganova, Eva; Rauch, Monika; Mäser, Pascal; Sigel, Erwin; Bütikofer, Peter (2012). myo-Inositol uptake is essential for bulk inositol phospholipid but not glycosylphosphatidylinositol synthesis in Trypanosoma brucei. Journal of biological chemistry, 287(16), pp. 13313-23. Bethesda, Md.: American Society for Biochemistry and Molecular Biology 10.1074/jbc.M112.344812

Sigel, Erwin; Steinmann, Michael E (2012). Structure, function, and modulation of GABA(A) receptors. Journal of biological chemistry, 287(48), pp. 40224-31. Bethesda, Md.: American Society for Biochemistry and Molecular Biology 10.1074/jbc.R112.386664

Stein, Marco; Middendorp, Simon J; Carta, Valentina; Pejo, Ervin; Raines, Douglas E; Forman, Stuart A; Sigel, Erwin; Trauner, Dirk (2012). Azo-propofols: photochromic potentiators of GABA(A) receptors. Angewandte Chemie (International ed.), 51(42), pp. 10500-4. Weinheim: Wiley-VCH 10.1002/anie.201205475

Lüscher, Benjamin P; Baur, Roland; Goeldner, Maurice; Sigel, Erwin (2012). Influence of GABA(A) receptor α subunit isoforms on the benzodiazepine binding site. PLoS ONE, 7(7), e42101. Lawrence, Kans.: Public Library of Science 10.1371/journal.pone.0042101

Kuhn-Nentwig, Lucia; Fedorova, Irina M; Lüscher, Benjamin P; Kopp, Lukas; Trachsel, Christian; Schaller, Johann; Vu Nguyen, Xuan Lan; Seebeck, Thomas; Streitberger, Kathrin; Nentwig, Wolfgang; Sigel, Erwin; Magazanik, Lev G (2012). A venom-derived neurotoxin, CsTx-1, from the spider Cupiennius salei exhibits cytolytic activities. Journal of biological chemistry, 287(30), pp. 25640-25649. Bethesda, Md.: American Society for Biochemistry and Molecular Biology 10.1074/jbc.M112.339051

Baur, R; Gertsch, J; Sigel, E (2012). The cannabinoid CB1 receptor antagonists rimonabant (SR141716) and AM251 directly potentiate GABA(A) receptors. British journal of pharmacology, 165(8), pp. 2479-84. Oxford: Wiley-Blackwell 10.1111/j.1476-5381.2011.01405.x

2011

Sigel, Erwin; Baur, Roland; Rácz, Ildiko; Marazzi, Janine; Smart, Trevor G; Zimmer, Andreas; Gertsch, Jürg (2011). The major central endocannabinoid directly acts at GABA(A) receptors. Proceedings of the National Academy of Sciences of the United States of America - PNAS, 108(44), pp. 18150-5. Washington, D.C.: National Academy of Sciences NAS 10.1073/pnas.1113444108

Sigel, Erwin; Lüscher, Benjamin P (2011). A closer look at the high affinity benzodiazepine binding site on GABAA receptors. Current topics in medicinal chemistry, 11(2), pp. 241-6. Hilversum: Bentham Science Publishers 10.2174/156802611794863562

2010

Baur, Roland; Lüscher, Benjamin P; Richter, Lars; Sigel, Erwin (2010). A residue close to ?1 loop F disrupts modulation of GABAA receptors by benzodiazepines while their binding is maintained. Journal of neurochemistry, 115(6), pp. 1478-85. Oxford: Wiley-Blackwell 10.1111/j.1471-4159.2010.07052.x

Rufener, Lucien; Baur, Roland; Kaminsky, Ronald; Mäser, Pascal; Sigel, Erwin (2010). Monepantel allosterically activates DEG-3/DES-2 channels of the gastrointestinal nematode Haemonchus contortus. Molecular pharmacology, 78(5), pp. 895-902. Bethesda, Md.: American Society for Pharmacology and Experimental Therapeutics 10.1124/mol.110.066498

Baur, Roland; Kaur, Kuldeep H; Sigel, Erwin (2010). Diversity of structure and function of alpha1alpha6beta3delta GABAA receptors: comparison with alpha1beta3delta and alpha6beta3delta receptors. Journal of biological chemistry, 285(23), pp. 17398-405. Bethesda, Md.: American Society for Biochemistry and Molecular Biology 10.1074/jbc.M110.108670

Kopp, Sascha; Baur, Roland; Sigel, Erwin; Möhler, Hanns; Altmann, Karl-Heinz (2010). Highly potent modulation of GABA(A) receptors by valerenic acid derivatives. ChemMedChem, 5(5), pp. 678-81. Weinheim: Wiley-VCH 10.1002/cmdc.201000062

Minier, F; Sigel, E (2010). Ligand-Operated Membrane Channels:GABA. In: Elsevier, Oxford (ed.) Encyclopedia of Biological Chemistry (W.J. Lennarz and M.C.Lade, eds). Amsterdam: Elsevier

Sigel, E (2010). Microinjection into Xenopus oocytes. In: John Wiley & Sons Ltd, Chichester (ed.) Encyclopedia of Life Sciences 2010. Chichester: John Wiley & Sons Ltd, Chichester

2009

Sigel, Erwin; Kaur, Kuldeep H; Lüscher, Benjamin P; Baur, Roland (2009). Use of concatamers to study GABAA receptor architecture and function: application to delta-subunit-containing receptors and possible pitfalls. Biochemical Society transactions, 37(Pt 6), pp. 1338-42. London: Portland Press 10.1042/BST0371338

Tan, Kelly R; Baur, Roland; Charon, Sébastien; Goeldner, Maurice; Sigel, Erwin (2009). Relative positioning of diazepam in the benzodiazepine-binding-pocket of GABA receptors. Journal of neurochemistry, 111(5), pp. 1264-73. Oxford: Wiley-Blackwell 10.1111/j.1471-4159.2009.06419.x

Baur, Roland; Kaur, Kuldeep H; Sigel, Erwin (2009). Structure of alpha6 beta3 delta GABA(A) receptors and their lack of ethanol sensitivity. Journal of neurochemistry, 111(5), pp. 1172-81. Oxford: Wiley-Blackwell 10.1111/j.1471-4159.2009.06387.x

Kaur, Kuldeep H; Baur, Roland; Sigel, Erwin (2009). Unanticipated structural and functional properties of delta-subunit-containing GABAA receptors. Journal of biological chemistry, 284(12), pp. 7889-96. Bethesda, Md.: American Society for Biochemistry and Molecular Biology 10.1074/jbc.M806484200

2008

Bollan, Karen A; Baur, Roland; Hales, Tim G; Sigel, Erwin; Connolly, Christopher N (2008). The promiscuous role of the epsilon subunit in GABA(A) receptor biogenesis. Molecular and cellular neuroscience, 37(3), pp. 610-621. San Diego, Calif.: Elsevier 10.1016/j.mcn.2007.12.011

Niggli, Verena; Sigel, Erwin (2008). Anticipating antiport in P-type ATPases. Trends in biochemical sciences, 33(4), pp. 156-60. Cambridge: Elsevier Current Trends 10.1016/j.tibs.2007.12.005

Burgunder, Jean-Marc; Huifang, Shang; Beguin, Pascal; Baur, Roland; Eng, Chew Soh; Seet, Raymond C S; Lim, Erle C H; Ong, Benjamin K C; Hunziker, Walter; Sigel, Erwin (2008). Novel chloride channel mutations leading to mild myotonia among Chinese. Neuromuscular disorders, 18(8), pp. 633-40. Amsterdam: Elsevier 10.1016/j.nmd.2008.05.007

Baur, Roland; Tan, Kelly R; Lüscher, Benjamin P; Gonthier, Anne; Goeldner, Maurice; Sigel, Erwin (2008). Covalent modification of GABAA receptor isoforms by a diazepam analogue provides evidence for a novel benzodiazepine binding site that prevents modulation by these drugs. Journal of neurochemistry, 106(6), pp. 2353-63. Oxford: Wiley-Blackwell 10.1111/j.1471-4159.2008.05574.x

2007

Tan, Kelly R; Baur, Roland; Gonthier, Anne; Goeldner, Maurice; Sigel, Erwin (2007). Two neighboring residues of loop A of the alpha1 subunit point towards the benzodiazepine binding site of GABAA receptors. FEBS letters, 581(24), pp. 4718-22. Amsterdam: Elsevier 10.1016/j.febslet.2007.08.068

Tan, Kelly R; Gonthier, Anne; Baur, Roland; Ernst, Margot; Goeldner, Maurice; Sigel, Erwin (2007). Proximity-accelerated chemical coupling reaction in the benzodiazepine-binding site of gamma-aminobutyric acid type A receptors: superposition of different allosteric modulators. Journal of biological chemistry, 282(36), pp. 26316-25. Bethesda, Md.: American Society for Biochemistry and Molecular Biology 10.1074/jbc.M702153200

Baur, Roland; Sigel, Erwin (2007). Replacement of histidine in position 105 in the alpha(5) subunit by cysteine stimulates zolpidem sensitivity of alpha(5)beta(2)gamma(2) GABA(A) receptors. Journal of neurochemistry, 103(6), pp. 2556-2564. Oxford: Wiley-Blackwell 10.1111/j.1471-4159.2007.04982.x

2006

Sigel, E; Baur, R; Boulineau, N; Minier, F (2006). Impact of subunit positioning on GABAA receptor function. Biochemical Society transactions, 34(Pt 5), pp. 868-71. London: Portland Press

Baur, Roland; Minier, Frédéric; Sigel, Erwin (2006). A GABA(A) receptor of defined subunit composition and positioning: concatenation of five subunits. FEBS letters, 580(6), pp. 1616-20. Amsterdam: Elsevier 10.1016/j.febslet.2006.02.002

1991

Peter, Andreas B.; Schittny, Johannes C.; Niggli, Verena; Reuter, Harald; Sigel, Erwin (1991). The polarized distribution of poly(A+)-mRNA-induced functional ion channels in the Xenopus oocyte plasma membrane is prevented by anticytoskeletal drugs. Journal of cell biology, 114(3), pp. 455-464. Rockefeller Institute Press

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