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Studies of the Ligand Binding to Cholera Toxin, I. The Lipophilic Moiety of Sialoglycolipids

Studies of the Ligand Binding to Cholera Toxin, I. The Lipophilic Moiety of Sialoglycolipids Hoppe-Seyler's Z. Physiol. Chem. Bd. 357, S. 1637 - 1646, November 1976 Studies of the Ligand Binding to Cholera Toxin, I The Lipophilic Moiety of Sialoglycolipids* Herbert WIEGANDT, Wolfgang ZIEGLER, Joseph STAERK, Theodor KRANZ, Hans Jörg RONNEBERGER, Harald ZILG, Karl-Anders KARLSSON and Bengt E. SAMUELSSON Physiologisch Chemisches Institut I der Universität Marburg, Behringwerke AG, Marburg Dept. of Medical Biochemistry, University of Göteborg (Received 12 July 1976) Summary: The fixation of cholera toxin by ganglioside G G tetl is dependent on the nature of the carbohydrate as well as the lipid moiety of the glycolipid. The role of the lipid in binding to the toxin was investigated with synthetic ganglioside analogues (gangliosidoides). The interaction between glycolipid and toxin was followed by precipitate formation, by inhibition of toxicity and in polyacrylamide gel electrophoresis. For specific precipitation, an aliphatic hydrocarbon chain at least 14 C-atoms in length is required. Some of the gangliosidoides form high molecular weight complexes with cholera toxin at lower molar ratios of ligand to protein than the natural compound. None of the synthetic gangliosidoides equalled natural ganglioside in its ability to inhibit the effects of the toxin in vivo, but some did show considerable inhibitory activity in http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png hoppe-seyler's zeitschrift für physiologische chemie de Gruyter

Studies of the Ligand Binding to Cholera Toxin, I. The Lipophilic Moiety of Sialoglycolipids

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Publisher
de Gruyter
Copyright
Copyright © 1976 by the
ISSN
0018-4888
eISSN
1437-4315
DOI
10.1515/bchm2.1976.357.2.1637
Publisher site
See Article on Publisher Site

Abstract

Hoppe-Seyler's Z. Physiol. Chem. Bd. 357, S. 1637 - 1646, November 1976 Studies of the Ligand Binding to Cholera Toxin, I The Lipophilic Moiety of Sialoglycolipids* Herbert WIEGANDT, Wolfgang ZIEGLER, Joseph STAERK, Theodor KRANZ, Hans Jörg RONNEBERGER, Harald ZILG, Karl-Anders KARLSSON and Bengt E. SAMUELSSON Physiologisch Chemisches Institut I der Universität Marburg, Behringwerke AG, Marburg Dept. of Medical Biochemistry, University of Göteborg (Received 12 July 1976) Summary: The fixation of cholera toxin by ganglioside G G tetl is dependent on the nature of the carbohydrate as well as the lipid moiety of the glycolipid. The role of the lipid in binding to the toxin was investigated with synthetic ganglioside analogues (gangliosidoides). The interaction between glycolipid and toxin was followed by precipitate formation, by inhibition of toxicity and in polyacrylamide gel electrophoresis. For specific precipitation, an aliphatic hydrocarbon chain at least 14 C-atoms in length is required. Some of the gangliosidoides form high molecular weight complexes with cholera toxin at lower molar ratios of ligand to protein than the natural compound. None of the synthetic gangliosidoides equalled natural ganglioside in its ability to inhibit the effects of the toxin in vivo, but some did show considerable inhibitory activity in

Journal

hoppe-seyler's zeitschrift für physiologische chemie – de Gruyter

Published: Jan 1, 1976

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