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. 1982 Nov;152(2):888-92.
doi: 10.1128/jb.152.2.888-892.1982.

Structural characteristics of tetanolysin and its binding to lipid vesicles

S Rottem, R M Cole, W H Habig, M F Barile, M C Hardegree

Structural characteristics of tetanolysin and its binding to lipid vesicles

S Rottem et al. J Bacteriol. 1982 Nov.

Abstract

Tetanolysin binding to lipid vesicles was found to depend on the molar ratio of cholesterol to phospholipid, being low in vesicles containing up to 20 mol% cholesterol and high in vesicles containing more than 33 mol%. High concentrations of purified tetanolysin preparations formed arc- and ring-shaped structures. The structures were not readily detectable in diluted preparations unless incubated with lipid vesicles containing high molar ratios of cholesterol to phospholipid. It is suggested that the toxin is concentrated on the vesicles to local concentrations high enough to form the arcs and rings.

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