Cholesterol-dependent tetanolysin damage to liposomes - PubMed (original) (raw)

Cholesterol-dependent tetanolysin damage to liposomes

C R Alving et al. Biochim Biophys Acta. 1979.

Abstract

Tetanolysin caused membrane damage, resulting in release of trapped glucose from liposomes containing cholesterol. Maximum glucose release occurred from liposomes that contained 50 mol% cholesterol. At higher or lower levels of cholesterol, glucose release was reduced and glucose release did not occur at all below 40 mol% cholesterol. The apparent activity of tetanolysin was not influenced by temperature (24 degrees C compared to 32 degrees C) or by liposomal phospholipid fatty acyl chain length. We conclude that tetanolysin caused cholesterol-dependent lysin-mediated damage to liposomes, possibly by means of a pore consisting of a complex of toxin and cholesterol.

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