Sensitivity of phospholipase C (Bacillus cereus) activity to lipid packing in sonicated lipid mixtures.


We have recently demonstrated that phospholipase C (PLC) activity on membranes decreases in the presence of membrane-active peptides such as alamethicin, gramicidin S, and melittin [Rao, N. M. (1992) Biochem. Biophys. Res. Commun. 182, 682-688]. Since these peptides affect lipid packing in the membrane and induce nonbilayer phases depending on the lipid… (More)


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