Complex sentence: The ability to associate with membranes is a definitive feature of antimicrobial peptides although membrane permeabilisation is not necessarily the even though the peptides have a variety of antimicrobial activities ranging from membrane permeabilization to action on a range of cytoplasmic targets.
Split into simpler sentences: The ability to associate with membranes is a definitive feature of antimicrobial peptides although membrane permeabilisation is not necessary. These peptides have a variety of antimicrobial activities ranging from membrane permeabilization to action on a range of cytoplasmic targets.