Cyclic Peptides as Molecular Adapters for a Pore-Forming Protein.

Examines cyclic peptides as part of the search for a class of adapters more versatile than cyclodextrins. Alteration of unitary conductance and ion selectivity; Ability of positively charged peptides to act as binding sites for various small polyanions; Modulation of single-channel currents through pores containing cyclic peptide adapters.