| abstract |
A soluble derivative of a soluble polypeptide, which comprises two or more heterologous membrane binding elements with low membrane affinity covalently associated with the polypeptide, the elements being soluble in aqueous solution, and the elements being capable of interacting, independently and with themodynamic additivity, with components of cellular or artificial membranes exposed to extracellular fluids, characterized in that the membrane binding elements target lipid raft components of the membrane and bind to the lipid rafts to localize the polypeptide at the lipid rafts. |