Abstract: The present invention is directed toward a method to produce recombinant fusion proteins in large quantities that are both highly homogenous and biologically active. In particular, the invention relates to a method for producing recombinant fusion proteins in a larvae expression system. The recombinant fusion protein is then purified from the larvae by an affinity tag fused to the protein via affinity chromatography.

Abstract: A method of treating cystic fibrosis by generating cystic fibrosis transmembrane conductance regulator (CFTR) function in cells containing mutant CFTR and the therapeutic composition for treatment are described. The method of treatment comprising administering an effective amount of genistein, or genistein analogues and derivatives, to a person afflicted with cystic fibrosis.

Abstract: Peptides derived from mutant CFTR protein which inhibit intracellular degradation and/or retention of mutant CFTR proteins are disclosed. A method of inhibiting intracellular degradation and/or retention of mutant CFTR protein by administering peptides having an amino acid sequence corresponding to mutant CFTR amino acid sequences is also disclosed. Further, a method of preventing cellular retention and degradation of an otherwise membrane bound protein by competitively inhibiting intracellular degradation (proteolysis) and retention which would otherwise retain or degrade synthesized mutant proteins prior to arrival of the protein at the cell surface is disclosed.