Abstract: The invention provides a method for encapsulating a protein of interest, the method comprising the step of expressing a fusion protein comprising an N-terminal region of a rearrangement hot spot (RHS)-repeat-containing protein fused to the protein of interest. The invention further provides applications for the encapsulation, release and delivery of the protein of interest. The invention also encompasses the encapsulated protein of interest and compositions comprising the encapsulated protein of interest. The invention also provides uses of the encapsulated protein of interest, optionally after release from encapsulation, to control pests. The encapsulated protein of interest may for example be produced via expression in a plant to control a pest of the plant, such as an insect pest.

Abstract: Isolated polynucleotides encoding polypeptides expressed in bovine mammary gland tissue are provided, together with genetic constructs and host cells comprising such isolated polynucleotides. Methods for the use of such polynucleotides and polypeptides are also provided.