The invention relates to canine
immunoglobulin G (IgG) and canine
interleukin-13 receptors (IL-13R) as well as fusion proteins containing canine IgG and / or canine IL-13R. In particular, the present invention discloses
nucleic acid molecules encoding canine IgG, including species-specific regions of the
heavy chain of canine IgG, and canine IL-13R
alpha chain (IL-13Rα) proteins, particularly canine interleuken
receptor alpha 1 (IL-13Rα1) and canine interleuken
receptor alpha 2 (IL-13Rα2) proteins. Also included are canine IgG and IL-13Rα proteins, antibodies having selectivity for such proteins, inhibitors of such proteins and / or
nucleic acid molecules, cells transformed with said
nucleic acid molecules, assays employing such cells, nucleic acids molecules, proteins, antibodies and / or inhibitors, and therapeutic compositions comprising said nucleic acids molecules, proteins, antibodies and / or inhibitors. Also included are kits containing said molecules or chimera thereof, including their use to evaluate and regulate an immune response in an animal.