| By using a yeast two hybrid screen we identified GIPC ( GAIP interacting protein C terminus ) , a protein with a type 1 PDZ domain as a novel human lutropin receptor ( hLHR ) binding partner . 0.88572642^^^ GIPC binds to the human lutropin receptor ( hLHR ) through an unusual PDZ domain binding motif , and it regulates the sorting of the internalized human choriogonadotropin and the density of cell surface hLHR . 0.60062763^^^ |