The TRE-MET transgene was designed with the human MET (met proto-oncogene (hepatocyte growth factor receptor)) coding sequence, under the control of heptamerized tetracycline operator (tetO; also called tetracycline-responsive element (TRE) or tet-operator) sequences and a cytomegalovirus (hCMV) minimal promoter with a beta-globin poly A signal. Founder line 23 was subsequently established. (J:69731)