SCGB3A1 and neoplasm: Six mouse Scgb3a1 gene promoter-luciferase reporter constructs (pGL4, -59, -91, -184, -273, and -598) were then prepared and subjected to transient transfection analysis using transformed mouse Clara cells (mtCC) that are derived from tumor tissues of lungs obtained from transgenic mice expressing the simian virus 40 large T antigen gene under control of uteroglobin/Clara cell secretory protein promoter [13].