passages.id: split_5_test_2862_passage
passages.type: progene_text
passages.text: Since GATA , T cell factor-1 ( TCF-1 ) , Ets-1 , activated protein2 ( AP-2 ) , and Ikaros2 binding motifs were demonstrated in the 5' upstream region of this gene , promoter activity was investigated using luciferase gene as a reporter .