passages.id: split_1_test_161_passage
passages.type: progene_text
passages.text: Transfection of reporter luciferase gene constructs containing serial deletions of the 5' flanking region of the rat P450c17 gene showed that DNA between - 98 and + 13 mediated basal and cAMP - regulated transcription in placental JEG-3 cells , as it did in adrenal and Leydig cells .