passages.id: split_8_test_264_passage
passages.type: progene_text
passages.text: To confirm these conclusions rat hepatocytes were transfected with simian virus 40 ( SV40 ) - promoter - driven LUC - gene constructs containing three CRE1 sequences (-95 / - 84 ) , three CRE2 sequences (-148 / - 137 ) or three CRE1 sequences plus two CRE2 sequences of the PCK1 gene in front of the SV40 promoter .