passages.id: split_8_test_265_passage
passages.type: progene_text
passages.text: Glucagon induced LUC activity markedly when the CRE1 , but not when the CRE2 , sites were in front of the SV40 - LUC gene ; however , induction of the ( CRE1 ) 3SV40 - LUC constructs was not modulated by the pO2 .