In agreement with this possibility , it has been recently demonstrated that the fur gene of Pasteurella multocida , is positively regulated by the cAMP-CRP complex .
To ascertain whether transcription of other cAMP-CRP-dependent promoters is affected in the fur mutant , the induction of the basal expression of the cAMP-regulated S. typhimurium pepE gene , was analysed .
To ascertain whether transcription of other cAMP-CRP-dependent promoters is affected in the fur mutant , the induction of the E. coli lac operon , was analysed .