Since promoter elements controlling collagenase transcription in monocytic cells have not been previously defined , we sought to delineate responsive cis-acting elements of the collagenase promoter in transiently transfected human ( U937 ) and murine ( J774 ) monocytic cell lines .
since promoter elements controlling collagenase transcription in monocytic cells have not been previously defined , we sought to delineate responsive cis-acting elements of the collagenase promoter in transiently transfected human ( u937 ) and murine ( j774 ) monocytic cell lines .
O O O O B-protein_molecule O O O O O O O O O O O O O O O B-DNA_family_or_group I-DNA_family_or_group O O B-protein_molecule O O O O O O O O O O O O O O O O O