title: A high-efficiency HeLa cell nuclear transcription extract.
abstract: A HeLa cell nuclear transcription extract that is approximately 20 times more efficient than standard HeLa cell transcription extracts was developed. Transcription of the strong adenovirus II major late promoter by this extract results in the synthesis of 1.5-4 molecules of product RNA per molecule of template, indicating that the extract is capable of multiple rounds of initiation. Standard HeLa cell nuclear extracts transcribe closed circular and linear adenovirus major late promoter templates with equal efficiency. In contrast, the new extract exhibits an increase of approximately twofold on transcription of a closed circular, as opposed to a linear, major late promoter template.
authors.affiliation: Department of Biochemistry, University of Illinois, Urbana 61801.
authors.forename: D J
authors.initials: DJ
authors.lastname: Shapiro
authors.forename: P A
authors.initials: PA
authors.lastname: Sharp
authors.forename: W W
authors.initials: WW
authors.lastname: Wahli
authors.forename: M J
authors.initials: MJ
authors.lastname: Keller
mesh_terms: D000256:Adenoviridae / Q000235:genetics; D000818:Animals; D002467:Cell Nucleus / Q000378:metabolism; D002474:Cell-Free System; D006367:HeLa Cells / Q000378:metabolism*; D006801:Humans; D011401:Promoter Regions, Genetic; D014158:Transcription, Genetic; D014819:Vitellogenins / Q000235:genetics; D014981:Xenopus / Q000235:genetics
chemical_list: D014819:Vitellogenins