title: Transcription of BK virus DNA by Escherichia coli RNA polymerase: size and sequence analysis of RNA.
abstract: Transcription of human papovarirus BK superhelical DNA by Escherichia coli RNA polymerase yielded symmetric RNA with an average chain length of 1,3000 nucleotides.  All regions of human papovavirus BK DNA were equally transcribed.  At least four initiation sites were available to the procaryotic enzyme.
mesh_terms: D001739:BK Virus / Q000378:metabolism*; D001483:Base Sequence; D004278:DNA, Superhelical / Q000378:metabolism*; D004279:DNA, Viral / Q000378:metabolism*; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism*; D004926:Escherichia coli / Q000201:enzymology; D008970:Molecular Weight; D009690:Nucleic Acid Conformation; D011120:Polyomavirus / Q000378:metabolism*; D012367:RNA, Viral / Q000096:biosynthesis*; D013539:Simian virus 40 / Q000378:metabolism; D014158:Transcription, Genetic
chemical_list: D004278:DNA, Superhelical; D004279:DNA, Viral; D012367:RNA, Viral; D012321:DNA-Directed RNA Polymerases