title: Pyrimidine clusters on the transcribing strand of DNA and their possible role in the initiation of RNA synthesis.
mesh_terms: D001412:Bacillus subtilis / Q000032:analysis; D002499:Centrifugation, Density Gradient; D055598:Chemical Phenomena; D002621:Chemistry; D003090:Coliphages / Q000032:analysis; D003597:Cytosine Nucleotides / Q000032:analysis*; D004247:DNA; D005796:Genes; D008962:Models, Theoretical; D009691:Nucleic Acid Denaturation; D009713:Nucleotidyltransferases; D011743:Pyrimidines / Q000032:analysis*; D012333:RNA, Messenger / Q000096:biosynthesis*
chemical_list: D003597:Cytosine Nucleotides; D011743:Pyrimidines; D012333:RNA, Messenger; D004247:DNA; D009713:Nucleotidyltransferases