Detection of viral DNA sequences in adenovirus-transformed cells by in situ hybridization.
Cytological preparations of cells transformed by members of three groups of human adenoviruses, adenovirus 12, 7, and 2, were annealed with radioactive complementary RNA (cRNA) (4 x 10(7) to 4.5 x 10(7) dpm/mug) prepared by copying viral DNA with the Escherichia coli DNA-directed RNA polymerase. These in situ hybridizations detected adenovirus-specific DNA sequences in interphase nuclei when transformed cells were annealed with homologous viral cRNA, but not with heterologous viral cRNA. The highest autoradiographic grain counts were found over adenovirus 7-transformed cell nuclei, next over adenovirus 12-, and the lowest over adenovirus 2-transformed cell nuclei. This is the same order as found by reassociation kinetic measurements (K. Fujinaga and M. Green, unpublished data).
D000256:Adenoviridae / Q000032:analysis*; D000818:Animals; D001345:Autoradiography; D001483:Base Sequence; D002460:Cell Line; D002471:Cell Transformation, Neoplastic; D002474:Cell-Free System; D002999:Clone Cells; D006224:Cricetinae; D004279:DNA, Viral / Q000032:analysis*; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000201:enzymology; D008722:Methods; D009693:Nucleic Acid Hybridization; D012367:RNA, Viral / Q000032:analysis / Q000096:biosynthesis; D051381:Rats; D013698:Templates, Genetic; D014158:Transcription, Genetic; D014316:Tritium; D014500:Uracil Nucleotides / Q000378:metabolism
D004279:DNA, Viral; D012367:RNA, Viral; D014500:Uracil Nucleotides; D014316:Tritium; D012321:DNA-Directed RNA Polymerases