Abstract
DNA transcripts were prepared from three related viruses of hamster and analyzed by interviral hybridization and by reaction with cellular DNA. A virus (G-HaLV), isolated from a dimethylbenzanthraceneinduced tumor cell in Graffi hamsters, contained nucleic acid sequences highly specific for hamster cell DNA and did not react with mouse cell DNA nor did its transcript show homology (<5%) with mouse or rat viral RNAs. The hamster-specific sarcoma virus, B-34, isolated by Bassin and coworkers from tumors induced by the Harvey strain of murine sarcoma virus, contained mouse-, hamster-, and possibly rat-specific sequences. B-34 transcripts were predominantly mouse-specific. GLOH(-), a lymphomagenic virus derived by dilution beyond the transforming endpoint of a hamster-specific sarcoma virus obtained from tumors induced by the Gross pseudotype of murine sarcoma virus, also contained hamster- and mouse-specific sequences. Only a portion of its hamster sequence (about 50%) was shared with B-34 and G-HaLV viruses. As expected, transcripts of GLOH(-) virus were reactive with mouse and hamster cellular DNA.
MeSH Terms
Animals
Cell Transformation, Neoplastic
Cricetinae
DNA/analysis,biosynthesis
DNA, Single-Stranded/metabolism
DNA, Viral/analysis,biosynthesis
Nucleic Acid Hybridization
Phenotype
RNA, Messenger
RNA, Viral/metabolism
RNA-Directed DNA Polymerase/metabolism
Retroviridae/enzymology,metabolism
Species Specificity
Transcription, Genetic
Tritium
Chemicals
DNA, Single-Stranded
DNA, Viral
RNA, Messenger
RNA, Viral
Tritium
DNA
RNA-Directed DNA Polymerase
Authors & Affiliations
3 authors, click to expand affiliations / ORCID
Okabe H
Gilden R V
Hatanaka M
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