Abstract
The effect of unlabeled cellular DNA upon the reassociation kinetics of labeled double-stranded DNA made by DNA polymerase from avian tumor viruses has been used to measure virus-specific nucleotide sequences in cells. Multiple copies of these sequences were found equally in normal chick cells, in chick cells transformed in culture, and in Rous tumor cells. Copies were also present equally in cells harboring chick helper factor and group-specific antigen, and in cells lacking those characteristics. Quail DNA also contains multiple copies of these sequences, but no copies were detected in HeLa-cell DNA or salmon-sperm DNA.
MeSH Terms
Animals
Antigens, Viral
Avian Sarcoma Viruses/metabolism
Base Sequence
Cells, Cultured
Chick Embryo
Chickens
DNA Nucleotidyltransferases/metabolism
DNA Replication
DNA, Viral/biosynthesis,metabolism
Diploidy
Genetic Code
In Vitro Techniques
Phosphorus Isotopes
Poultry
RNA, Viral/metabolism
Sarcoma, Avian/enzymology,metabolism
Virus Replication
Chemicals
Antigens, Viral
DNA, Viral
Phosphorus Isotopes
RNA, Viral
DNA Nucleotidyltransferases
Authors & Affiliations
5 authors, click to expand affiliations / ORCID
Varmus H E
Weiss R A
Friis R R
Levinson W
Bishop J M
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