Abstract
During late lytic infection of mouse kidney cell cultures polyoma 16S and 19S (late 19S RNA) were isolated by oligo(dT)-cellulose chromatography. Approximately 60-80% of total cytoplasmic polyoma RNA contained tracts of poly(A) which were retained by oligo(dT)-cellulose. Early in lytic infection when viral DNA synthesis and the production of capsid protein are blocked by the addition of 5-fluorodeoxyuridine, approximately 100% of polyoma "early" 19S RNA was quantitatively retained by oligo(dT)-cellulose indicating the presence of poly(A) tracts on most 19S mRNA molecules. In addition, 2 classes polyoma RNA, synthesized after the onset of cellular RNA synthesis under conditions where DNA synthesis is inhibited with 5-fluorodeoxyuridine, were found to contain tracts of poly(A). These species sedimenting at 16S and 19S in aqueous sucrose density gradients were also quantitatively retained by oligo (dT)-cellulose.
MeSH Terms
Cell Line
Cell Transformation, Neoplastic
DNA Replication/drug effects
Floxuridine/pharmacology
Nucleic Acid Hybridization
Poly A/analysis
Polyomavirus
RNA, Messenger/biosynthesis,isolation & purification
RNA, Neoplasm/biosynthesis,isolation & purification
RNA, Viral/biosynthesis,isolation & purification
Chemicals
RNA, Messenger
RNA, Neoplasm
RNA, Viral
Floxuridine
Poly A
Authors & Affiliations
1 authors, click to expand affiliations / ORCID
Rosenthal L J
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