Evidence for RNA linked to nascent DNA in HeLa cells

Rapidly labeled, i.e., nascent, DNA from HeLa cells was separated from the bulk DNA by ultracentrifugation. Further characterization of the rapidly labeled component revealed that its sedimentation coefficient is in the range of 4S and that it exists in a single- and double- stranded conformation. M...

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Detalles Bibliográficos
Formato: Texto
Lenguaje:English
Publicado: The Rockefeller University Press 1976
Materias:
Articles
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2109661/
https://www.ncbi.nlm.nih.gov/pubmed/1030704
Descripción
Sumario:Rapidly labeled, i.e., nascent, DNA from HeLa cells was separated from the bulk DNA by ultracentrifugation. Further characterization of the rapidly labeled component revealed that its sedimentation coefficient is in the range of 4S and that it exists in a single- and double- stranded conformation. Moreover, analysis by nitrocellulose chromatography and CsSO4 density sedimentation of the nascent DNA labeled with 3H-uridine revealed that it is covalently linked to short chains of RNA, indicating that in HeLa cells RNA primer is involved in DNA replication.

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