| Literature DB >> 724516 |
Abstract
The DNA ligase activity of monkey kidney CV-1 cells has been measured at different stages of culture growth and after different time intervals following ultraviolet irradiation. Results indicate that: - The level of enzyme activity is about twice higher in non synchronous, rapidly dividing cells than in confluent cultures. - UV-irradiation of cells induces a "de novo" synthesis of DNA ligase. - This induction is dose dependent in its extent and kinetics, and may lead to a DNA ligase level in UV-irradiated stationary cultures of the same order as observed in unirradiated exponentially growing cells. - This induction seems to be independent of semiconservative DNA synthesis since it is not affected by fluorodeoxyuridine.Entities:
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Year: 1978 PMID: 724516 PMCID: PMC342751 DOI: 10.1093/nar/5.11.4317
Source DB: PubMed Journal: Nucleic Acids Res ISSN: 0305-1048 Impact factor: 16.971