ArticleCurrent genetics2003
Ionizing irradiation effects on S-phase in checkpoint mutants of the yeast Saccharomyces cerevisiae.
Article in Current genetics, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
0 citing papers in PubMed, 4 citations in OpenAlex.
No citing paper in PubMed yet.
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
Abstract
In mammalian cells, gamma-irradiation activates checkpoint controls to delay entry into, or passage through S-phase, while chronic exposure to methyl methanesulfonate or hydroxyurea causes a similar delay in yeast. In yeast, at least five genes are involved: RAD9, RAD17, RAD24, RAD53 and MEC1, a homologue of ATM. Here, using flow cytometry analysis and alkaline sucrose gradient centrifugation of labeled, newly made DNA, we demonstrate, in synchronized RAD wild-type Saccharomyces cerevisiae cells, that: (1) gamma-irradiation at START delays entry into S-phase, (2) irradiation shortly before or during early S-phase delays completion of S-phase and (3) the latter response is largely a consequence of replicon initiation inhibition. The delay produced by irradiation during early S-phase depends on the function of the checkpoint genes RAD9, RAD17, RAD24, RAD53, MEC1 and MEC3. However, at least four, RAD17, RAD53, MEC1, MEC3, are not needed to delay S-phase progression when cells are irradiated shortly before S-phase begins.
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