SGD Paper 
Burrill DR and Silver PA (2011) Synthetic circuit identifies subpopulations with sustained memory of DNA damage. Genes Dev 25(5):434-9
Abstract: Differential responses to stimuli can affect how cells succumb to disease. In yeast, DNA damage can create heterogeneous responses. To delineate how a response contributes to a cell's future behavior, we constructed a transcription-based memory circuit that detects DNA repair to isolate subpopulations with heritable damage responses. Strongly responsive cells show multigenerational effects, including growth defects and iron-associated gene expression. Less-responsive cells exhibit increased mutation frequencies but resume wild-type behavior. These two subpopulations remain distinct for multiple generations, indicating a transmissible memory of damage. Collectively, this work demonstrates the efficacy of using synthetic biology to define how environmental exposure contributes to distinct cell fates.
| Status: Published | Type: Journal Article | PubMed ID: 21363961 |
Topics addressed in this paper
Number of different genes curated to this paper: 7
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