Title |
Trans-Reactivation: A New Epigenetic Phenomenon Underlying Transcriptional Reactivation of Silenced Genes
|
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Published in |
PLoS Genetics, August 2015
|
DOI | 10.1371/journal.pgen.1005444 |
Pubmed ID | |
Authors |
Maria Cristina Onorati, Walter Arancio, Vincenzo Cavalieri, Antonia M. R. Ingrassia, Giulio Pavesi, Davide F. V. Corona |
Abstract |
In order to study the role played by cellular RNA pools produced by homologous genomic loci in defining the transcriptional state of a silenced gene, we tested the effect of non-functional alleles of the white gene in the presence of a functional copy of white, silenced by heterochromatin. We found that non-functional alleles of white, unable to produce a coding transcript, could reactivate in trans the expression of a wild type copy of the same gene silenced by heterochromatin. This new epigenetic phenomenon of transcriptional trans-reactivation is heritable, relies on the presence of homologous RNA's and is affected by mutations in genes involved in post-transcriptional gene silencing. Our data suggest a general new unexpected level of gene expression control mediated by homologous RNA molecules in the context of heterochromatic genes. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United States | 10 | 48% |
Canada | 2 | 10% |
United Kingdom | 2 | 10% |
France | 2 | 10% |
Unknown | 5 | 24% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 10 | 48% |
Scientists | 10 | 48% |
Practitioners (doctors, other healthcare professionals) | 1 | 5% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 3 | 7% |
United Kingdom | 2 | 5% |
Italy | 1 | 2% |
Mexico | 1 | 2% |
Netherlands | 1 | 2% |
Unknown | 34 | 81% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 14 | 33% |
Researcher | 10 | 24% |
Student > Bachelor | 4 | 10% |
Professor > Associate Professor | 4 | 10% |
Student > Master | 2 | 5% |
Other | 3 | 7% |
Unknown | 5 | 12% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 26 | 62% |
Biochemistry, Genetics and Molecular Biology | 10 | 24% |
Computer Science | 1 | 2% |
Unknown | 5 | 12% |