{"title":"Xist gene regulation at the onset of X inactivation","authors":"Claire E Senner , Neil Brockdorff","doi":"10.1016/j.gde.2009.03.003","DOIUrl":null,"url":null,"abstract":"<div><p>The large non-coding RNA <em>Xist</em><span> is the master regulator of X inactivation. </span><em>Xist</em> is negatively regulated by its antisense transcript <span><em>Tsix</em></span>. This repressive antisense transcription across <em>Xist</em> operates at least in part through the modification of the chromatin environment of the locus. However <em>Tsix</em> is not sufficient to repress <em>Xist</em> in pluripotent cells and there is emerging evidence that transcription factors associated with pluripotency are involved in <em>Tsix</em>-independent repression. This review focuses on recent advances in this area and discusses the implications for our understanding of <em>Xist</em> gene regulation at the onset of X inactivation.</p></div>","PeriodicalId":50606,"journal":{"name":"Current Opinion in Genetics & Development","volume":"19 2","pages":"Pages 122-126"},"PeriodicalIF":3.6000,"publicationDate":"2009-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.gde.2009.03.003","citationCount":"68","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Opinion in Genetics & Development","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0959437X09000537","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CELL BIOLOGY","Score":null,"Total":0}
引用次数: 68
Abstract
The large non-coding RNA Xist is the master regulator of X inactivation. Xist is negatively regulated by its antisense transcript Tsix. This repressive antisense transcription across Xist operates at least in part through the modification of the chromatin environment of the locus. However Tsix is not sufficient to repress Xist in pluripotent cells and there is emerging evidence that transcription factors associated with pluripotency are involved in Tsix-independent repression. This review focuses on recent advances in this area and discusses the implications for our understanding of Xist gene regulation at the onset of X inactivation.
期刊介绍:
Current Opinion in Genetics and Development aims to stimulate scientifically grounded, interdisciplinary, multi-scale debate and exchange of ideas. It contains polished, concise and timely reviews and opinions, with particular emphasis on those articles published in the past two years. In addition to describing recent trends, the authors are encouraged to give their subjective opinion of the topics discussed.
In Current Opinion in Genetics and Development we help the reader by providing in a systematic manner:
1. The views of experts on current advances in their field in a clear and readable form.
2. Evaluations of the most interesting papers, annotated by experts, from the great wealth of original publications.[...]
The subject of Genetics and Development is divided into six themed sections, each of which is reviewed once a year:
• Cancer Genomics
• Genome Architecture and Expression
• Molecular and genetic basis of disease
• Developmental mechanisms, patterning and evolution
• Cell reprogramming, regeneration and repair
• Genetics of Human Origin / Evolutionary genetics (alternate years)