Small RNAs in transcriptional gene silencing and genome defence

被引:580
作者
Moazed, Danesh [1 ,2 ]
机构
[1] Harvard Univ, Sch Med, Howard Hughes Med Inst, Boston, MA 02115 USA
[2] Harvard Univ, Sch Med, Dept Cell Biol, Boston, MA 02115 USA
基金
美国国家卫生研究院;
关键词
DOUBLE-STRANDED-RNA; FISSION YEAST; HISTONE H3; C-ELEGANS; DNA METHYLATION; SIRNA PATHWAY; CAENORHABDITIS-ELEGANS; LYSINE-9; METHYLATION; ARABIDOPSIS-THALIANA; CHROMATIN-STRUCTURE;
D O I
10.1038/nature07756
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Small RNA molecules of about 20 - 30 nucleotides have emerged as powerful regulators of gene expression and genome stability. Studies in fission yeast and multicellular organisms suggest that effector complexes, directed by small RNAs, target nascent chromatin- bound non- coding RNAs and recruit chromatin modifying complexes. Interactions between small RNAs and nascent non- coding transcripts thus reveal a new mechanism for targeting chromatin- modifying complexes to specific chromosome regions and suggest possibilities for how the resultant chromatin states may be inherited during the process of chromosome duplication.
引用
收藏
页码:413 / 420
页数:8
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