翻訳と辞書 Words near each other ・ RNA silencing ・ RNA spike-in ・ RNA splicing ・ RNA thermometer ・ RNA Tie Club ・ RNA transfection ・ RNA triphosphatase ・ RNA uridylyltransferase ・ RNA virus ・ RNA world ・ RNA-3'-phosphate cyclase ・ RNA-based evolution ・ RNA-binding protein ・ RNA-binding protein database ・ RNA-dependent RNA polymerase ・ RNA-Directed DNA Methylation ・ RNA-induced silencing complex ・ RNA-induced transcriptional silencing ・ RNA-OUT ・ RNA-Seq ・ RNA22 ・ RNAD Broughton Moor ・ RNAD Coulport ・ RNAD Trecwn ・ RNAF ・ RNAI ・ RNAi Global Initiative ・ RNAi-Based Identification System and interference of Specific Cancer Cells ・ RNAIII ・ RNAL Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク RNA-Directed DNA Methylation ： ウィキペディア英語版 RNA-Directed DNA Methylation RNA-directed DNA methylation (RdDM) is an epigenetic process first discovered in plants (''Wassenegger et al'', 1994, Cell, Vol 76, 567-576). During RdDM, double-stranded RNAs (dsRNAs) are processed to 21-24 nucleotide small interfering RNAs (siRNAs) and guide methylation of homologous DNA loci. In plants dsRNAs may be generated from three sources: * Viral replication intermediates * Products of the endogenous RNA-directed RNA polymerase * Transcribed inverted repeats * Transposable elements Besides RNA molecules, a plethora of proteins are involved in the establishment of RdDM, like Argonautes, DNA methyltransferases, chromatin remodelling complexes and the plant-specific PolIV and PolV. All these act in concert to add a methyl-group at the 5' position of cytosines. In contrast to animals, cytosines at all sequence context (CG, CHG, CHH) may get de novo methylated in plants. ==References== * * * * * 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「RNA-Directed DNA Methylation」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.