【答案】：序列特异性的RNA降解现象，是抵抗病毒侵染的一种反应。在植物中，由转染的DNA触发转录后基因沉默，称RNA共抑制(co-suppressic)n)；在真菌中，称RNA压制；在动物中，称RNA干扰。
Post-transcriptional gene silencing (PTGS)-mediated gene silencing exploits the cellular mechanism wherein transcripts having sequence similarity to the double-stranded RNA (dsRNA) molecules present in the cell will be subjected to degradation. PTGS is closely related to natural processes such as RNA-...
PTGS 转录后基因沉默(post transcriptional gene silencing)一种首先在植物中确定,然后发现在动物中也存在的现象。尽管P…www.bioon.com|基于7个网页 2. 基因后转录的沈默作用 ...体内协助控制基因表现的一套系统,在早期研究中被称为基因后转录的沈默作用 (post transcriptional gene silencing),目前在 …case.ntu....
Post-transcriptional gene silencing (PTGS) in plants is an RNA-degradation mechanism that shows similarities to RNA interference (RNAi) in animals. Indeed, both involve double-stranded RNA (dsRNA), spread within the organism from a localised initiating area, correlate with the accumulation of small...
1) post-transcriptional gene silencing (PTGS) 基因转录后沉默 2) gene 基因 1. Study of the Preparation and the Characteristics of pRc/CMV-BChE Gene-chitosan nanoparticles ①; 丁酰胆碱酯酶基因-壳聚糖纳米粒初步研究 2. Correlation between traditional Chinese medicine syndromes in primary immunoglobulin ...
3) Post-transcriptional gene silencing 转录后基因沉默 1. RNA interference(RNAi) refers to the process where by double-stranded RNA(dsRNA) induces sequence-specific post-transcriptional gene silencing(PTGS). RNA干扰(RNA i)是由双链RNA(doub le-stranded RNA,dsRNA)介导的、序列特异的转录后基因沉默...
of RNA viruses produce dsRNA intermediates, and they serve as inducers of post-transcriptional gene silencing (PTGS). Infection by DNA viruses also induces RNA-directed DNA methylation (RdDM), which is involved in modification of DNA and/or histones, result in transcriptional gene silencing (TGS)...
Transgenic clone C5 was highly resistant to PPV during four years of testing and displayed characteristics typical of post-transcriptional gene silencing (PTGS), including a high level of transgene transcription in the nucleus, low levels of transgene mRNA in the cytoplasm, a complex multicopy ...
But, recent research has evidently brought out the indispensible contribution of non-coding RNA in controlling and regulating gene expression. ncRNA such as siRNAs and microRNAs have been reported to greatly help in causing post-transcriptional gene silencing (PTGS) in cells through RNA interference (...
Post-transcriptional gene silencing (PTGS) involving small interfering RNA (siRNA)-directed degradation of RNA transcripts and transcriptional silencing vi... N Tony,B Laura,A Gianluca,... - 《Nucleic Acids Research》 被引量: 238发表: 2005年 Post-transcriptional gene regulation by HuR promotes a...