转录后加工转录后的加工(posttranscriptionalmodification)第十三章转录后加工 转录后的加工（posttranscriptionalmodification）（1）减少部分片段：如切除5′端前导序列，3′端拖尾序列和中部的内含子；（2）增加部分片段：5′加帽，3′加poly(A)，归巢和通过编辑加入一些碱基；（3）修饰：对某些碱基进行甲基化等。转录...
Post-transcriptional modification is a process in cell biology by which, in eukaryotic cells, primary transcript RNA is converted into mature RNA. A notable example is the conversion of precursor messenger RNA into mature messenger RNA (mRNA), which includes splicing and occurs prior to protein ...
Posttranscriptionalmodification 系统标签: modificationrrnatrnarna间隔区genes RNAPosttranscriptional Procession 转录后加工 ClassesofRNA •Pre-RNA,前体RNA:Theprimarytranscripthasthesame organizationasthegene •hnRNA,heterogeneousnuclearRNA,核内不均一RNA:Eucaryotic RNAPolIItranscribesavarietyofdifferentgenes •snR...
Posttranscriptional modification in tRNA is known to play a multiplicity of functional roles, including maintenance of tertiary structure and cellular adaptation to environmental factors such as temperature. Nucleoside modification has been studied in unfractionated tRNA from three psychrophilic bacteria (ANT-...
post-transcriptional modification名词解释1.转录2.不对称转录3.模板链4.编码链5.启动子6.断裂基因7.外显子8.内含子9.剪接体1
posttranscriptionalmodification网络后的加工 网络释义 1. 后的加工 转录后的加工(posttranscriptionalmodification)是指将各种前体RNA分子加工成成熟的各种RNA。 顺反子:与多肽链相对应 …www.xiangya.cc|基于1 个网页© 2024 Microsoft 隐私声明和 Cookie 法律声明 广告 帮助 反馈...
Learning Outcomes Describe RNA post-transcriptional modification and its purpose Gene expression can be regulated at various stages after an RNA transcript has been produced. Some transcripts can undergoalternative splicing. This regulated process makes different mRNAs and proteins from the same initial RNA...
Two new studies advance understanding of this RNA modification. One shows that m6A modification of nascent messenger RNA promotes transcription by recruiting the histone H3 K9 demethylase KDM3B. Another study identifies genetic variants that affect m6A deposition and human disease....
Transcriptional regulation by Polycomb group proteins. Nat Struct Mol Biol. 2013;20:1147–55. Article PubMed Google Scholar Cesana M, Cacchiarelli D, Legnini I, Santini T, Sthandier O, Chinappi M, et al. A long noncoding RNA controls muscle differentiation by functioning as a competing ...
This post- transcriptional modification prevents binding of the macrolides to the ribosome and renders cells resistant to very high concentrations of these drugs. The same modification confers resistance to two other classes of antibiotics, lincosamides and streptogramins B, whose binding sites in ...