【1】DNA or deoxyribonucleic acid is the molecule that codes genetic information. However, DNA can't directly order a cell to make proteins. It has to be transcribed into RNA orribonucleic acid. RNA, in turn, is translated bycell...
生物信息的传递-Transcription——从DNA到RNA精选全文完整版
•rRNA(ribosomalRNA）：直接参与核糖体中蛋白质的合成。Contents ●基本概念●转录起始：RNA聚合酶、启动子●转录的基本过程●转录后加工●原核生物与真核生物mRNA的特征比较●RNA合成与DNA合成异同点 思考题？一、基本概念与基本特征 转录(transcription)：基因转录是在细胞核内进行的。它是指以DNA的一条链为模板...
以DNA为模板,在RNA聚合酶作用下合成RNA的过程 promoter启动子(promoter): 与基因转录启动有关的特定保守序列;启动子本身不被转录 transcription factor反式作用因子 又称调节蛋白(DNA结合蛋白DBP,或转录因子TF) 基本转录因子:是RNA聚合酶结合启动子所必需的一组蛋白因子,决定三种RNA(mRNA、tRNA及rRNA)转录的类别。 特...
transcription. Several factors affect the openness of chromatin, and therefore regulate availability of the DNA to transcription factors and RNA polymerases. There are two types of chromatin:euchromatinandheterochromatin.Euchromatinrefers to loosely packaged DNA, where RNA polymerases can freely bind to ...
百度试题 题目Reverse transcription (逆转录):以RNA 为模板合成DNA,由逆转录酶催化。相关知识点: 试题来源: 解析 正确 反馈 收藏
Transfer RNA • Transfers amino acids to the ribosome to make protein Transcription: Getting the message out of the nucleus • Transcription = enzymes make RNA by copying a portion of DNA in the nucleus • If a DNA sequence is AATCCGGA, what is the complimentary RNA sequence? • UU...
百度试题 题目逆转录(reverse transcription):以RNA为模板合成DNA的过程。相关知识点: 试题来源: 解析 正确 反馈 收藏
DNA damage-induced transcription stress triggers the genome-wide degradation of promoter-bound Pol II DNA damage inhibits elongating RNA polymerase II, but also initiates genome-wide transcriptional responses. Here the authors reveal that particularly promoter-bound Pol II is degraded upon DNA damage in...
在本期杂志的第1362页上,Gokhale等人的研究报告指出,细胞中的mRNA可以直接调控蛋白质复合物的组装,从而对免疫刺激性RNA产生转录反应。RIG-I和MDA5是一类名为RLRs的RNA解旋酶,它们在细胞质中对免疫刺激性RNA(例如病毒RNA)做出核心反应...