from which molecular structure can be inferred; (2) as a necessary back- ground for, and adjunct to, experimental analysis of molecular function and structure; (3) as the essence of genealogical analysis and classifica- tion; and (4) in providing a general conceptual and organizational frame-...
Structure III. Types of RNA Three types of RNA are used to make proteins mRNA – messenger RNA rRNA – ribosomal RNA tRNA – transfer RNA IV. mRNA Function TRANSCRIPTON A. transcribe DNA code B. take code outside of nucleus to ribosome C. give instructions to ribosome on how to build ...
RNA STRUCTURE 1 RNA STRUCTURE 2 differences RNA vs DNA The base difference (U vs T) is not particularly relevant for structural and functional aspects instead The presence of an -OH group in C2’ (Ribose) instead of H (desoxyribose) as in DNA confers upon the RNA molecules very special ...
3.4 Experiments / 实验研究 The lac operon Constitutive mutant lacI– / 组成型突变体lacI– The lost function was compensated. Constitutive mutant lacOC / 组成型突变体lacOC The lost function was NOT compensated. LacOc functions only on the same DNA fragment Structure of the lac operon 乳糖操纵子...
2whatismicroRNAandithowtocontrolmRNA 3ThefunctionofmicroRNA ThestructureofmRNA Phosphorusacid(磷酸）Ribose(核糖）CGABU（（a(碱s尿胞腺碱鸟ic嘧嘌基g基r啶呤）ou)）p •ribonucleotide(thebaseofmRNA)ThestructureofmRNA A U G C •Riboseconnecteachotherandformthesinglechain Thedifferencebetween...
38、is a multiple-subunit protein and its structure is more complex than those in prokaryotic cell.目录目录3.2 启启动子)动子)转录因子)转录因子)(1 1)the core promoter element of Transcription initiation upstream section The cis-acting elements(顺式作用元件)顺式作用元件)are the specific sequences...
microRNA and target interactionmicroRNA functionNormal physiological functionmiRNA and human diseasesThe ic basis of plexityHumans (and other vertebrates) have approximately the same number of protein-coding genes (~20,000) as C. elegans, and less than those of plants (Arabidopsis ~28,000, rice...
9、ased and the 5-end of the intron forms a three-way junction structure.Figure 13-3Three-way junction 第一步转酯反应第一步转酯反应5外显子是离去基团外显子是离去基团n第二步转酯反应:第二步转酯反应: 5外显子新游离出外显子新游离出来的来的3羟基反过来作为亲核基团攻击羟基反过来作为亲核基团攻...
3 Synthesis and function of miRNA molecules. 4 The Evolution and Exploitation of RNAi. 5 Regulatory RNAs and X-inactivation. 2 PART 1 1. Small RNAs (sRNA): regulation by base pairing. 2. Riboswitches: regulation by metabolitemediated structure changes 3. Attenuation: Regulation by ribosome stop...
1 What is mRNA and its function ? 2 what is microRNA and it how to control mRNA ? 3 The function of microRNA The structure of mRNA Phosphorus acid (磷酸) Ribose (核糖) CGABU((a(碱s尿胞腺碱鸟ic嘧嘌基g基r啶呤)ou))p ? ribonucleotide (the base of mRNA ) The structure of mRNA ...