5'.A T G G C C T GG A C T T C A.3 Sense strand 3 .T A C CG G A CC T G AA G T.5,Antisensestrand Transcription of antisense strand 5'.A U GG CC U GG A C UU C A.3'mRNA Translation of mRNA iet=Ala✉Trp=Thr=Ser Peptide 2025/5/15
2025/5/15 11 Antisense strand Sense strand
二、Structure&Types of RNA RNA的结构和种类： 1.与DNA相比，RNA结构有以下4个特征： 1)The sugar is ribose rather than deoxyribose 戊糖组分是核糖，而非脱氧核糖； 2)It contains the base uracil instead of the thymine 4种喊基组分中有尿嘧啶U,没有胸腺嘧啶T: 3)RNA is single-stranded,but can fold up into a variety of shapes.以单链形式存在，但约一半序 列通过自身回折形成局部双链和双螺旋结构； 2 nRare/modified bases.含稀有（修饰）碱基较多？
2025/5/15 12 二、Structure & Types of RNA RNA的结构和种类： 1. 与DNA相比，RNA结构有以下4个特征： 1) The sugar is ribose rather than deoxyribose 戊糖组分是核糖，而非脱氧核糖； 2) It contains the base uracil instead of the thymine 4种碱基组分中有尿嘧啶U，没有胸腺嘧啶T； 3) RNA is single-stranded, but can fold up into a variety of shapes. 以单链形式存在，但约一半序 列通过自身回折形成局部双链和双螺旋结构； 4) Rare/modified bases.含稀有（修饰）碱基较多
Deoxy-ATP ATP (deoxyadenosine Adenine (adenosine Adenine triphosphate) NH2 triphosphate) NH> Phosphate groups Phosphate groups 0 CH2 Deoxy- 0- HH H ribose ribose HO sugar HO OH sugar The structure of dATP and ATP 2025/5/15 13
2025/5/15 13 OH The structure of dATP and ATP
TCG's UCG's Cytosine C C Cytosine DNA RNA Nitrogenous Nitrogenous Bases Deoxyribonucleic acid Ribonucleic acid Bases 2025/5/15 Image adapted from:National Human Genome Research Institute 14
2025/5/15 14
AUAUAUUGAA- GAUAUA G4G 827 nucs Saccharomyces cerevisiae [Mitochondrion]LSUrRNA GenBank#X00149 Eucarya,Fungi,Ascomycota (IA1) n08,1994 2025/5/15 15
2025/5/15 15