Chapter 2 Structures &functions of nucleic acid &protein Nucleic acids DNA Structures &functions RNA Structures &functions ● Proteins Interaction between biopolymer protein-protein Interaction DNA-protein interaction
Chapter 2 Structures &functions of nucleic acid &protein • Nucleic acids DNA Structures &functions RNA Structures &functions • Proteins • Interaction between biopolymer protein-protein interaction DNA-protein interaction
DNA Structures &functions Primary structure:DNA分子中核苷酸的 排列顺序。 Secondary structure 双螺旋( double helix) 三股螺旋( triple helix) Tertiary structure:超螺旋( supercoil
DNA Structures &functions • Primary structure:DNA分子中核苷酸的 排列顺序。 • Secondary structure: 双螺旋(double helix) 三股螺旋(triple helix) • Tertiary structure:超螺旋(supercoil)
DNA携带的遗传信息 ※有功能活性的DNA序列所携带的遗传信息 replication transcript ion translation ≥RNA Protein reverse transcription ※调控信息:能被各种蛋白质分子特异性 识别和结合
DNA携带的遗传信息 ※有功能活性的DNA序列所携带的遗传信息。 ※调控信息:能被各种蛋白质分子特异性 识别和结合。 replication transcription translation DNA RNA Protein reverse transcrirtion
DNA Secondary Structures &functions 1、双螺旋结构( double helix)
DNA Secondary Structures &functions • 1、双螺旋结构(double helix)
G(CC narrow groove. T