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THE SYLLABUS OF BIOCHEMISTRY AND MOLECULAR BIOLOGY Applicable Students: Six-year system oversea students in the department of clinical medicine. Class Hours: It takes 138 hours to study this course. The study of theory needs 90 hours, the study of experimental skill needs 48 hours. Course Introduction: Biochemistry and Molecular Biology is a required course for basic Medicine. It can be defined as the science to clarify the phenomenon and the nature of life and to explain the biochemistry problems about normal human and disease processes at the molecular level. Biochemistry and medicine are closely linked. Biochemistry is the basic disciplines which progressed rapidly in the life sciences. Its theory and technology has penetrated into various fields of other basic medicine and clinical medicine, and promote many interdisciplinary emerging, such as molecular genetics, molecular immunology, molecular microbiology, molecular pathology, and molecular pharmacology. Biochemistry and molecular biology plays a role in promoting the development of medicine and has become the common language of the life sciences and frontier disciplines. Biochemistry and Molecular Biology is to study the structure and function of biological macromolecules, metabolism and its regulation, genetic information transfer and its regulation, as well as their role in life activities. With the development of the medicine, lots of wonders are being created, and explosive information is being provided at an unprecedented speed. Biochemistry is a window opening to the world of life science. Thus, the knowledge of biochemistry which involves the study of chemical molecules and reactions in living organisms, and the elucidations of the nature of live phenomenon on the molecular level, is essential to medical students, as well as to the students of other related disciplines. The Basic Objectives It will request students to grasp the basic knowledge of Biochemistry and Molecular Biology, learn to analyze the changes in metabolism and explore the pathogenesis of the disease at molecular level and use biochemical theory and technology to solve problems in various disciplines. Simultaneously, through a variety of teaching and learning activities as much as possible enable students to familiar with the basic experimental techniques in the field of biochemistry, to understand the biochemical disciplines important new development, and to train students’ independent analysis and problem-solving skills. Which would lay a solid foundation for learning subsequent clinical specialties? Teaching Hours Distribution Content Teaching hours Structure and Function of Protein 6 Amino Acids 2 Chapter 2 Peptides 2 Chapter 3 Proteins 2 Nucleotides and Vitamins 1 Nucleotides 1 Enzymes 8 Chapter 8 General Properties of Enzymes 2 Chapter 9 Mechanism of Action of Enzymes and Coenzymes 2 Chapter 10 Kinetics of Enzymatic Reaction 2 Chapter 11 Regulation of Enzyme Activity 2 Part 4 Biological Oxidation 7 Chapter 12 Biological Oxidation 2 Chapter 13 The Respiratory Chain and Oxidative Phosphorylation 2 Chapter 14 Tricarboxylic Acid Cycle 3 Metabolism of Carbohydrates 8 Part 1 Chapter 1 Part 2 Chapter 6 Part 3 Part 5 Chapter 15 Overview of Carbohydrates Metabolism 1 Chapter 16 Glycolysis and Oxidation of Pyruvate 2 Chapter 17 The Pentose Phosphate Pathway 1 Chapter 18 Metabolism of Glycogen 1 Chapter 19 Gluconeogenesis 2 Chapter 20 Control of Blood Glucose 1 Metabolism of Lipid 8 Chapter 22 Overview of Lipids Metabolism 2 Chapter 23 Anabolism of Triacylglycerol 1 Chapter 24 Catabolism of Triacylglycerol 1 Chapter 25 Mebabolism of Phospholips and Sphingolipids 1 Chapter 26 Metabolism of Cholesterol 1 Chapter 27 Transportation and Storage of Lipids 2 Catabolism of Protein 10 Chapter 28 Overview of Catabolism of Protein 2 Chapter 29 Metabolism of Amino Acid Nitrogen 3 Chapter 30 Catabolism of the Carbon Skeletons of Amino Acids 3 Chapter 31 Conversion of Amino Acids to Specialized Products 2 Metabolism of Nucleotides 4 Chapter 32 Metabolism of Purine Nuleotides 2 Chapter 33 Metabolism of Pyrimidine Nucleotides 2 Part 9 Metabolism of Nonnutritive Substances 3 Chapter 34 Biotransformation of Nonnutritive Substances 1 Chapter 35 Metabolism of Porphyrims and Bile Pigments 1 Chapter 36 Bile and Metabolism of Bile Acids 1 Part 10 Regulation of Metabolism Interrelationships of Substance Part 6 Part 7 Part 8 and Metabolic 4 Chapter 37 Overview of Metabolism 1 Chapter 38 Regulation of Substances Metabolism 1 Chapter 39 Metaboic Interrelationships of Nutritive Substance 1 Chapter 40 Substances Metabolism in Different Tissues and Organs 1 Gene and Genome 2 Chapter 41 Structure and function of DNA 1 Chapter 42 Structure and function of RNA Chapter 43 Structure and function of gene Chapter 44 Structure and function of genome Part 11 1 Flow of Genetic Information 20 Chapter 45 DNA Synthesis-Replication of Genomic DNA 3 Chapter 46 DNA Damage and Repairing 1 Chapter 47 RNA Synthesis-Transcription 4 Chapter 48 Protein Synthesis-Translation 4 Chapter 49 Basic Concepts and Principles of Regulation and Control of Gene 2 Chapter 50 Regulation of Gene Expression in Prokaryotes 4 Chapter 51 Regulation of Gene Expression in Eukaryotes 2 Part 13 Cell Communication and Signal Transduction 4 Chapter 52 Molecular Basis of Cell Communication and Signal Transduction 2 Chapter 53 Signal Transduction Pathway 2 Basic Technology in Molecular Biology 3 Genetic Recombination and Genetic Engineering 3 Gene and Disease 2 Chapter 58 Oncogenes and Antioncogenes 1 Chapter 59 Gene Diagnosis 1 Chapter 60 Gene Therapy Part 12 Part 14 Chapter 57 Part 15 Total THEORETICAL PART (90 Hours) 90 PART 1 STRUCTURES AND FUNCTIONS OF PROTEINS [Objectives] 1. Master the nitrogen content of amino acids, peptide bond,motif, chaperone, peptide unit, the classification of amino acids, isoelectric point, the primary, secondary,tertiary and quaternary structure of protein ,denaturation of protein, physicochemical properties of protein 2. Understand structure-function relationships of protein, various forces stabilize protein structure, the role of chaperones in protein folding, the role of chaperones in protein folding [Contents] 1. Amino acids (1) The structure features of amino acids (2) Amino acids are classified according to the characters of their R groups (3) The elements of amino acids, the content of nitrogen is relative constant (16%) (4) Physicochemical properties of amino acids: isoelectric point, amino acid may have different charge, ultraviolet absorption, reaction with ninhydrin (5) The α-group determin the properties of individual amino acids 2. Peptides (1) L-amino acids linked by peptide bonds form peptides : peptide, oligopeptide, polypeptide and polypeptide chain, peptide bond (2) Properties of peptides: glutathione, peptides are polyelectrolytes, pH and pK determine net charge on peptides 3. Proteins (1) The classification of proteins: simple proteins and conjugated proteins, globular proteins and fibrous proteins (2) Primary structure of protein (3) Secondary structure of proteins: alpha-helix, the beta sheet, loops and bends,random coil (4) Tertiary structure of proteins :super-secondary structure, motif, domain (5) Various forces stabilize protein structure: salt bridges, hydrophobic interaction link, hydrogen bond, van der waals force, disulfied bonds (6) The role of chaperones in protein folding (7) Quaternary structure of protein (8) Denaturation of proteins: denaturation, renaturation (9) Physicochemical properties of protein: proteins have different charge, proteins are colloid molecules, ultraviolet absorption, color reaction PART 2 NUCLEOTIDES AND VITAMINS [Objectives] 1. Master the elemental and molecular components of nucleic acid, the function of nucleic acids; nucleic acids contain five major heterocyclic bases and rare bases. 2. Understand the numbering systems, purines and pyrimidines are planar molecules, [Contents] Nucleotides: (1) General introduction of nucleic acids and nucleotides: there are two nucleic acids:DNA and RNA, the elemental and molecular components of nucleic acid, the function of nucleic acids. (2) Chemistry of purines and pyrimidines : they are heterocyclic compounds, the numbering systems, purines and pyrimidines are planar molecules, nucleic acids contain five major heterocyclic bases and rare bases. (3) Nucleosides and nucleotides: nucleosides contain monosaccharides, nucleotides are phosphorylated nucleosides, some important nucleotides PART 3 ENZYMES [Objectives] 1. Master characteristics of enzymatic reactions, moleculare constituents of enzyme , isoenzyme, influences of substrate concentration, enzyme concentration, temperature, pH, inhibitors, activators on the activity of enzymes, regulation of the activity of enzymes 2. Understand nomenclature of enzyme、 classification of the enzyme,mechanism of action of enzymes. [Contents] 1. General properties of Enzymes: (1) Enzyme are efficient biocatalysts : the conception of enzyme, ribozyme (2) Enzyme are of important biological significances (3) Characteristics of enzymatic reactions: highly efficient, high specificity, the regulation of the enzyme (4) Moleculare constituents of enzyme : simple enzyme and conjugated enzyme, the conception of holoenzyme、apoenzyme 、prosthetic groups (5) Nomenclature of enzyme : customary and systematic nomenclature of enzyme (6) Enzymes are classified by the reactions they catalyze (7) Isoenzyme are distinct forms of enzyme with the same catalytic activity : the conception of the isoenzyme 2. Mechanism of action of enzymes and coenzymes (1) Why a chemical reaction can take place (2) Enzymes speed up the rates by lowering the activation energy without influencing the equilibrium of a reaction (3) Enzyme binds substrate and catalyzes the conversion of substrate to product (4) Enzymes catalyze the reactions through different mechanisms : chemical catalysis, general acid-base catalysis, covalent catalysis, metal ion catalysis, catalysis by strain (5) The function of coenzymes, prosthetic group and cofactors : cofactor contain : B vitamins , TPP, FMN, FAD ,NAD+, NADP+, CoA, THF, acyle group. 3. Kinetics of enzymatic reactions (1) How to measure the activity of enzymes (2) What is the kinetics of enzymatic reaction (3) Substrate concentration influences the rate of enzymatic reactions: michaelis equation, Km and Vmax. (4) Enzyme concentration influences the rate of enzymatic reactions (5) Temperature influences the rate of enzymatic reactions : optimum temperature (6) pH value influences the rate of enzymatic reactions: pH optimum (7) Influences of inhibitors on the activity of enzymes: irreversible inhibition of enzyme activity, reversible inhibition, competitive inhibiton, non-competitive inhibition, uncompetitive inhibition. (8) Influences of activators on the activity of enzymes 4. Regulation of enzyme activity (1) Key enzyme (2) Regulation of the activity of enzymes (3) The quantity of enzyme is modulated by regulating the rate of synthesis and /or degradation PART 4 BIOLOGICAL OXIDATION [Objectives] 1. Master the components of the respiratory chain : complex Ⅰ、Ⅱ、Ⅲ、Ⅳ, two respiratory chains: NADH respiratory chain and FADH2 respiratory chain, the inhibition of the respiratory malate-aspartate shuttle, chain, α-glycerophosphate shuttle and TAC consists of eight reactions, the regulation of the TAC, the key enzymes of the TAC : citrate synthase, isocitrate dehydrogenase andα-ketoglutarate dehydrogenase, physiological significance of TAC 2. Understand biomedial importance of biological oxidation, oxidases use oxygen as a hydrogen acceptor, hydroperoxidases use hydrogen peroxide or anorganic peroxide as substrate, oxigenases catalyze the direct transfer and incorporation of oxygen into a substrate molecule, superoxide dismutase protects aerobic organisms against oxygen toxicity [Contents] 1. Biological oxidation (1) Biomedial importance of biological oxidation (2) Oxidases use oxygen as a hydrogen acceptor (3) Hydroperoxidases use hydrogen peroxide or anorganic peroxide as substrate (4) Oxigenases catalyze the direct transfer and incorporation of oxygen into a substrate molecule (5) Superoxide dismutase protects aerobic organisms against oxygen toxicity 2. The respiratory chain and oxidative phosphorylation (1) Storage and utilization of energy in vivo (2) The respiratory chain collects and oxidizes reducing equivalents: the components of the respiratory chain ,complex Ⅰ、Ⅱ、Ⅲ、Ⅳ. (3) There are two respiratory chains: NADH respiratory chain and FADH2 respiratory chain (4) The respiratory chain provides most of the energy captured in metabolism (5) The chemiosmotic theory explains the mechanism of oxidative phosphorylation (6) Many poisons inhibit the respiratory chain: H2S, carbon monoxide, cyanide,oligomycin uncouplers (7) The relative impermeability of the inner mitochondrial membrane necessitates exchange transporters: α-glycerophosphate shuttle and malate-aspartate shuttle. 3. Tricarboxylic acid cycle (1) The tricarboxylic acid cycle is an important stage for cellular respiration (2) The tricarboxylic acid cycle consists of eight reactions (3) TAC is regulated by the regulation of the activity of key enzymes:citrate synthase, isocitrate dehydrogenase andα-ketoglutarate dehydrogenase (4) Physiological significance of TAC PART 5 METABOLISM OF CARBOHYDRATES [Objectives] 1. Master the reactions and enzymes in clycolysis, regulation of glycolysis, physiologic significance of glycolysis, and production of ATP from catabolism of glucose, glycogenesis and glycogenolysis pathway, gluconeogenesis pathway, control of the blood glucose by hormones: insulin and glucagon. 2. Understand oview of carbohydrates metabolism, classification of carbohydrates, and physiologic significance of carbohydrates, digestion and absorption of carbohydrates, the pentose phosphate pathway, physiological significance of stable level of blood glucose, carbohydrate metabolism in mature red blood cell. [Contents] 1. Overview of carbohydrates metabolism (1) Carbohydrates are aldehyde or ketone derivatives of polyhydric alcohols (2) There are four main classes of carbohydrates: monosaccharides , oligosaccharides, polysaccharides, glycoconjugates (3) Physiologic significance of carbohydrates: major source of energy, provide materials for synthesis of other substance, serve as the structural components. (4) Digestion and absorption of carbohydrates (5) Main metabolic pathways of carbohydrate metabolism 2. Glycolysis and the oxidation of pyruvate (1) Glycolysis can function under anaerobic condition (2) Reactions and enzymes in clycolysis: two stages: the glycolytic pathway and the reduction of pyruvate . (3) Regulation of glycolysis : phosphofructokinase-1, hexokinase and pyruvate kinase are the key enzyme (4) Physiologic significance of glycolysis (5) The oxidation of pyruvate to acetyl-CoA is the irreversible rout from glycolysis toTAC (6) Production of ATP from catabolism of glucose 3. The pentose phosphate pathway (1) Characteristics of pentose phosphate pathway (2) The reaction of the pathway may be divided into two phases (3) Regulation of pentose phosphate pathway (4) Physiologic significance of the pathway 4. Metabolism of Glycogen (1) Glycogen (2) Glycogenesis occurs mainly in liver and muscle (3) Glycogenesis pathway: four basic reaction (4) Glycogenolysis is not the reverse of glycogenesis but is a separete pathway (5) Regulation of glycogenolysis and glycogenesis 5. Gluconeogenesis (6) Gluconeogenesis pathway (1) Glycolysis and gluconeogenesis were regulated reciprocally (2) Physical significance of gluconeogenesis 6. Control of the blood glucose (1) The concentration of blood glucose is regulated within narrow limits (2) Physiological significance of stable level of blood glucose (3) Blood glucose is derived from the diet, gluconeogenesis , and glycogenolysis (4) Control of the blood glucose by hormones: insulin and glucagon 7. Carbohydrate metabolism in mature red blood cell (1) The red blood cells has a unique and relatively simple metabolism (2) The glucose transporter in red blood cell membrane (3) Metabolic pathway of glucose in red blood cells (4) The function of ATP in red blood cells (5) The function of 2,3-BPG in red blood cells (6) The function of NADPH and NADH (7) Deficiency of G-6-P dehydrogenase may cause hemolytic anemia PART 6 METABOLISM OF LIPID [Objectives] 1. Master lipogenesis: de novo synthesis of fatty acids , biosynthesis of triacylglycerol, essential fatty acids , oxidation of fatty acids, ketogenesis, synthesis of cholesterol ,conversion of cholesterol 2. Understand overview of lipid metabolism, eicosanoids are formed from C20 polyunsaturated fatty acids, synthesis of unsaturated fatty acids, metabolism of phospholipids an sphingolipids, regulation of cholesterol synthesis , transportation and storage of lipids. [Contents] 1. Overview of Lipid Metabolism (1) Physiological importance of lipids (2) Lipids are classified as simple or complex (3) Fatty acids are aliphatic carboxylic acids (4) Triacylglycerols are the main storage forms of fatty acids (5) Phospholipids are the main lipid constituents of membranes (6) Steroids play many physiological importance roles (7) Digestion and absorption of lipids (8) Lipids are metabolized in different ways in vivo (9) Lipids metabolism in mature red blood cells 2. Anabolism of Triacylglycerol (1) Lipogenesis : de novo synthesis of fatty acids (2) Synthesis of unsaturated fatty acids (3) Regulation of lipogenesis (4) Biosynthesis of triacylglycerol (5) Essential fatty acids (6) Eicosanoids are formed from C20 polyunsaturated fatty acids 3. Catabolism of Triacylglycerol (1) Catabolism of acylglycerols is not the reversal of biosynthesis of fat (2) Oxidation of fatty acids occurs in mitochondria (3) Oxidation of some fatty acids (4) Ketogenesis (5) Ketogenesis is regulated at three crucial steps 4. Metabolism of Phospholipids and Sphingolipids (1) Biosynthesis of phospholipids (2) Phospholipases allow degradation and remodeling of phosphoglycerides (3) All sphingolipids are formed from ceramide 5. Metabolism of Cholesterol (1) Biomedical importance of cholesterol (2) Cholesterol is derived about equally from the diet and from biosynthesis (3) Synthesis of cholesterol (4) Regulation of cholesterol synthesis (5) Conversion of cholesterol 6. Transportation and Storage of Lipids (1) Lipids are transported in the plasma as lipoproteins (2) Free fatty acids are rapidly metabolized (3) Triacylglycerol is transported in chylomicrons from the intestines (4) Triacylglycerol is transported in VLDL from the liver (5) CM and VLDL are rapidly catabolized (6) LDL is metabolized via the LDL receptor (7) HDL takes part in metabolism of both triacylglycerol and cholesterol in lipoproteins (8) Abnormal metabolism of plasma lipoproteins PART 7: CATABOLISM OF PROTEINS [Objectives] 1. Master Transamination, Oxidative deamination of L-glutamate , Combined deamination, Glutamine synthetase, Biosynthesis of urea, α-keto acids can be converted into nonessential amino acids and to substrates for carbohydrate and lipid biosynthesis, Catabolism of sulfur-contanining amino acids、aromatic amino acids 、branched-chain amino acids 2. Understand overviwe of catabolism of proteins,Conversion of amino acids to specialized products. [Contents] 1. Overviwe of Catabolism of Proteins (1) Importance of protein nutrition (2) Digestion of proteins from food (3) Absorption of digested products (4) Putrefaction of proteins in the large intestine (5) Protein turnover occurs in all froms of life (6) Degradation of proteins in vivo (7) Metabolic pathways of amino acids 2. Metabolism of Amino Acid Nitrogen (1) Transamination (2) Oxidative deamination of L-glutamate (3) Combined deamination (4) Ammonia intoxication is life-threatening (5) Glutamine synthetase fixes ammonia as glutamine (6) Urea is the major end products of nitrogen catabolism in humans (7) Biosynthesis of urea (8) Carbamoyl phosphate synthaseⅠ is the pacemaker enzyme of the urea cycle (9) Genetic defects in the cycle can be life-threatening 3. Catabolism of the Carbon Skeleton of Amino Acids (1) α-keto acids can be converted into nonessential amino acids by amination (2) α-keto acids are catabolized to substrates for carbohydrate and lipid biosynthesis (3) Catabolism of sulfur-contanining amino acids (4) Catabolism of aromatic amino acids (5) Catabolism of branched-chain amino acids 4. Conversion of Amino Acids to Specialized Products (1) Many physiological substrances can be produced from amino acids (2) Metabolism of one-carbon unit PART 8: CATABOLISM OF NUCLEOTIDES [Objectives] 1. Master de novo synthesis 、 salvage synthesis pathway of purine and pyrimidine nucleotides, antimetabolites of purine and pyrimidine nucleotides, catabolism of purine and pyrimidine nucleotides, 2. Understand Nucleotides are of physiological importance but dietarily nonessential,interconversion of purine nucleotides , reduction of NDPs forms dNDPs,The synthesisi of purine and pyrimidine nucleotide are regulated. [Contents] 1. Metabolism of Purine Nucleotides (1) Nucleotides are of physiological importance but dietarily nonessential (2) De novo synthesis of purine nucleotides in vivo (3) The synthesisi of purine nucleotide is stringently regulated (4) “Salvage” reactions convert purines and their nucleosides to mononucleotides (5) Interconversion of purine nucleotides (6) Reduction of NDPs forms dNDPs (7) Antimetabolites of purine nucleotides (8) Catabolism of purine nucleotides 2. Metabolism of Pyrimidine Nucleotides (1) De novo synthesis of pyrimidine nucleotides (2) Pyrimidine ribo and deoxyribonucleosides are salvaged (3) Antimetabolites of pyrimidine nucleotides (4) Catabolism of pyrimidine nucleotides PART 9: METABOLISM OF NONNUTRITIVE SUBSTANCES [Objectives] 1. Master botransformation of substances by oxidation、reduction 、hydrolysis 、 conjugation reactions, heme is synthesized from succinyl-CoA and glycine, bile acids are formed from cholesterol, entertohepatic circulation 2. Understand various factors affects the activities of the enzymes metabolizing xenobiotics , structure of porphyrins , formation、transportation and metabolism of bilirubin. [Contents] 1. Biotransformation of Nonnutritive Substance (1) Biotransformation (2) Biotransformation of substances by oxidation (3) Biotransformation of substances by reduction (4) Biotransformation of substances by hydrolysis (5) Conjugation reactions prepare the substances for excretion in phase two of their metabolism (6) Various factors affects the activities of the enzymes metabolizing xenobiotics 2. Metabolism of Porphyrins and Bile Pigments (1) Porphyrins and bile pigments (2) Structure of porphyrins (3) Heme is synthesized from succinyl-CoA and glycine (4) Formation and transportation of bilirubin (5) Metabolism of bilirubin (6) Hyperbilirubinemia causes jaundice 3. Bile and Metabolism of Bile Acids (1) Bile (2) Bile acids (3) Bile acids are formed from cholesterol (4) Most bile acids reture to the liver in the entertohepatic circulation Part10: REGULATION OF METABOLISM AND METABOLIC INTERREGULATIONSHIPS OF SUBSTANCE [Objectives] 1. Master the general characteristics of metabolism, allosteric regulation and chemical modification of key enzymes , regulation of the amount of enzyme, regulation of metabolism by hormones, metabolic conversion of carbohydrates , lipids and proteins, function of liver in substances metabolism 2. Understand separate distribution and regulatin of enzymes in cell , integration regulation of substances metabolism, substance metabolism in different tissues and organs. [Contents] 1. Overview of Metabolism (1) Integration of metabolism (2) TAC is the common pathway for the catabolism of carbohydrates fat and proteins (3) NADPH provides the reducing equivalent needed for anabolism (4) The purpose of all metabolic pathways of energy metabolism is to maitain ATP and /or glucose supplies (5) Metabolism is regulable (6) Metabolism is different tissues and organs has different characteristics (7) Each metabolite has a common metabolic pool 2. Regulation of Substance Metabolism (1) Separate distribution and regulatin of enzymes in cell (2) Allosteric regulation of key enzymes (3) Chemical modification of key enzymes (4) Regulation of the amount of enzyme (5) Regulation of metabolism by hormones (6) Integration regulation of substances metabolism 3. Metabolism Interrelationship of Nutritive Substance (1) Interrelationships of anabolism and catabolism (2) Interrelationships of nutrient substances in energy metabolism (3) Metabolic conversion of carbohydrates, lipids and proteins (4) Not all major substances in metabolism are interconvertible (5) Some nutritive substances are needed for the metabolic alteration of nonnutritive substance 4. Substance Metabolism in Different Tissues and Organs (1) Characteristics of substances metabolism in different tissues and organs (2) Function of liver in substances metabolism Part 11: GENE AND GENOME [Objectives] 1. Master the molecular component of DNA and RNA, the defination of DNA denaturation, DNA renaturation, hyperchromicity, Tm; structural gene, gene expression, operon, polycistron, monocistron, genome. The structural characteristics and functions of mRNA, tRNA, rRNA; the characteristics of eukaryotic genome. 2. Understand the link bonds between nucleotids; Eukaryotic genes contain many regulatory elements: promoter, enhancer, silencer and other respons element, Basic structure characteristics of prokaryotic genes:polycistronic mRNA, operon. [Contents] 1. Structure and Funtion of DNA (1) Structure of DNA: primary structur : sequence of nucleotide, secondary structure: double helix model (2) Characteristics of DNA: denaturation and renaturation of DNA (3) The function of DNA: contains genetic information (4) Specific nulease digest DNA: endonucleases 2. Structure and Function of RNA (1) The chemical nature of RNA differs from that of DNA (2) RNAis organized in several unique structures: mRNA, tRNA, rRNA, small stable RNA. (3) The function of RNA (4) Specific nulease digest RNA: RNase 3. Structure and Function of Gene (1) Gene is the fundamental genetic unit (2) Gene contains protein and RNA coding region and regulatory elements (3) Genetic information is transmitted according to the central dogma (4) Basic structure characteristics of prokaryotic genes:polycistronic mRNA, operon (5) Basic structure characteristics of eukaryotic genes:monocistronic mRNA, split gene (6) Eukaryotic genes contain many regulatory elements: promoter, enhancer,silencer and other respons element (7) Characteristics of sturcture of virus gene 4. Structure and function of genome (1) Different organisms have obviusly different genomic features (2) Basic characteristics of viral genomes (3) Differnet virus have different nucleic acids as their genome (4) Introduction of some typical viral genomes (5) The prokaryotic genomes are relatively complex (6) Genome of eukaryotes are more complex (7) Repetitive sequences in human genome (8) Gene families (9) The human genome progect Part 12: FLOW OF GENETIC INFORMATION [Objectives] 1. Master the definition of Semi-Conservative Replication, Okazaki fragments, Telomere, Telomerase, Mutation, Reverse transcriptase and the characteristics of replication, the elements to participate and coordinate in the replication, the structure and function of Telomere and Telomerase. 2. Understand the the reaction catalyzed by Reverse transcriptase and the Significance of Reverse transcriptase, the types of Mutation and the DNA repairing forms. [Contents] 1. DNA synthesis---- Replication of Genomic DNA (1) DNA replication is the process in which the whole genomes is synthesized (2) DNA replication follows a set of fundamental rules: semi-conservative, bidrectionally, semi-discontinuous, fidelity. (3) DNA replication reaction is catalyed by DNA polyerase and requires many other enzyme and protein factors (4) DNA replication in prokaryotic cells (5) DNA replication in eukaryotic cells: telomere and telomerase (6) Reverse transcription 2. DNA Damage and Repairing (1) DNA damage can result from many factors (2) DNA damage inclueds different types of alteration of DNA sequences (3) All celles have mutiple DNA repair systems:photoreactivation repair, mismatch repair, excision repair, recombination repair, SOS repair. (4) DNA damage may result in mutations:point mutation,deletion and insertion, translocation. CHAPTER 47: RNA SYNTHESIS---TRANSCRIPTION [Objectives] 1. Master the similarity and differences between replication and transcription, the composition of RNA-pol of E. Coli, the definition of Asymmetric transcription, Exon, Intron, Split gene; the Post-Transcriptional Modification of mRNA. 2. Understand the the function of core enzyme and holoenzyme; the definition of Template strand, Coding strand, and Ribozyme [Contents] 1. Gene expression 2. RNA is synthesized from a DNA template by an RNA polymerase 3. The initiation of transcription involves the binding of RNA polymerase to promoter 4. RNA synthesis proceeds in stages:iniation, elongation, termination. 5. RNA synthesis in prokayotic cells 6. RNA synthesis in eukaryotic cells 7. Many RNA molecules are processed before they become funtional (1) Eukaryotic mRNAis modified at the 5’ and 3’ ends: 5’ cap and 3’ tail (2) Splicing is needed for the fomation of the mature Mrna (3) RNA editing 8. The processing of rRNA and tRNA CHAPTER 48: PROTEIN SYNTHESIS----TRANSLATION [Objectives] 1. Master the multiple elements to participate and coordinate in the protein synthesis, the function of mRNA, tRNA, rRNA, the properties of genetic codon; the definition of Genetic codon, Chaperons; the steps of ribosomal cycle 2. Understand the the function of aminoacyl-tRNA synthetase; the definition of S-D sequence, Signal peptide, the macromolecules assisting the protein folding. [Contents] 1. Many substances are involved in the process of translation: ribosome, mRNA, tRNA, amino acid, special enzymes, ATP, GTP. 2. mRNA molecule contains codons that specify the amino acid sequence of protein:universal, commaless, wobble, degeneracy 3. The attchment of amino acids to specific tRNAs is catalyzed by aminoacyle-tRNA synthetases 4. Basic process of protein synthesis in prokaryotes: (1) Initiation: IF1,IF2, IF3 (2) Enlongation: ribosomal cycle: the entry of aminoacyle-tRNA into the A site, transpeptidation, translocation; EF-T (3) Termination: RF 5. Basic process of protein synthesis in eukaryotes 6. Posttranslational process: (1) primary sturcture processing (2) higher structures processing: chaperone (3) amino acid modified 7. Directed transportation of protein 8. Some antibiotics work because they selectively inhibit protein synthesis CHAPTER 49-50: GENE EXPRESSION REGULATION [Objectives] 1. Master the definition of Gene expression, Temporal and Spatial specificity of gene expression, Constitutive expression, Cis-acting elements, trans-acting factors, Promoter, Operon;, the Structural features of Eukaryotic gene, the varieties and function of Eukaryotic promoters. 2. Understand the the definition of Gene, Genome, housekeeping genes, Antisense RNA; the properties of Prokaryotic transcription regulation; the Structural features of General transcription factors(TF), DNA-binding domain(Zinc finger, Leucine zipper, Helix-loop-helix) [Contents] 1. Basic concepts and principles of regulation and control of gene expression (1) Genes are expressed with temporl speciticity and spatial specificity (2) The manners of gene expression:constitutive gene expression, induction, repression (3) Transcription is the main level for regulation and control of gene expression: RNA polymerase, cis-actiong elements and trans-actiong factors (4) Regulatory proteins have discrete DNA-bingding domains: helix-turn-helix, zinc finger, helix-loop-helix, leucine zipper 2. Characteristics of regulation of transcription in prokaryotes: lac operon 3. Regulation of gene expression in eukaryotes (1) regulation and control on transcription in initiation: TF, polⅡ, pomoter (2) post-transcriptional regulation and control: end modification, alternative splicing PART 13: CELL COMMUNICATION AND SIGNAL TRANSDUCTION [Objectives] 1. Master the definition of Second messenger, Receptor; the structural properties of G Protein-Coupled Receptors and Tyrosine protein kinase Receptor, the definition and structural properties of G protein, the Properties of binding of receptor and ligand; cAMP dependent-protein kinase A pathway, cGMP dependent PKG pathway, Ca2+ dependent PK pathway, Tyrosine protein Kinase pathway and Intracellular receptor pathway. 2. Understand the the definition of Extracellular molecules, most of the Membrane receptors are Glycoprotein and almost all the Intracellular receptors are DNA binding protein. [Contents] 1. Molecular basis of cell communication and signal transduction (1) Main manners of communication between cells: gap junctions, contact with molecules on the surface of cell membrane, chemical singals (2) Types and characteristics of chemical signals (3) Receptors 1). Four types of receptors: intracellular receptors, membrane receptors( ion channel receptors, G protein-coupled receptors, enzyme-linked receptors) 2). Second messengers and signal tranducers in cells: second messengers, protein kinase, G proteins, adaptor protein 3). Basic manners of signal transduction in cells 2. signal transduction pathways (1) Signal transduction mediated by intercellular receptors (2) Signal transduction mediated by Ion-Channel receptors (3) Signal transduction mediated by G protein-coupled receptors 1). AC-CAMP-PKA pathway 2). GC-CGMP-PKG pathway 3). Ca2+-PKC pathway 4). Tyrosine protein Kinase pathway 5). JAK-STAT pathway 6). NF-κB pathway PART 14: TECHNOLOGY IN MOLECULAR BIOLOGY [Objectives] 1. Master the definition of DNA recombination, Homologous Recombination, DNA Cloning, Restriction endonuclease, Palindrome; the principle and the process of DNA cloning 2. Understand the definition of Molecular hybridization, Genetic Engineering, target gene, Vector, cDNA; the principle of southern blotting, northern blotting, and western blotting, the principle of DNA sequencing; the types of DNA recombination in nature. [Contents] 1. Molecular hybridization of nucleic acids 2. Polymerase chain reactin : denaturation, annealing and extension 3. DNA sequencing 4. Genetic recombination and genetic engineering (1) Recombination of DNA: homologous recombination, conjugation, transformation, site-specific rebombination, transposon (2) Concepts involved in DNA recombination: clone, restriction enzymes, vectors (3) Basic principles of DNA recombination (4) Expression of the cloned gene PART 15: GENE AND DISEASE [Objectives] 1. Master the definition of oncogene, anti-oncogene , virus oncogene (v-onc), cellular- oncogene (c-onc); the Mechanisms of Oncogene Activation, the Mechanism of action of P53 gene. 2. Understand the definition of and growth factor, gene diagnosis, gene therapy; the expression products and function of oncogene; main stratrgies of gene therapy and basic techniques used for gene inactivation/suppression. [Contents] 1. Oncogene and anti-oncogenes (1) viral oncogene and cellular oncogene (2) Function of the products of oncogenes: growth fctors, receptors of growth factors, G-proteins, protein kinase, DNA binding proteins. (3) Maligant activation of oncogenes (4) Anti-oncogene: P53 gene, Rb gene 2. Gene Diagnosis (1) Basic techniques used for gene diagnosis (2) Basic methods used for gene diagnosis (3) Application of gene diagnosis 3. Gene Therapy (1) Main stratrgies of gene therapy (2) Basic techniques used for gene inactivation/suppression: siRNA, anti-sense RNA Experimental skill NO. 1 Experimental Skill Name Protein Salt Precipitation Hours 4 2 Determination of serum Proteins 4 3 Km Assay of alkaline phosphatase (AKP) 4 4 The measurement of the blood sugar 4 The Function of Lactate Dehydrogenase(LDH)and coenzymeⅠ 4 6 Mensuration of GPT activity in serum 4 7 Polymerase Chain Reaction(PCR) and agarose Gel electrophoresis 8 8 Purification of Urase through the Gel filtration 8 9 Polyacrylamide Gel Disc Electrophoresis(PAGE) of Serum Protein 8 5 Total 48 REFERENCES 1. Harper’s Biochemistry, Ed. R.K. Murray, D.K. Granner, P.A. Mayes and V.W. Rodwell, Appleton and Lange, Stamford, Connecticut 2. Principles of Biochemistry, Ed. Lehinger, Nelson and Cox. CBS Publishers and Distributors 3. Biochemistry Ed, Lubert Stryer, W.H. Freeman and Company, New York