Year 3 Pharm.D Dr. V. Chitra
|
|
|
- Marjory Matilda Dean
- 7 years ago
- Views:
Transcription
1 Year 3 Pharm.D Dr. V. Chitra
2 RNA processing CENTRAL DOGMA DNA RNA PROTEIN DNA is the genetic material, located in the nucleus. mrna carries a faithful copy of a gene into the cytoplasm for protein synthesis. Proteins are enzymatic and structural elements, made in the cytoplasm.
3 RNA processing DNA RNA discovery of reverse transcriptase (1970) RNA can be back-transcribed into DNA PROTEIN DNA pre-mrna MATURE RNA discovery of pre-mrna splicing (1977) PROTEIN
4 RNA processing DNA PRECURSOR RNAs MATURE RNA PROTEIN Cleavage Nucleotide addition Nucleotide insertion Nucleotide removal Sequence addition Sequence removal Base modification Sugar modification pre-rrna pre-trna pre-mrna Other RNA-related factors affecting expression abundance (combination of transcription and degradation) localization recruitment to ribosomes
5 RNAs that function in RNA processing rrna snornas trna RNase P snornas mrna snrnas grnas mirnas sirnas form complexes with protein, direct nt modifications has both RNA and protein components form complexes with protein, direct nt modifications U1,2,4,5,6 form spliceosomes with many proteins provide sequence information for RNA editing important for regulating gene expression important for regulating gene expression sno, small nucleolar sn, small nuclear
6 RNAs that function in RNA processing RNA functions in RNA processing Site of action typically directed by complementary basepairing Action often catalyzed by associated protein(s) HOWEVER some RNAs ribozymes have catalytic activity self-splicing intron in Tetrahymena rrna hammerhead ribozymes self-cleave snrnas appear to have catalytic activity in pre-mrna splicing
7 rrna processing Cleavage: Pre-rRNA is cleaved to 18S, 5.8S, 28S rrnas; cleavage order is precise (within species). DNA RNA 18S 5.8S 28S ETS ITS1 ITS2 ETS 18S 5.8S 28S ETS ITS1 ITS2 ETS 18S 5.8S 28S ETS ITS1 ITS2 ETS 18S 5.8S 28S ETS ITS1 ITS2 ETS 18S 5.8S 28S Schematic is ETS ITS1 ITS2 ETS generic and not to scale;
8 trna processing Removal of 5 leader and 3 trailer; order not absolute CCA may be encoded (prok.) or added post-transcriptionally (euk.) Acceptor stem sometimes edited Some trnas have introns in the anticodon loop editing intron Many nucleotide modifications
9 rrna processing in nucleolus Modification: both bases and sugars are subject to modification rrnas ~100 riboses are 2 O-methylated 10 bases methylated 95 Us isomerized to pseudous (ψs) modifications occur prior to assembly into ribosomes trnas ~100 kinds of modified nucleotides some incorporated during transcription some chemically modified post-transcription snornas direct many modifications
10 RNA modification snornas modify rrnas, trnas, mirnas, sirnas, and mrnas number variable between organisms; more being found size range ~60 to ~300 nt encoded individually, in polycistronic clusters, or in introns Most C/D snornas (and snrnas) have a 5 trimethylguanosine (TMG) cap. Patients with motor neuron degeneration diseases often develop antibodies that recognize TMG caps. H/ACA snornas direct pseudouridylation C/D snornas direct methylation
11 mrna processing Capping Splicing Polyadenylation Editing Export Localization Translation Turnover From birth to death, an mrna associates with a variety of proteins and other RNAs that modify it directly or affect its abundance and recruitment to ribosomes. Aguilera 2005 mrnp (messenger ribonucleoprotein particle): mrna + associated proteins
12 mrna processing - capping 5 capping required for translation of eukaryotic mrnas mediates initial ribosome binding 7-methylguanosine cap added as RNA exits RNApol II...G linked via a 5-5 pyrophosphate bridge to first nt of mrna...g methylated post-addition...first bases in mrna may also become methylated pause after capping, then cap-binding complex (CBC) associates with cap and elongation proceeds Aguilar 2005
13 RNA processing - splicing Removes blocks of non-coding sequence (introns: intervening sequences), ligates the surrounding coding sequences (exons: expressed sequences). Catalyzed by an RNA/protein complex, the spliceosome, which is composed of five ribonucleoprotein complexes (snrnps). Each snrnp has a distinct small nuclear RNA (snrna): U1, U2, U4, U5, or U6. Each also has a set of common core proteins and some that are specific to the particular snrna. Occurs by two transesterification reactions (no energy required) cis-splicing: both exons on same RNA trans-splicing: exons on different RNAs
Protein Synthesis How Genes Become Constituent Molecules
Protein Synthesis Protein Synthesis How Genes Become Constituent Molecules Mendel and The Idea of Gene What is a Chromosome? A chromosome is a molecule of DNA 50% 50% 1. True 2. False True False Protein
The world of non-coding RNA. Espen Enerly
The world of non-coding RNA Espen Enerly ncrna in general Different groups Small RNAs Outline mirnas and sirnas Speculations Common for all ncrna Per def.: never translated Not spurious transcripts Always/often
DNA Replication & Protein Synthesis. This isn t a baaaaaaaddd chapter!!!
DNA Replication & Protein Synthesis This isn t a baaaaaaaddd chapter!!! The Discovery of DNA s Structure Watson and Crick s discovery of DNA s structure was based on almost fifty years of research by other
Basic Principles of Transcription and Translation
The Flow of Genetic Information The information content of DNA is in the form of specific sequences of nucleotides The DNA inherited by an organism leads to specific traits by dictating the synthesis of
Lecture Series 7. From DNA to Protein. Genotype to Phenotype. Reading Assignments. A. Genes and the Synthesis of Polypeptides
Lecture Series 7 From DNA to Protein: Genotype to Phenotype Reading Assignments Read Chapter 7 From DNA to Protein A. Genes and the Synthesis of Polypeptides Genes are made up of DNA and are expressed
AP BIOLOGY 2009 SCORING GUIDELINES
AP BIOLOGY 2009 SCORING GUIDELINES Question 4 The flow of genetic information from DNA to protein in eukaryotic cells is called the central dogma of biology. (a) Explain the role of each of the following
Transcription and Translation of DNA
Transcription and Translation of DNA Genotype our genetic constitution ( makeup) is determined (controlled) by the sequence of bases in its genes Phenotype determined by the proteins synthesised when genes
trna Processing and Modification
trna Processing and Modification RNA POL III - TRANSCRIPTS 5S RNA, trna, repetitive Sequenzen (Alu-typ), versch. kleine stabile RNAs (7SL - RNA vom signal recognition particle (SRP)), U6 RNA 5S RNA nicht
Molecular Genetics. RNA, Transcription, & Protein Synthesis
Molecular Genetics RNA, Transcription, & Protein Synthesis Section 1 RNA AND TRANSCRIPTION Objectives Describe the primary functions of RNA Identify how RNA differs from DNA Describe the structure and
From DNA to Protein. Proteins. Chapter 13. Prokaryotes and Eukaryotes. The Path From Genes to Proteins. All proteins consist of polypeptide chains
Proteins From DNA to Protein Chapter 13 All proteins consist of polypeptide chains A linear sequence of amino acids Each chain corresponds to the nucleotide base sequence of a gene The Path From Genes
13.2 Ribosomes & Protein Synthesis
13.2 Ribosomes & Protein Synthesis Introduction: *A specific sequence of bases in DNA carries the directions for forming a polypeptide, a chain of amino acids (there are 20 different types of amino acid).
Micro RNAs: potentielle Biomarker für das. Blutspenderscreening
Micro RNAs: potentielle Biomarker für das Blutspenderscreening micrornas - Background Types of RNA -Coding: messenger RNA (mrna) -Non-coding (examples): Ribosomal RNA (rrna) Transfer RNA (trna) Small nuclear
Lecture 1 MODULE 3 GENE EXPRESSION AND REGULATION OF GENE EXPRESSION. Professor Bharat Patel Office: Science 2, 2.36 Email: b.patel@griffith.edu.
Lecture 1 MODULE 3 GENE EXPRESSION AND REGULATION OF GENE EXPRESSION Professor Bharat Patel Office: Science 2, 2.36 Email: b.patel@griffith.edu.au What is Gene Expression & Gene Regulation? 1. Gene Expression
Genetic information (DNA) determines structure of proteins DNA RNA proteins cell structure 3.11 3.15 enzymes control cell chemistry ( metabolism )
Biology 1406 Exam 3 Notes Structure of DNA Ch. 10 Genetic information (DNA) determines structure of proteins DNA RNA proteins cell structure 3.11 3.15 enzymes control cell chemistry ( metabolism ) Proteins
Name Class Date. Figure 13 1. 2. Which nucleotide in Figure 13 1 indicates the nucleic acid above is RNA? a. uracil c. cytosine b. guanine d.
13 Multiple Choice RNA and Protein Synthesis Chapter Test A Write the letter that best answers the question or completes the statement on the line provided. 1. Which of the following are found in both
Chapter 17: From Gene to Protein
AP Biology Reading Guide Fred and Theresa Holtzclaw Julia Keller 12d Chapter 17: From Gene to Protein 1. What is gene expression? Gene expression is the process by which DNA directs the synthesis of proteins
Structure and Function of DNA
Structure and Function of DNA DNA and RNA Structure DNA and RNA are nucleic acids. They consist of chemical units called nucleotides. The nucleotides are joined by a sugar-phosphate backbone. The four
2013 W. H. Freeman and Company. 26 RNA Metabolism
2013 W. H. Freeman and Company 26 RNA Metabolism CHAPTER 26 RNA Metabolism Key topics: Transcription: DNA-dependent synthesis of RNA Capping and splicing: RNA processing Overview of RNA Function Ribonucleic
2. The number of different kinds of nucleotides present in any DNA molecule is A) four B) six C) two D) three
Chem 121 Chapter 22. Nucleic Acids 1. Any given nucleotide in a nucleic acid contains A) two bases and a sugar. B) one sugar, two bases and one phosphate. C) two sugars and one phosphate. D) one sugar,
Sample Questions for Exam 3
Sample Questions for Exam 3 1. All of the following occur during prometaphase of mitosis in animal cells except a. the centrioles move toward opposite poles. b. the nucleolus can no longer be seen. c.
Chapter 26 RNA metabolism
Chapter 26 RNA metabolism 26.0 Intro RNA appears to be very similar to DNA has the 2' OH on the ribose has U instead of T Most RNA functions as single stand so folds back on itself Gives more structural
Functional and Biomedical Aspects of Genome Research
Functional and Biomedical Aspects of Genome Research 20 11 35 Vorlesung SS 04 Bartsch, Jockusch & Schmitt-John Mi. 9:15-10:00, in W7-135 13 Functional RNAs Thomas Schmitt-John micro RNAs small interfering
The Nucleus: DNA, Chromatin And Chromosomes
The Nucleus: DNA, Chromatin And Chromosomes Professor Alfred Cuschieri Department of Anatomy, University of Malta. Objectives By the end of this unit the student should be able to: 1. List the major structural
Transcription: RNA Synthesis, Processing & Modification
Transcription: RNA Synthesis, Processing & Modification 1 Central dogma DNA RNA Protein Reverse transcription 2 Transcription The process of making RNA from DNA Produces all type of RNA mrna, trna, rrna,
The Steps. 1. Transcription. 2. Transferal. 3. Translation
Protein Synthesis Protein synthesis is simply the "making of proteins." Although the term itself is easy to understand, the multiple steps that a cell in a plant or animal must go through are not. In order
a. Ribosomal RNA rrna a type ofrna that combines with proteins to form Ribosomes on which polypeptide chains of proteins are assembled
Biology 101 Chapter 14 Name: Fill-in-the-Blanks Which base follows the next in a strand of DNA is referred to. as the base (1) Sequence. The region of DNA that calls for the assembly of specific amino
To be able to describe polypeptide synthesis including transcription and splicing
Thursday 8th March COPY LO: To be able to describe polypeptide synthesis including transcription and splicing Starter Explain the difference between transcription and translation BATS Describe and explain
Translation. Translation: Assembly of polypeptides on a ribosome
Translation Translation: Assembly of polypeptides on a ribosome Living cells devote more energy to the synthesis of proteins than to any other aspect of metabolism. About a third of the dry mass of a cell
RNA & Protein Synthesis
RNA & Protein Synthesis Genes send messages to cellular machinery RNA Plays a major role in process Process has three phases (Genetic) Transcription (Genetic) Translation Protein Synthesis RNA Synthesis
Central Dogma. Lecture 10. Discussing DNA replication. DNA Replication. DNA mutation and repair. Transcription
Central Dogma transcription translation DNA RNA Protein replication Discussing DNA replication (Nucleus of eukaryote, cytoplasm of prokaryote) Recall Replication is semi-conservative and bidirectional
CCR Biology - Chapter 8 Practice Test - Summer 2012
Name: Class: Date: CCR Biology - Chapter 8 Practice Test - Summer 2012 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. What did Hershey and Chase know
Translation Study Guide
Translation Study Guide This study guide is a written version of the material you have seen presented in the replication unit. In translation, the cell uses the genetic information contained in mrna to
Non-coding RNAs: lessons from the small nuclear and small nucleolar RNAs
Non-coding RNAs: lessons from the small nuclear and small nucleolar RNAs A. Gregory Matera*, Rebecca M. Terns and Michael P. Terns Abstract Recent advances have fuelled rapid growth in our appreciation
The sequence of bases on the mrna is a code that determines the sequence of amino acids in the polypeptide being synthesized:
Module 3F Protein Synthesis So far in this unit, we have examined: How genes are transmitted from one generation to the next Where genes are located What genes are made of How genes are replicated How
Control of Gene Expression
Home Gene Regulation Is Necessary? Control of Gene Expression By switching genes off when they are not needed, cells can prevent resources from being wasted. There should be natural selection favoring
RNA Structure and folding
RNA Structure and folding Overview: The main functional biomolecules in cells are polymers DNA, RNA and proteins For RNA and Proteins, the specific sequence of the polymer dictates its final structure
Name Date Period. 2. When a molecule of double-stranded DNA undergoes replication, it results in
DNA, RNA, Protein Synthesis Keystone 1. During the process shown above, the two strands of one DNA molecule are unwound. Then, DNA polymerases add complementary nucleotides to each strand which results
GENE REGULATION. Teacher Packet
AP * BIOLOGY GENE REGULATION Teacher Packet AP* is a trademark of the College Entrance Examination Board. The College Entrance Examination Board was not involved in the production of this material. Pictures
Coding sequence the sequence of nucleotide bases on the DNA that are transcribed into RNA which are in turn translated into protein
Assignment 3 Michele Owens Vocabulary Gene: A sequence of DNA that instructs a cell to produce a particular protein Promoter a control sequence near the start of a gene Coding sequence the sequence of
Complex multicellular organisms are produced by cells that switch genes on and off during development.
Home Control of Gene Expression Gene Regulation Is Necessary? By switching genes off when they are not needed, cells can prevent resources from being wasted. There should be natural selection favoring
Functional RNAs; RNA catalysts, mirna,
Functional RNAs; RNA catalysts, mirna, srna, RNAi... RNAs have many functions rrna (ribosomal RNA) trna (transfer RNA) mrna (Messenger RNA) snrna (including snorna) ) (Small nuclear RNA- splicing) Other
Genetics Module B, Anchor 3
Genetics Module B, Anchor 3 Key Concepts: - An individual s characteristics are determines by factors that are passed from one parental generation to the next. - During gamete formation, the alleles for
Module 3 Questions. 7. Chemotaxis is an example of signal transduction. Explain, with the use of diagrams.
Module 3 Questions Section 1. Essay and Short Answers. Use diagrams wherever possible 1. With the use of a diagram, provide an overview of the general regulation strategies available to a bacterial cell.
Thymine = orange Adenine = dark green Guanine = purple Cytosine = yellow Uracil = brown
1 DNA Coloring - Transcription & Translation Transcription RNA, Ribonucleic Acid is very similar to DNA. RNA normally exists as a single strand (and not the double stranded double helix of DNA). It contains
Control of Gene Expression
Control of Gene Expression (Learning Objectives) Explain the role of gene expression is differentiation of function of cells which leads to the emergence of different tissues, organs, and organ systems
V22: involvement of micrornas in GRNs
What are micrornas? V22: involvement of micrornas in GRNs How can one identify micrornas? What is the function of micrornas? Elisa Izaurralde, MPI Tübingen Huntzinger, Izaurralde, Nat. Rev. Genet. 12,
Chapter 18 Regulation of Gene Expression
Chapter 18 Regulation of Gene Expression 18.1. Gene Regulation Is Necessary By switching genes off when they are not needed, cells can prevent resources from being wasted. There should be natural selection
RNA: Transcription and Processing
8 RNA: Transcription and Processing WORKING WITH THE FIGURES 1. In Figure 8-3, why are the arrows for genes 1 and 2 pointing in opposite directions? The arrows for genes 1 and 2 indicate the direction
Lecture 4. Polypeptide Synthesis Overview
Initiation of Protein Synthesis (4.1) Lecture 4 Polypeptide Synthesis Overview Polypeptide synthesis proceeds sequentially from N Terminus to C terminus. Amino acids are not pre-positioned on a template.
13.4 Gene Regulation and Expression
13.4 Gene Regulation and Expression Lesson Objectives Describe gene regulation in prokaryotes. Explain how most eukaryotic genes are regulated. Relate gene regulation to development in multicellular organisms.
DNA (genetic information in genes) RNA (copies of genes) proteins (functional molecules) directionality along the backbone 5 (phosphate) to 3 (OH)
DNA, RNA, replication, translation, and transcription Overview Recall the central dogma of biology: DNA (genetic information in genes) RNA (copies of genes) proteins (functional molecules) DNA structure
Specific problems. The genetic code. The genetic code. Adaptor molecules match amino acids to mrna codons
Tutorial II Gene expression: mrna translation and protein synthesis Piergiorgio Percipalle, PhD Program Control of gene transcription and RNA processing mrna translation and protein synthesis KAROLINSKA
CHAPTER 40 The Mechanism of Protein Synthesis
CHAPTER 40 The Mechanism of Protein Synthesis Problems: 2,3,6,7,9,13,14,15,18,19,20 Initiation: Locating the start codon. Elongation: Reading the codons (5 3 ) and synthesizing protein amino carboxyl.
DNA, RNA, Protein synthesis, and Mutations. Chapters 12-13.3
DNA, RNA, Protein synthesis, and Mutations Chapters 12-13.3 1A)Identify the components of DNA and explain its role in heredity. DNA s Role in heredity: Contains the genetic information of a cell that can
Lecture 26: Overview of deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) structure
Lecture 26: Overview of deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) structure Nucleic acids play an important role in the storage and expression of genetic information. They are divided into
RNA and Protein Synthesis
Name lass Date RN and Protein Synthesis Information and Heredity Q: How does information fl ow from DN to RN to direct the synthesis of proteins? 13.1 What is RN? WHT I KNOW SMPLE NSWER: RN is a nucleic
Ms. Campbell Protein Synthesis Practice Questions Regents L.E.
Name Student # Ms. Campbell Protein Synthesis Practice Questions Regents L.E. 1. A sequence of three nitrogenous bases in a messenger-rna molecule is known as a 1) codon 2) gene 3) polypeptide 4) nucleotide
CHAPTER 30: PROTEIN SYNTHESIS
CHAPTER 30: PROTEIN SYNTHESIS (Translation) Translation: mrna protein LECTURE TOPICS Complexity, stages, rate, accuracy Amino acid activation [trna charging] trnas and translating the Genetic Code - Amino
TRANSCRIPTION TRANSLATION - GENETIC CODE AND OUTLINE OF PROTEIN SYNTHESIS
TRANSCRIPTION TRANSLATION - GENETIC CODE AND OUTLINE OF PROTEIN SYNTHESIS Central Dogma of Protein Synthesis Proteins constitute the major part by dry weight of an actively growing cell. They are widely
En vue de l'obtention du. Présentée et soutenue par Natalia PINZON RESTREPO Le 16 Décembre 2011
THÈSE En vue de l'obtention du DOCTORAT DE L UNIVERSITÉ DE TOULOUSE Délivré par l'université Toulouse III - Paul Sabatier Discipline ou spécialité : Biologie Moléculaire Présentée et soutenue par Natalia
Just the Facts: A Basic Introduction to the Science Underlying NCBI Resources
1 of 8 11/7/2004 11:00 AM National Center for Biotechnology Information About NCBI NCBI at a Glance A Science Primer Human Genome Resources Model Organisms Guide Outreach and Education Databases and Tools
PRACTICE TEST QUESTIONS
PART A: MULTIPLE CHOICE QUESTIONS PRACTICE TEST QUESTIONS DNA & PROTEIN SYNTHESIS B 1. One of the functions of DNA is to A. secrete vacuoles. B. make copies of itself. C. join amino acids to each other.
Gene Models & Bed format: What they represent.
GeneModels&Bedformat:Whattheyrepresent. Gene models are hypotheses about the structure of transcripts produced by a gene. Like all models, they may be correct, partly correct, or entirely wrong. Typically,
Five-year relative survival rates. Cancer. Age-adjusted cancer death rates. Proteomic Technologies for Cancer Biomarker Discovery 2010/3/22
Cancer Five-year relative survival rates Basal lamina Underlyig tissue Normal tissue Carcinoma Invasive carcinoma 1 http://www.cancer.org/docroot/home/index.asp 2 Proteomic Technologies for Cancer Biomarker
Announcements. Chapter 15. Proteins: Function. Proteins: Function. Proteins: Structure. Peptide Bonds. Lab Next Week. Help Session: Monday 6pm LSS 277
Lab Next Week Announcements Help Session: Monday 6pm LSS 277 Office Hours Chapter 15 and Translation Proteins: Function Proteins: Function Enzymes Transport Structural Components Regulation Communication
Question 4 /29 points. Total /100 points
MIT Department of Biology 7.28, Spring 2005 - Molecular Biology 7.28 Spring 2005 Exam Three Question 1 Question 2 Question 3 /30 points /20 points /21 points Question 4 /29 points Total /100 points 1 Question
From DNA to Protein
Nucleus Control center of the cell contains the genetic library encoded in the sequences of nucleotides in molecules of DNA code for the amino acid sequences of all proteins determines which specific proteins
Overview of Eukaryotic Gene Prediction
Overview of Eukaryotic Gene Prediction CBB 231 / COMPSCI 261 W.H. Majoros What is DNA? Nucleus Chromosome Telomere Centromere Cell Telomere base pairs histones DNA (double helix) DNA is a Double Helix
Answer: 2. Uracil. Answer: 2. hydrogen bonds. Adenine, Cytosine and Guanine are found in both RNA and DNA.
Answer: 2. Uracil Adenine, Cytosine and Guanine are found in both RNA and DNA. Thymine is found only in DNA; Uracil takes its (Thymine) place in RNA molecules. Answer: 2. hydrogen bonds The complementary
Catalysis by Enzymes. Enzyme A protein that acts as a catalyst for a biochemical reaction.
Catalysis by Enzymes Enzyme A protein that acts as a catalyst for a biochemical reaction. Enzymatic Reaction Specificity Enzyme Cofactors Many enzymes are conjugated proteins that require nonprotein portions
Basic Concepts of DNA, Proteins, Genes and Genomes
Basic Concepts of DNA, Proteins, Genes and Genomes Kun-Mao Chao 1,2,3 1 Graduate Institute of Biomedical Electronics and Bioinformatics 2 Department of Computer Science and Information Engineering 3 Graduate
AP Biology TEST #5 - Chapters 11-14, 16 - REVIEW SHEET
NAME: AP Biology TEST #5 - Chapters 11-14, 16 - REVIEW SHEET 1. Griffith's experiments showing the transformation of R strain pneumococcus bacteria to S strain pneumococcus bacteria in the presence of
Algorithms in Computational Biology (236522) spring 2007 Lecture #1
Algorithms in Computational Biology (236522) spring 2007 Lecture #1 Lecturer: Shlomo Moran, Taub 639, tel 4363 Office hours: Tuesday 11:00-12:00/by appointment TA: Ilan Gronau, Taub 700, tel 4894 Office
Lecture 6. Regulation of Protein Synthesis at the Translational Level
Regulation of Protein Synthesis (6.1) Lecture 6 Regulation of Protein Synthesis at the Translational Level Comparison of EF-Tu-GDP and EF-Tu-GTP conformations EF-Tu-GDP EF-Tu-GTP Next: Comparison of GDP
BCH401G Lecture 39 Andres
BCH401G Lecture 39 Andres Lecture Summary: Ribosome: Understand its role in translation and differences between translation in prokaryotes and eukaryotes. Translation: Understand the chemistry of this
Chapter 31 Transcription
Chapter 31 Transcription 1. The role of RNA in protein synthesis 2. RNA polymerase 3. Control of transcription in eukaryotes 4. Posttranscriptional processing Three major classes of RNA All participate
1 Mutation and Genetic Change
CHAPTER 14 1 Mutation and Genetic Change SECTION Genes in Action KEY IDEAS As you read this section, keep these questions in mind: What is the origin of genetic differences among organisms? What kinds
Modeling DNA Replication and Protein Synthesis
Skills Practice Lab Modeling DNA Replication and Protein Synthesis OBJECTIVES Construct and analyze a model of DNA. Use a model to simulate the process of replication. Use a model to simulate the process
Outline. MicroRNA Bioinformatics. microrna biogenesis. short non-coding RNAs not considered in this lecture. ! Introduction
Outline MicroRNA Bioinformatics Rickard Sandberg Dept. of Cell and Molecular Biology (CMB) Karolinska Institutet! Introduction! microrna target site prediction! Useful resources 2 short non-coding RNAs
Control of Gene Expression
Control of Gene Expression What is Gene Expression? Gene expression is the process by which informa9on from a gene is used in the synthesis of a func9onal gene product. What is Gene Expression? Figure
mrna EDITING Watson et al., BIOLOGIA MOLECOLARE DEL GENE, Zanichelli editore S.p.A. Copyright 2005
mrna EDITING mrna EDITING http://dbb.urmc.rochester.edu/labs/smith/research_2.htm The number of A to I sites in the human transcriptome >15;000 the vast majority of these sites occurring in Alu repeats
Protein Synthesis. Page 41 Page 44 Page 47 Page 42 Page 45 Page 48 Page 43 Page 46 Page 49. Page 41. DNA RNA Protein. Vocabulary
Protein Synthesis Vocabulary Transcription Translation Translocation Chromosomal mutation Deoxyribonucleic acid Frame shift mutation Gene expression Mutation Point mutation Page 41 Page 41 Page 44 Page
RNAi Shooting the Messenger!
RNAi Shooting the Messenger! Bronya Keats, Ph.D. Department of Genetics Louisiana State University Health Sciences Center New Orleans Email: bkeats@lsuhsc.edu RNA interference (RNAi) A mechanism by which
2006 7.012 Problem Set 3 KEY
2006 7.012 Problem Set 3 KEY Due before 5 PM on FRIDAY, October 13, 2006. Turn answers in to the box outside of 68-120. PLEASE WRITE YOUR ANSWERS ON THIS PRINTOUT. 1. Which reaction is catalyzed by each
Chapter 11: Molecular Structure of DNA and RNA
Chapter 11: Molecular Structure of DNA and RNA Student Learning Objectives Upon completion of this chapter you should be able to: 1. Understand the major experiments that led to the discovery of DNA as
Biotechnology and Recombinant DNA (Chapter 9) Lecture Materials for Amy Warenda Czura, Ph.D. Suffolk County Community College
Biotechnology and Recombinant DNA (Chapter 9) Lecture Materials for Amy Warenda Czura, Ph.D. Suffolk County Community College Primary Source for figures and content: Eastern Campus Tortora, G.J. Microbiology
1. A covalent bond between two atoms represents what kind of energy? a. Kinetic energy b. Potential energy c. Mechanical energy d.
1. A covalent bond between two atoms represents what kind of energy? a. Kinetic energy b. Potential energy c. Mechanical energy d. Solar energy A. Answer a is incorrect. Kinetic energy is the energy of
Chapter 5: Organization and Expression of Immunoglobulin Genes
Chapter 5: Organization and Expression of Immunoglobulin Genes I. Genetic Model Compatible with Ig Structure A. Two models for Ab structure diversity 1. Germ-line theory: maintained that the genome contributed
Eukaryotes. www.njctl.org PSI Biology Eukaryotes & Gene Expression
Eukaryotes The Eukaryotic Cell Classwork 1. Identify two characteristics that are shared by all cells. 2. Suppose you are investigating a cell that contains a nucleus. Would you categorize this cell as
CHAPTER 6: RECOMBINANT DNA TECHNOLOGY YEAR III PHARM.D DR. V. CHITRA
CHAPTER 6: RECOMBINANT DNA TECHNOLOGY YEAR III PHARM.D DR. V. CHITRA INTRODUCTION DNA : DNA is deoxyribose nucleic acid. It is made up of a base consisting of sugar, phosphate and one nitrogen base.the
Recombinant DNA Technology
Recombinant DNA Technology Dates in the Development of Gene Cloning: 1965 - plasmids 1967 - ligase 1970 - restriction endonucleases 1972 - first experiments in gene splicing 1974 - worldwide moratorium
Cellular Respiration Worksheet 1. 1. What are the 3 phases of the cellular respiration process? Glycolysis, Krebs Cycle, Electron Transport Chain.
Cellular Respiration Worksheet 1 1. What are the 3 phases of the cellular respiration process? Glycolysis, Krebs Cycle, Electron Transport Chain. 2. Where in the cell does the glycolysis part of cellular
Outline. interfering RNA - What is dat? Brief history of RNA interference. What does it do? How does it work?
Outline Outline interfering RNA - What is dat? Brief history of RNA interference. What does it do? How does it work? What is RNA interference? Recently discovered regulatory level. Genome immune system.
mirnaselect pep-mir Cloning and Expression Vector
Product Data Sheet mirnaselect pep-mir Cloning and Expression Vector CATALOG NUMBER: MIR-EXP-C STORAGE: -80ºC QUANTITY: 2 vectors; each contains 100 µl of bacterial glycerol stock Components 1. mirnaselect
Lezioni Dipartimento di Oncologia Farmacologia Molecolare. RNA interference. Giovanna Damia 29 maggio 2006
Lezioni Dipartimento di Oncologia Farmacologia Molecolare RNA interference Giovanna Damia 29 maggio 2006 RNA INTERFERENCE Sequence-specific gene suppression by dsrnas Gene silencing by dsrna: C. elegans
RNA transcription and mrna processing
1096 RNA transcription and mrna processing Salem Health RNA transcription and mrna processing Category: Molecular genetics Significance: Translation of messenger RNA molecules (mrnas) occurs even while
MUTATION, DNA REPAIR AND CANCER
MUTATION, DNA REPAIR AND CANCER 1 Mutation A heritable change in the genetic material Essential to the continuity of life Source of variation for natural selection New mutations are more likely to be harmful
Profiling of non-coding RNA classes Gunter Meister
Profiling of non-coding RNA classes Gunter Meister RNA Biology Regensburg University Universitätsstrasse 31 93053 Regensburg Overview Classes of non-coding RNAs Profiling strategies Validation Protein-RNA
Bio 102 Practice Problems Genetic Code and Mutation
Bio 102 Practice Problems Genetic Code and Mutation Multiple choice: Unless otherwise directed, circle the one best answer: 1. Beadle and Tatum mutagenized Neurospora to find strains that required arginine