Molecular Biology of the Cell
|
|
- Kimberly Francis
- 5 years ago
- Views:
Transcription
1 Alberts Johnson Lewis Morgan Raff Roberts Walter Molecular Biology of the Cell Sixth Edition Chapter 6 (pp ) How Cells Read the Genome: From DNA to Protein Copyright Garland Science 2015 Genetic Information Flow in the Cell DNA (Information stored on hard disk) Transcription Precursor messenger RNA RNA Processing Nucleus Cytoplasm Mature mrna Protein (Final output) Translation
2 Control of Gene Expression Many steps between transcription and functional protein All reactions can (potentially) be regulated Mature Eukaryotic mrnas Are Selectively Exported from the Nucleus
3 Prok vs Euk: Differences in Translation Polycistronic Monocistronic Prok vs Euk: Differences in Translation
4 Eukaryotic Protein Synthesis Translation of mrna mrnas: the good guys and the bad guys 5 cap AUG context Kozak Consensus= GCC(A/G)CCAUGG 5 UTR length 5 UTR 2 o structure Upstream AUG 3 poly(a) tail Initiation the rate-limiting step Elongation Termination trna Molecules Match Amino Acids to Codons in mrna
5 trna Molecules Match Amino Acids to Codons in mrna Specific Enzymes Couple Each Amino Acid to Its Appropriate trna Molecule Aminoacyl trna synthetases
6 Specific Enzymes Couple Each Amino Acid to Its Appropriate trna Molecule Eukaryotic Ribosomes 40S Small Subunit 18S rrna Transcribed by RNA Pol I 60S Large Subunit 25S rrna 5.8S rrna 5S rrna I I III
7 The Nucleolus Is a Ribosome-Producing Factory The Nucleolus Is a Ribosome-Producing Factory
8 The Ribosome Is a Ribozyme The RNA Message Is Decoded in Ribosomes
9 [Mg 2+ ] = 1 2 mm, 80S ribosomes predominant Mechanism for ribosomal dissociation unclear. eif3 ( 8 subunits) : binds to 40S subunit eif6: binds to 60S subunit (??) Active dissociation??? Formation of stable ternary complex (3 o ) Met-tRNA i eif2 (α/β/γ subunits) GTP
10 Unwinding 2 o Structures in 5 UTR By eif4f: the RNA Helicase Complex eif4e: cap-binding protein; 0.2 copies/ribosome eif4g: the platform, binds to eif3/eif4a/eif4e/pab1p eif4a: DEAD-Box RNA helicase eif4b: RNA-binding protein 48S complex Ribosome Scanning Model: Locating the 1st AUG assisted by eif1 and eif1a
11 eif2b: the recycler Promote GDP/GTP exchange eif5: the fidelity factor Assess met-trnai/aug interact. Promote GTP hydrolysis by eif2 Release other translation factors eif5b
12 Basic Aspects of Translation trnas stretches across both subunits A site (Acceptor) presents the codon for next amino acid; binds incoming aminoacyl-trna P site (Donor) represents the most recently added aa; occupied by peptidyltrna carrying the nascent polypeptide Footprint of ribosome is ~35 bases of mrna Elongation: Placing the 2nd charged trna to the A site eef1a/trna/gtp The proofreading step: Checking trna/anticodon Interaction at A site
13 Peptide bond formation Peptidyltransferase = RNAs or Proteins?
14 Polysome: a unit consisting of an mrna associated with several ribosomes. Typical unit is 8 ribosomes per eukaryotic mrna Polysome Profile Analysis 48S 80S couple [60S] Halfmer 80S 1.5mer Free 40S Free 60S [60S] Halfmer Dimer 2.5mer Trimer
15 Wild-type dbp3 mutant Proteins Are Made on Polyribosomes
16 Cap + Poly(A) - mrna Initiation eif4g as an assembly platform eif4e (N-term.) eif3 (Mid.) eif4a (C term.) Hentze, M (1997) eif4g: a multipurpose ribosome adapter. Science 275, 550. Cap - Poly(A) + mrna Initiation eif4g as an assembly platform: Pab1p (Mid.) eif3 (Mid.) eif4a (C term.)
17 Cap - Poly(A) - (viral) mrna Initiation Inhibits host translation: cleaving the N-term. eif4g Use truncated eif4g to bind to IRES on viral mrna Recruit 40S/eIF3 complex to IRES for translation Cap + Poly(A) + mrna Initiation Synergy between 5 & 3 ends
18 Figure 8.41 Splicing mechanisms in group I and group II self-splicing introns and spliceosomecatalyzed splicing of pre-mrna. Which Came First? DNA, RNA, or Protein? Information & Enzymatic Activity RNA Rules! RNA World! Examples: Self-splicing catalytic RNA, Ribosome
19 Introduction All Present-Day Cells Use DNA as Their Hereditary Material
20 RNA Continues to Play a Central Role in Modern Cellular Machinery Active center of ribosome is entirely made of RNAs
21 Spliceosome Structures Solved: >35 Proteins and 4 snrnas 11 September 2015 Shi Yigong Kiyoshi Nagai Reinhard Luhrmann 23 September 2016
22 1993 Nobel Laureate
Reading Assignments. A. Genes and the Synthesis of Polypeptides. Lecture Series 7 From DNA to Protein: Genotype to Phenotype
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
More informationTranslational Initiation
Translational Initiation Lecture Outline 1. Process of Initiation. Alternative mechanisms of Initiation 3. Key Experiments on Initiation 4. Regulation of Initiation Translation is a process with three
More informationMolecular Biology (9)
Molecular Biology (9) Translation Mamoun Ahram, PhD Second semester, 2017-2018 1 Resources This lecture Cooper, Ch. 8 (297-319) 2 General information Protein synthesis involves interactions between three
More informationGene Expression: Translation. transmission of information from mrna to proteins Chapter 5 slide 1
Gene Expression: Translation transmission of information from mrna to proteins 601 20000 Chapter 5 slide 1 Fig. 6.1 General structural formula for an amino acid Peter J. Russell, igenetics: Copyright Pearson
More informationSection 7. Junaid Malek, M.D.
Section 7 Junaid Malek, M.D. RNA Processing and Nomenclature For the purposes of this class, please do not refer to anything as mrna that has not been completely processed (spliced, capped, tailed) RNAs
More informationLecture 13: PROTEIN SYNTHESIS II- TRANSLATION
http://smtom.lecture.ub.ac.id/ Password: https://syukur16tom.wordpress.com/ Password: Lecture 13: PROTEIN SYNTHESIS II- TRANSLATION http://hyperphysics.phy-astr.gsu.edu/hbase/organic/imgorg/translation2.gif
More information1. In most cases, genes code for and it is that
Name Chapter 10 Reading Guide From DNA to Protein: Gene Expression Concept 10.1 Genetics Shows That Genes Code for Proteins 1. In most cases, genes code for and it is that determine. 2. Describe what Garrod
More informationFrom Gene to Protein
From Gene to Protein Gene Expression Process by which DNA directs the synthesis of a protein 2 stages transcription translation All organisms One gene one protein 1. Transcription of DNA Gene Composed
More informationProtein synthesis II Biochemistry 302. Bob Kelm February 25, 2004
Protein synthesis II Biochemistry 302 Bob Kelm February 25, 2004 Two idealized views of the 70S ribosomal complex during translation 70S cavity Fig. 27.25 50S tunnel View with 30S subunit in front, 50S
More informationNewly made RNA is called primary transcript and is modified in three ways before leaving the nucleus:
m Eukaryotic mrna processing Newly made RNA is called primary transcript and is modified in three ways before leaving the nucleus: Cap structure a modified guanine base is added to the 5 end. Poly-A tail
More informationCHAPTER4 Translation
CHAPTER4 Translation 4.1 Outline of Translation 4.2 Genetic Code 4.3 trna and Anticodon 4.4 Ribosome 4.5 Protein Synthesis 4.6 Posttranslational Events 4.1 Outline of Translation From mrna to protein
More informationGENE ACTIVITY Gene structure Transcription Transcript processing mrna transport mrna stability Translation Posttranslational modifications
1 GENE ACTIVITY Gene structure Transcription Transcript processing mrna transport mrna stability Translation Posttranslational modifications 2 DNA Promoter Gene A Gene B Termination Signal Transcription
More informationFrom gene to protein. Premedical biology
From gene to protein Premedical biology Central dogma of Biology, Molecular Biology, Genetics transcription replication reverse transcription translation DNA RNA Protein RNA chemically similar to DNA,
More informationLecture 25: Protein Synthesis Key learning goals: Be able to explain the main stuctural features of ribosomes, and know (roughly) how many DNA and
Lecture 25: Protein Synthesis Key learning goals: Be able to explain the main stuctural features of ribosomes, and know (roughly) how many DNA and protein subunits they contain. Understand the main functions
More information9 The Process of Translation
9 The Process of Translation 9.1 Stages of Translation Process We are familiar with the genetic code, we can begin to study the mechanism by which amino acids are assembled into proteins. Because more
More information-14. -Abdulrahman Al-Hanbali. -Shahd Alqudah. -Dr Ma mon Ahram. 1 P a g e
-14 -Abdulrahman Al-Hanbali -Shahd Alqudah -Dr Ma mon Ahram 1 P a g e In this lecture we will talk about the last stage in the synthesis of proteins from DNA which is translation. Translation is the process
More informationChapter
Chapter 17 17.4-17.6 Molecular Components of Translation A cell interprets a genetic message and builds a polypeptide The message is a series of codons on mrna The interpreter is called transfer (trna)
More informationMolecular Biology - Translation of RNA to make Protein *
OpenStax-CNX module: m49485 1 Molecular Biology - Translation of RNA to make Protein * Jerey Mahr Based on Translation by OpenStax This work is produced by OpenStax-CNX and licensed under the Creative
More informationTRANSLATION: How to make proteins?
TRANSLATION: How to make proteins? EUKARYOTIC mrna CBP80 NUCLEUS SPLICEOSOME 5 UTR INTRON 3 UTR m 7 GpppG AUG UAA 5 ss 3 ss CBP20 PABP2 AAAAAAAAAAAAA 50-200 nts CYTOPLASM eif3 EJC PABP1 5 UTR 3 UTR m 7
More informationMolecular Biology of the Cell
Alberts Johnson Lewis Raff Roberts Walter Molecular Biology of the Cell Fifth Edition Chapter 6 How Cells Read the Genome: From DNA to Protein Copyright Garland Science 2008 Figure 6-1 Molecular Biology
More informationBME 5742 Biosystems Modeling and Control
BME 5742 Biosystems Modeling and Control Lecture 24 Unregulated Gene Expression Model Dr. Zvi Roth (FAU) 1 The genetic material inside a cell, encoded in its DNA, governs the response of a cell to various
More informationChapter 17 The Mechanism of Translation I: Initiation
Chapter 17 The Mechanism of Translation I: Initiation Focus only on experiments discussed in class. Completely skip Figure 17.36 Read pg 521-527 up to the sentence that begins "In 1969, Joan Steitz..."
More informationChapter 17. From Gene to Protein. Biology Kevin Dees
Chapter 17 From Gene to Protein DNA The information molecule Sequences of bases is a code DNA organized in to chromosomes Chromosomes are organized into genes What do the genes actually say??? Reflecting
More informationMolecular Biology of the Cell
Alberts Johnson Lewis Raff Roberts Walter Molecular Biology of the Cell Fifth Edition Chapter 6 How Cells Read the Genome: From DNA to Protein Copyright Garland Science 2008 Figure 6-1 Molecular Biology
More informationOrganization of Genes Differs in Prokaryotic and Eukaryotic DNA Chapter 10 p
Organization of Genes Differs in Prokaryotic and Eukaryotic DNA Chapter 10 p.110-114 Arrangement of information in DNA----- requirements for RNA Common arrangement of protein-coding genes in prokaryotes=
More informationRNA & PROTEIN SYNTHESIS. Making Proteins Using Directions From DNA
RNA & PROTEIN SYNTHESIS Making Proteins Using Directions From DNA RNA & Protein Synthesis v Nitrogenous bases in DNA contain information that directs protein synthesis v DNA remains in nucleus v in order
More informationTRANSLATION: How to make proteins?
TRANSLATION: How to make proteins? EUKARYOTIC mrna CBP80 NUCLEUS SPLICEOSOME 5 UTR INTRON 3 UTR m 7 GpppG AUG UAA 5 ss 3 ss CBP20 PABP2 AAAAAAAAAAAAA 50-200 nts CYTOPLASM eif3 EJC PABP1 5 UTR 3 UTR m 7
More informationPart IV => DNA and RNA. 4.6 RNA Translation 4.6a Genetic Code 4.6b Translational Machinery
Part IV => DNA and RNA 4.6 RNA Translation 4.6a Genetic Code 4.6b Translational Machinery Section 4.6a: Genetic Code Synopsis 4.6a - In order to translate the genetic information (or genetic code) carried
More informationTranslation and Operons
Translation and Operons You Should Be Able To 1. Describe the three stages translation. including the movement of trna molecules through the ribosome. 2. Compare and contrast the roles of three different
More informationTranslation. Genetic code
Translation Genetic code If genes are segments of DNA and if DNA is just a string of nucleotide pairs, then how does the sequence of nucleotide pairs dictate the sequence of amino acids in proteins? Simple
More informationTypes of RNA. 1. Messenger RNA(mRNA): 1. Represents only 5% of the total RNA in the cell.
RNAs L.Os. Know the different types of RNA & their relative concentration Know the structure of each RNA Understand their functions Know their locations in the cell Understand the differences between prokaryotic
More informationGCD3033:Cell Biology. Transcription
Transcription Transcription: DNA to RNA A) production of complementary strand of DNA B) RNA types C) transcription start/stop signals D) Initiation of eukaryotic gene expression E) transcription factors
More informationConceptofcolinearity: a continuous sequence of nucleotides in DNA encodes a continuous sequence of amino acids in a protein
Translation Conceptofcolinearity: a continuous sequence of nucleotides in DNA encodes a continuous sequence of amino acids in a protein Para além do fenómeno do wobble, há que considerar Desvios ao código
More informationTranslation. A ribosome, mrna, and trna.
Translation The basic processes of translation are conserved among prokaryotes and eukaryotes. Prokaryotic Translation A ribosome, mrna, and trna. In the initiation of translation in prokaryotes, the Shine-Dalgarno
More informationBCH 4054 Spring 2001 Chapter 33 Lecture Notes
BCH 4054 Spring 2001 Chapter 33 Lecture Notes Slide 1 The chapter covers degradation of proteins as well. We will not have time to get into that subject. Chapter 33 Protein Synthesis Slide 2 Prokaryotic
More informationVideos. Bozeman, transcription and translation: https://youtu.be/h3b9arupxzg Crashcourse: Transcription and Translation - https://youtu.
Translation Translation Videos Bozeman, transcription and translation: https://youtu.be/h3b9arupxzg Crashcourse: Transcription and Translation - https://youtu.be/itsb2sqr-r0 Translation Translation The
More informationProtein Synthesis. Unit 6 Goal: Students will be able to describe the processes of transcription and translation.
Protein Synthesis Unit 6 Goal: Students will be able to describe the processes of transcription and translation. Types of RNA Messenger RNA (mrna) makes a copy of DNA, carries instructions for making proteins,
More informationومن أحياها Translation 2. Translation 2. DONE BY :Nisreen Obeidat
Translation 2 DONE BY :Nisreen Obeidat Page 0 Prokaryotes - Shine-Dalgarno Sequence (2:18) What we're seeing here are different portions of sequences of mrna of different promoters from different bacterial
More informationInformation Content in Genetics:
Information Content in Genetics: DNA, RNA and protein mrna translation into protein (protein synthesis) Francis Crick, 1958 [Crick, F. H. C. in Symp. Soc. Exp. Biol., The Biological Replication of Macromolecules,
More informationGENETICS - CLUTCH CH.11 TRANSLATION.
!! www.clutchprep.com CONCEPT: GENETIC CODE Nucleotides and amino acids are translated in a 1 to 1 method The triplet code states that three nucleotides codes for one amino acid - A codon is a term for
More informationMolecular Biology of the Cell
Alberts Johnson Lewis Raff Roberts Walter Molecular Biology of the Cell Fifth Edition Chapter 6 How Cells Read the Genome: From DNA to Protein Copyright Garland Science 2008 Figure 6-1 Molecular Biology
More informationEukaryotic vs. Prokaryotic genes
BIO 5099: Molecular Biology for Computer Scientists (et al) Lecture 18: Eukaryotic genes http://compbio.uchsc.edu/hunter/bio5099 Larry.Hunter@uchsc.edu Eukaryotic vs. Prokaryotic genes Like in prokaryotes,
More informationProkaryotic Regulation
Prokaryotic Regulation Control of transcription initiation can be: Positive control increases transcription when activators bind DNA Negative control reduces transcription when repressors bind to DNA regulatory
More informationLecture 9 Translation.
1 Translation Summary of important events in translation. 2 Translation Reactions involved in peptide bond formation. Lecture 9 3 Genetic code Three types of RNA molecules perform different but complementary
More informationBCMB Chapters 39 & 40 Translation (protein synthesis)
BCMB 3100 - Chapters 39 & 40 Translation (protein synthesis) Translation Genetic code trna Amino acyl trna Ribosomes Initiation Elongation Termination How is the nucleotide code translated into a protein
More informationBCMB Chapters 39 & 40 Translation (protein synthesis)
BCMB 3100 - Chapters 39 & 40 Translation (protein synthesis) Translation Genetic code trna Amino acyl trna Ribosomes Initiation Elongation Termination How is the nucleotide code translated into a protein
More informationTranslation and the Genetic Code
Chapter 11. Translation and the Genetic Code 1. Protein Structure 2. Components required for Protein Synthesis 3. Properties of the Genetic Code: An Overview 4. A Degenerate and Ordered Code 1 Sickle-Cell
More informationLesson Overview. Ribosomes and Protein Synthesis 13.2
13.2 The Genetic Code The first step in decoding genetic messages is to transcribe a nucleotide base sequence from DNA to mrna. This transcribed information contains a code for making proteins. The Genetic
More information9/11/18. Molecular and Cellular Biology. 3. The Cell From Genes to Proteins. key processes
Molecular and Cellular Biology Animal Cell ((eukaryotic cell) -----> compare with prokaryotic cell) ENDOPLASMIC RETICULUM (ER) Rough ER Smooth ER Flagellum Nuclear envelope Nucleolus NUCLEUS Chromatin
More informationRNA Processing: Eukaryotic mrnas
RNA Processing: Eukaryotic mrnas Eukaryotic mrnas have three main parts (Figure 13.8): 5! untranslated region (5! UTR), varies in length. The coding sequence specifies the amino acid sequence of the protein
More information9/2/17. Molecular and Cellular Biology. 3. The Cell From Genes to Proteins. key processes
Molecular and Cellular Biology Animal Cell ((eukaryotic cell) -----> compare with prokaryotic cell) ENDOPLASMIC RETICULUM (ER) Rough ER Smooth ER Flagellum Nuclear envelope Nucleolus NUCLEUS Chromatin
More informationTranslation Part 2 of Protein Synthesis
Translation Part 2 of Protein Synthesis IN: How is transcription like making a jello mold? (be specific) What process does this diagram represent? A. Mutation B. Replication C.Transcription D.Translation
More informationMultiple Choice Review- Eukaryotic Gene Expression
Multiple Choice Review- Eukaryotic Gene Expression 1. Which of the following is the Central Dogma of cell biology? a. DNA Nucleic Acid Protein Amino Acid b. Prokaryote Bacteria - Eukaryote c. Atom Molecule
More informationChapters 12&13 Notes: DNA, RNA & Protein Synthesis
Chapters 12&13 Notes: DNA, RNA & Protein Synthesis Name Period Words to Know: nucleotides, DNA, complementary base pairing, replication, genes, proteins, mrna, rrna, trna, transcription, translation, codon,
More informationNO!!!!! BCMB Chapters 39 & 40 Translation (protein synthesis) BCMB Chapters 39 & 40 Translation (protein synthesis)
BCMB 3100 - Chapters 39 & 40 Translation How is the nucleotide code translated into a protein code? translation DNA RNA protein transcription 5 UCA 3 NH 2 Ser COO -????? Adapter Molecule Hypothesis (Crick,
More informationWhat is the central dogma of biology?
Bellringer What is the central dogma of biology? A. RNA DNA Protein B. DNA Protein Gene C. DNA Gene RNA D. DNA RNA Protein Review of DNA processes Replication (7.1) Transcription(7.2) Translation(7.3)
More informationTRANSLATION: How to make proteins?
TRANSLATION: How to make proteins? EUKARYOTIC mrna CBP80 NUCLEUS SPLICEOSOME 5 UTR INTRON 3 UTR m 7 GpppG AUG UAA 5 ss 3 ss CBP20 PABP2 AAAAAAAAAAAAA 50-200 nts CYTOPLASM eif3 EJC PABP1 5 UTR 3 UTR m 7
More informationName: SBI 4U. Gene Expression Quiz. Overall Expectation:
Gene Expression Quiz Overall Expectation: - Demonstrate an understanding of concepts related to molecular genetics, and how genetic modification is applied in industry and agriculture Specific Expectation(s):
More informationProtein Synthesis. Unit 6 Goal: Students will be able to describe the processes of transcription and translation.
Protein Synthesis Unit 6 Goal: Students will be able to describe the processes of transcription and translation. Protein Synthesis: Protein synthesis uses the information in genes to make proteins. 2 Steps
More informationProtein synthesis I Biochemistry 302. February 17, 2006
Protein synthesis I Biochemistry 302 February 17, 2006 Key features and components involved in protein biosynthesis High energy cost (essential metabolic activity of cell Consumes 90% of the chemical energy
More informationUNIT 5. Protein Synthesis 11/22/16
UNIT 5 Protein Synthesis IV. Transcription (8.4) A. RNA carries DNA s instruction 1. Francis Crick defined the central dogma of molecular biology a. Replication copies DNA b. Transcription converts DNA
More informationThree types of RNA polymerase in eukaryotic nuclei
Three types of RNA polymerase in eukaryotic nuclei Type Location RNA synthesized Effect of α-amanitin I Nucleolus Pre-rRNA for 18,.8 and 8S rrnas Insensitive II Nucleoplasm Pre-mRNA, some snrnas Sensitive
More informationSeminar 1 Components and Regulation of Initiation of Translation
Institut für Biochemie und Molekulare Medizin Seminar 1 Components and Regulation of Initiation of Translation Michael Altmann FS 2015 Seminar 1 - What are the biol. consequences of mrna transport and
More informationUE Praktikum Bioinformatik
UE Praktikum Bioinformatik WS 08/09 University of Vienna 7SK snrna 7SK was discovered as an abundant small nuclear RNA in the mid 70s but a possible function has only recently been suggested. Two independent
More informationThe Eukaryotic Genome and Its Expression. The Eukaryotic Genome and Its Expression. A. The Eukaryotic Genome. Lecture Series 11
The Eukaryotic Genome and Its Expression Lecture Series 11 The Eukaryotic Genome and Its Expression A. The Eukaryotic Genome B. Repetitive Sequences (rem: teleomeres) C. The Structures of Protein-Coding
More informationStudent Learning Outcomes: Nucleus distinguishes Eukaryotes from Prokaryotes
9 The Nucleus Student Learning Outcomes: Nucleus distinguishes Eukaryotes from Prokaryotes Explain general structures of Nuclear Envelope, Nuclear Lamina, Nuclear Pore Complex Explain movement of proteins
More informationChapter 19 Overview. Protein Synthesis. for amino acid. n Protein Synthesis genetic info encoded in nucleic acids translated into standard amino acids
Chapter 19 Overview Protein Synthesis n Protein Synthesis genetic info encoded in nucleic acids translated into standard amino acids n Genetic code dictionary defining meaning for base sequence n Codon
More informationReview Article Insights from a Paradigm Shift: How the Poly(A)-Binding Protein Brings Translating mrnas Full Circle
New Journal of Science, Article ID 873084, 16 pages http://dx.doi.org/10.1155/2014/873084 Review Article Insights from a Paradigm Shift: How the Poly(A)-Binding Protein Brings Translating mrnas Full Circle
More informationL I F E S C I E N C E S
1a L I F E S C I E N C E S 5 -UUA AUA UUC GAA AGC UGC AUC GAA AAC UGU GAA UCA-3 5 -TTA ATA TTC GAA AGC TGC ATC GAA AAC TGT GAA TCA-3 3 -AAT TAT AAG CTT TCG ACG TAG CTT TTG ACA CTT AGT-5 NOVEMBER 7, 2006
More informationRegulation of Transcription in Eukaryotes
Regulation of Transcription in Eukaryotes Leucine zipper and helix-loop-helix proteins contain DNA-binding domains formed by dimerization of two polypeptide chains. Different members of each family can
More informationCONJOINT 541. Translating a Transcriptome at Specific Times and Places. David Morris. Department of Biochemistry
CONJOINT 541 Translating a Transcriptome at Specific Times and Places David Morris Department of Biochemistry http://faculty.washington.edu/dmorris/ Lecture 1 The Biology and Experimental Analysis of mrna
More informationChapter 12. Genes: Expression and Regulation
Chapter 12 Genes: Expression and Regulation 1 DNA Transcription or RNA Synthesis produces three types of RNA trna carries amino acids during protein synthesis rrna component of ribosomes mrna directs protein
More informationGENE REGULATION AND PROBLEMS OF DEVELOPMENT
GENE REGULATION AND PROBLEMS OF DEVELOPMENT By Surinder Kaur DIET Ropar Surinder_1998@ yahoo.in Mob No 9988530775 GENE REGULATION Gene is a segment of DNA that codes for a unit of function (polypeptide,
More informationComputational Cell Biology Lecture 4
Computational Cell Biology Lecture 4 Case Study: Basic Modeling in Gene Expression Yang Cao Department of Computer Science DNA Structure and Base Pair Gene Expression Gene is just a small part of DNA.
More informationRegulation of Gene Expression
Chapter 18 Regulation of Gene Expression Edited by Shawn Lester PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley
More informationMolecular Genetics Principles of Gene Expression: Translation
Paper No. : 16 Module : 13 Principles of gene expression: Translation Development Team Principal Investigator: Prof. Neeta Sehgal Head, Department of Zoology, University of Delhi Paper Coordinator: Prof.
More informationDegeneracy. Two types of degeneracy:
Degeneracy The occurrence of more than one codon for an amino acid (AA). Most differ in only the 3 rd (3 ) base, with the 1 st and 2 nd being most important for distinguishing the AA. Two types of degeneracy:
More informationmrna and Genetic code standard
Synthesis and Processing of the Proteome. (mrna and Genetic code: standard and variations; codon anti codon interactions), The role of trna in protein synthesis, Role of Ribosome in Protein synthesis (Ribosome
More informationCHAPTER 3. Cell Structure and Genetic Control. Chapter 3 Outline
CHAPTER 3 Cell Structure and Genetic Control Chapter 3 Outline Plasma Membrane Cytoplasm and Its Organelles Cell Nucleus and Gene Expression Protein Synthesis and Secretion DNA Synthesis and Cell Division
More informationLecture 3 Regulation of Initiation: Met-tRNA-binding
Institut für Biochemie und Molekulare Medizin Lecture 3 Regulation of Initiation: Met-tRNA-binding Michael Altmann FS 2010 Model of initiation eif4g eif4e AAA AAA PABP cap AAA AUG mrna eif4a eif4b ATP
More informationIntroduction to the Ribosome Overview of protein synthesis on the ribosome Prof. Anders Liljas
Introduction to the Ribosome Molecular Biophysics Lund University 1 A B C D E F G H I J Genome Protein aa1 aa2 aa3 aa4 aa5 aa6 aa7 aa10 aa9 aa8 aa11 aa12 aa13 a a 14 How is a polypeptide synthesized? 2
More informationIntroduction to molecular biology. Mitesh Shrestha
Introduction to molecular biology Mitesh Shrestha Molecular biology: definition Molecular biology is the study of molecular underpinnings of the process of replication, transcription and translation of
More informationQuiz answers. Allele. BIO 5099: Molecular Biology for Computer Scientists (et al) Lecture 17: The Quiz (and back to Eukaryotic DNA)
BIO 5099: Molecular Biology for Computer Scientists (et al) Lecture 17: The Quiz (and back to Eukaryotic DNA) http://compbio.uchsc.edu/hunter/bio5099 Larry.Hunter@uchsc.edu Quiz answers Kinase: An enzyme
More information(Lys), resulting in translation of a polypeptide without the Lys amino acid. resulting in translation of a polypeptide without the Lys amino acid.
1. A change that makes a polypeptide defective has been discovered in its amino acid sequence. The normal and defective amino acid sequences are shown below. Researchers are attempting to reproduce the
More informationATP. P i. trna. 3 Appropriate trna covalently bonds to amino acid, displacing AMP. Computer model Hydrogen bonds
mino acid attachment site nticodon Hydrogen bonds mino acid T i denosine i i denosine minoacyl-trn synthetase (enzyme) trn 1 ctive site binds the amino acid and T. 2 T loses two groups and bonds to the
More information4. Why not make all enzymes all the time (even if not needed)? Enzyme synthesis uses a lot of energy.
1 C2005/F2401 '10-- Lecture 15 -- Last Edited: 11/02/10 01:58 PM Copyright 2010 Deborah Mowshowitz and Lawrence Chasin Department of Biological Sciences Columbia University New York, NY. Handouts: 15A
More informationUNIT 6 PART 3 *REGULATION USING OPERONS* Hillis Textbook, CH 11
UNIT 6 PART 3 *REGULATION USING OPERONS* Hillis Textbook, CH 11 REVIEW: Signals that Start and Stop Transcription and Translation BUT, HOW DO CELLS CONTROL WHICH GENES ARE EXPRESSED AND WHEN? First of
More informationومن أحياها Translation 1. Translation 1. DONE BY :Maen Faoury
Translation 1 DONE BY :Maen Faoury 0 1 ومن أحياها Translation 1 2 ومن أحياها Translation 1 In this lecture and the coming lectures you are going to see how the genetic information is transferred into proteins
More information15.2 Prokaryotic Transcription *
OpenStax-CNX module: m52697 1 15.2 Prokaryotic Transcription * Shannon McDermott Based on Prokaryotic Transcription by OpenStax This work is produced by OpenStax-CNX and licensed under the Creative Commons
More informationBiophysics Lectures Three and Four
Biophysics Lectures Three and Four Kevin Cahill cahill@unm.edu http://dna.phys.unm.edu/ 1 The Atoms and Molecules of Life Cells are mostly made from the most abundant chemical elements, H, C, O, N, Ca,
More informationBiochemistry Prokaryotic translation
1 Description of Module Subject Name Paper Name Module Name/Title Dr. Vijaya Khader Dr. MC Varadaraj 2 1. Objectives 2. Understand the concept of genetic code 3. Understand the concept of wobble hypothesis
More informationProtein synthesis I Biochemistry 302. Bob Kelm February 23, 2004
Protein synthesis I Biochemistry 302 Bob Kelm February 23, 2004 Key features of protein synthesis Energy glutton Essential metabolic activity of the cell. Consumes 90% of the chemical energy (ATP,GTP).
More informationChapter 18: Control of Gene Expression
Chapter 18: Control of Gene Expression 海洋生物研究所 曾令銘 海事大樓 426 室分機 : 5326 Differential Expression of Genes Prokaryotes and eukaryotes precisely regulate gene expression in response to environmental conditions
More informationAdvanced Topics in RNA and DNA. DNA Microarrays Aptamers
Quiz 1 Advanced Topics in RNA and DNA DNA Microarrays Aptamers 2 Quantifying mrna levels to asses protein expression 3 The DNA Microarray Experiment 4 Application of DNA Microarrays 5 Some applications
More informationFlow of Genetic Information
presents Flow of Genetic Information A Montagud E Navarro P Fernández de Córdoba JF Urchueguía Elements Nucleic acid DNA RNA building block structure & organization genome building block types Amino acid
More informationLaith AL-Mustafa. Protein synthesis. Nabil Bashir 10\28\ First
Laith AL-Mustafa Protein synthesis Nabil Bashir 10\28\2015 http://1drv.ms/1gigdnv 01 First 0 Protein synthesis In previous lectures we started talking about DNA Replication (DNA synthesis) and we covered
More informationRegulation of gene expression. Premedical - Biology
Regulation of gene expression Premedical - Biology Regulation of gene expression in prokaryotic cell Operon units system of negative feedback positive and negative regulation in eukaryotic cell - at any
More informationComputational Biology: Basics & Interesting Problems
Computational Biology: Basics & Interesting Problems Summary Sources of information Biological concepts: structure & terminology Sequencing Gene finding Protein structure prediction Sources of information
More informationWhat Kind Of Molecules Carry Protein Assembly Instructions From The Nucleus To The Cytoplasm
What Kind Of Molecules Carry Protein Assembly Instructions From The Nucleus To The Cytoplasm What kind of reaction produces large molecules by linking small molecules? molecules carry protein assembly
More information