Molecular Biology and Biotechnology 5th Edition Molecular Biology and Biotechnology 5th Edition Edited by John M Walker School of Life Sciences, University of Hertfordshire, Hatfield, Hertfordshire AL10 9AB, UK Ralph Raply School of Life Sciences, University of Hertfordshire, Hatfield, Hertfordshire AL10 9AB, UK ISBN: 978-0-85404-125-1 A catalogue record for this book is available from the British Library r Royal Society of Chemistry, 2009 All rights reserved Apart from fair dealing for the purposes of research for non-commercial purposes or for private study, criticism or review, as permitted under the Copyright, Designs and Patents Act 1988 and the Copyright and Related Rights Regulations 2003, this publication may not be reproduced, stored or transmitted, in any form or by any means, without the prior permission in writing of The Royal Society of Chemistry or the copyright owner, or in the case of reproduction in accordance with the terms of licences issued by the Copyright Licensing Agency in the UK, or in accordance with the terms of the licences issued by the appropriate Reproduction Rights Organization outside the UK. Enquiries concerning reproduction outside the terms stated here should be sent to The Royal Society of Chemistry at the address printed on this page. Published by The Royal Society of Chemistry, Thomas Graham House, Science Park, Milton Road, Cambridge CB4 0WF, UK Registered Charity Number 207890 For further information see our website at www.rsc.org Preface One of the exciting aspects of being involved in the field of molecular biology is the ever-accelerating rate of progress, both in the develop- ment of new methodologies and in the practical applications of these methodologies. Indeed, such developments led to the idea of the first edition of Molecular Biology and Biotechnology and subsequent edi- tions have reflected the fast-moving nature of the area, not least this latest edition, which continues to reflect recent developments, with new chapters in developing areas such as genome technology, nano- biotechnology, regenerative medicine and biofuels. The first six chapters deal with the technology used in current mole- cular biology and biotechnology. These deal primarily with core nucleic acid techniques and protein expression through microbial and genetic detection methods. Further chapters address the huge advances made in gene and genome analysis and update the rapid advances into yeast analysis, which is providing very exciting insights into molecular path- ways. Molecular biology also continues to affect profoundly progress in biotechnology in areas such as vaccine development, use and application of monoclonal antibodies, clinical treatment and diagnosis, the pro- duction of transgenic animals, and many other areas of research relevant to the pharmaceutical industry. Chapters on all these areas have been retained and fully updated in this new edition and new chapters intro- duced on the applications of molecular biology in the areas of drug design and diseases, and regenerative medicine. In addition, we continue to ensure that biotechnology is not just considered at the gene level and full consideration continues to be given to applications and Molecular Biology and Biotechnology, 5th Edition Edited by John M Walker and Ralph Rapley r Royal Society of Chemistry 2009 Published by the Royal Society of Chemistry, www.rsc.org v vi Preface manufacturing, with chapters on downstream processing, biosensors, the applications of immobilised biocatalysts, and a new chapter on the developing area of biofuels. Our continued intention is that this book should primarily have a teaching function. As such, this book should prove of interest both to undergraduates studying for biological or chemical qualifications and to postgraduate and other scientific workers who need a sound introduc- tion to this ever rapidly advancing and expanding area. John M. Walker Ralph Rapley Contents Chapter 1 Basic Molecular Biology Techniques Ralph Rapley 1.1 Enzymes Used in Molecular Biology 1 1.2 Isolation and Separation of Nucleic Acids 3 1.2.1 Isolation of DNA 3 1.2.2 Isolation of RNA 5 1.3 Electrophoresis of Nucleic Acids 6 1.4 Restriction Mapping of DNA Fragments 8 1.5 Nucleic Acid Analysis Methods 8 1.5.1 DNA Blotting 9 1.5.2 RNA Blotting 10 1.6 Gene Probe Derivation 11 1.7 Labelling DNA Gene Probe Molecules 12 1.7.1 End Labelling of DNA Molecules 13 1.7.2 Random Primer Labelling 14 1.7.3 Nick Translation 15 1.8 The Polymerase Chain Reaction 15 References 18 Chapter 2 Molecular Cloning and Protein Expression Stuart Harbron 2.1 Introduction 20 2.2 Host-related Issues 21 2.3 Vectors 24 2.4 Expression Systems 30 2.4.1 The pET Expression System 30 2.4.2 The pBAD Expression System 33 Molecular Biology and Biotechnology, 5th Edition Edited by John M Walker and Ralph Rapley r Royal Society of Chemistry 2009 Published by the Royal Society of Chemistry, www.rsc.org vii viii Contents 2.5 Problems 34 2.6 Fusion Proteins 37 2.6.1 Solubility-enhancing Tags 37 2.6.2 Purification-facilitating Tags 40 2.6.3 HT Approaches 43 2.7 Other Hosts 44 2.8 Cell-free Systems 44 2.9 Conclusion 45 References 45 Chapter 3 Molecular Diagnostics Laura J. Tafe, Claudine L. Bartels, Joel A. Lefferts and Gregory J. Tsongalis 3.1 Introduction 51 3.2 Technologies 52 3.3 The Infectious Disease Paradigm 53 3.4 Genetics 55 3.5 Hematology 59 3.6 Oncology 62 3.7 Pharmacogenomics 65 3.8 Conclusion 71 References 71 Chapter 4 Molecular Microbial Diagnostics Karl-Henning Kalland 4.1 Introduction 76 4.2 Classical Microbiological Diagnosis 78 4.3 Sample Collection and Nucleic Acid Purification 79 4.3.1 Sample Collection and Transport 79 4.3.2 Extraction of Nucleic Acids 80 4.3.3 Manual Extraction of Nucleic Acids 81 4.3.4 Automated Extraction of Nucleic Acids 81 4.4 Nucleic Acid Amplification Techniques 81 4.4.1 Polymerase Chain Reaction (PCR) 81 4.4.2 The Contamination Problem 82 4.4.3 Reverse PCR – cDNA Synthesis 82 4.4.4 Nested PCR 83 4.4.5 Real-time PCR 83 4.4.6 Visualisation of Real-time PCR Amplification 84 4.4.7 Real-time PCR Equipment 86 4.4.8 Real-time Quantitative PCR 86 4.4.9 Determination of ‘Viral Load’ in Clinical Microbiology 87 Contents ix 4.4.10 Internal Controls in Microbiological Real-time qPCR 87 4.4.11 Multiplex Real-time PCR 88 4.4.12 Melting Curve Analysis 88 4.4.13 Genotyping 89 4.5 Other Techniques Used in Clinical Microbiology 90 4.5.1 Hybridisation Techniques 90 4.5.2 Nucleic Acid-based Typing of Bacteria 93 4.5.3 Pyrosequencing 97 4.5.4 TaqMan Low-density Arrays (TLDAs) 98 4.6 Selected Examples of Clinical Nucleic Acid-based Diagnosis 99 4.6.1 Central Nervous System (CNS) Disease 99 4.6.2 Respiratory Infections 100 4.6.3 Hepatitis 100 4.6.4 Gastroenteritis 101 4.6.5 Sexually Transmitted Diseases 102 4.6.6 HIV Infection and AIDS 103 4.6.7 Bacterial Antibiotic Resistance and Virulence Factor Genes 104 4.7 Conclusion and Future Challenges 106 References 107 Chapter 5 Genes and Genomes David B. Whitehouse 5.1 Introduction 112 5.1.1 Background 112 5.2 Key DNA Technologies 115 5.2.1 Molecular Cloning Outline 115 5.2.2 Cloning Vectors 115 5.2.3 The Cloning Process 118 5.2.4 DNA Libraries 120 5.3 The Polymerase Chain Reaction (PCR) 122 5.3.1 Steps in the PCR 123 5.3.2 PCR Primer Design and Bioinformatics 125 5.3.3 Reverse Transcriptase PCR (RT-PCR) 126 5.3.4 Quantitative or Real-time PCR 126 5.4 DNA Sequencing 128 5.4.1 Dideoxynucleotide Chain Terminators 129 5.4.2 Sequencing Double-stranded DNA 129 5.4.3 PCR Cycle Sequencing 130 5.4.4 Automated DNA Sequencing 130 5.4.5 Pyrosequencing 131 x Contents 5.5 Genome Analysis 131 5.5.1 Mapping and Identifying Genes 131 5.5.2 Tools for Genetic Mapping 132 5.5.3 Mutation Detection 139 5.6 Genome Projects Background 144 5.6.1 Mapping and Sequencing Strategies 144 5.7 Gene Discovery and Localisation 149 5.7.1 Laboratory Approaches 149 5.7.2 Bioinformatics Approaches 150 5.8 Future Directions 152 References 153 Chapter 6 The Biotechnology and Molecular Biology of Yeast Brendan P. G. Curran and Virginia C. Bugeja 6.1 Introduction 159 6.2 The Production of Heterologous Proteins by Yeast 161 6.2.1 The Yeast Hosts 161 6.2.2 Assembling and Transforming Appropriate DNA Constructs into the Hosts 162 6.2.3 Ensuring Optimal Expression of the Desired Protein 165 6.3 From Re-engineering Genomes to Constructing Novel Signal and Biochemical Pathways 170 6.3.1 Large-scale Manipulation of Mammalian and Bacterial DNA 170 6.3.2 Novel Biological Reporter Systems 176 6.3.3 Novel Biochemical Products Include Humanised EPO 179 6.4 Yeast as a Paradigm of Eukaryotic Cellular Biology 187 6.4.1 Genomic Insights 187 6.4.2 Transcriptomes, Proteomes and Metabolomes and Drug Development 188 6.4.3 Systems Biology 190 6.5 Future Prospects 191 References 191 Chapter 7 Metabolic Engineering Stefan Kempa, Dirk Walther, Oliver Ebenhoeh and Wolfram Weckwerth 7.1 Introduction 196 7.2 Theoretical Approaches for Metabolic Networks 197 7.2.1 Kinetic Modelling 198 Contents xi 7.2.2 Metabolic Control Analysis (MCA), Elementary Flux Modes (EFM) and Flux-balance Analysis (FBA) 202 7.3 Experimental Approaches for Metabolic Engineering 208 7.3.1 Tools for Metabolic Engineering 208 7.3.2 Metabolomics 209 7.3.3 Metabolomics in the Context of Metabolic Engineering 210 7.4 Examples in Metabolic Engineering 211 7.4.1 Metabolic Engineering of Plants 211 7.4.2 Acetate Metabolism and Recombinant Protein Synthesis in E.