Preface ....................................................... xxi
Acknowledgments ............................................. xxiii
Cold Spring Harbor Protocols Online ........................... xxv
Quotation Credits ........................................... xxvii
Volume 2
Chapter 8
In Vitro Amplification of DNA by the Polymerase Chain
Reaction ...................................................... 8.1
INTRODUCTION PROTOCOLS
1 The Basic Polymerase Chain Reaction ....................... 8.18
2 Purification of PCR Products in Preparation for Cloning ... 8.25
3 Removal of Oligonucleotides and Excess dNTPs from
Amplified DNA by Ultrafiltration .......................... 8.27
Introduction to Cloning PCR Products (Protocols 4-7) ...... 8.30
4 Blunt-end Cloning of PCR Products ......................... 8.32
5 Cloning PCR Products into T Vectors ....................... 8.35
6 Cloning PCR Products by Addition of Restriction Sites to
the Termini of Amplified DNA .............................. 8.37
7 Genetic Engineering with PCR .............................. 8.42
8 Amplification of cDNA Generated by Reverse Transcription
of mRNA (RT-PCR) .......................................... 8.46
9 Rapid Amplification of 5' cDNA Ends (5'-RACE) ............. 8.54
10 Rapid Amplification of 3' cDNA Ends (3'-RACE) ............. 8.61
11 Mixed Oligonucleotide-primed Amplification of cDNA
(MOPAC) ................................................... 8.66
12 Rapid Characterization of DNAs Cloned in Prokaryotic
Vectors ................................................... 8.72
· Additional Protocol: Screening Yeast Colonies by PCR .... 8.75
·Additional Protocol: Screening Bacteriophage λ
Libraries ................................................ 8.76
13 Long PCR .................................................. 8.77
14 Inverse PCR ............................................... 8.81
15 Quantitative PCR .......................................... 8.86
16 Differential Display-PCR (DD-PCR) ......................... 8.96
INFORMATION PANELS
Multiplex PCR ............................................... 8.107
Taq DNA Polymerase .......................................... 8.108
Hot Start PCR ............................................... 8.110
Ribonuclease H .............................................. 8.111
Terminal Transferase ........................................ 8.111
Touchdown PCR ............................................... 8.112
Use of Inosine in Degenerate Pools of Oligonucleotides
Used for PCR ................................................ 8.113
Universal Primers ........................................... 8.113
Chapter 9
Preparation of Radiolabeled DNA and RNA Probes ................ 9.1
INTRODUCTION PROTOCOLS
1 Random Priming: Radiolabeling of Purified DNA Fragments
by Extension of Random Oligonucleotides .................... 9.4
2 Random Priming: Radiolabeling of DNA by Extension of
Random Oligonucleotides in the Presence of Melted
Agarose .................................................... 9.9
·Nick Translation: An Historical Note ..................... 9.12
3 Radiolabeling of DNA Probes by the Polymerase Chain
Reaction .................................................. 9.14
·Additional Protocol: Asymmetric Probes ................... 9.18
4 Synthesis of Single-stranded DNA Probes of Defined
Length from Bacteriophage M13 Templates ................... 9.19
5 Synthesis of Single-stranded DNA Probes of Heterogeneous
Length from Bacteriophage M13 Templates ................... 9.25
6 Synthesis of Single-stranded RNA Probes by In Vitro
Transcription ............................................. 9.29
·Additional Protocol: Using PCR to Add Promoters for
Bacteriophage-encoded RNA Polymerases to Fragments of
DNA ...................................................... 9.36
7 Synthesis of cDNA Probes from mRNA Using Random
Oligonucleotide Primers ................................... 9.38
8 Synthesis of Radiolabeled, Subtracted cDNA Probes Using
Oligo(dT) as a Primer ..................................... 9.41
9 Radiolabeling of Subtracted cDNA Probes by Random
Oligonucleotide Extension ................................. 9.46
10 Labeling 3' Termini of Double-stranded DNA Using the
Klenow Fragment off. coli DNA Polymerase I ................ 9.51
11 Labeling 3' Termini of Double-stranded DNA with
Bacteriophage T4 DNA Polymerase ........................... 9.57
12 End Labeling Protruding 3' Termini of Double-stranded
DNA with [α-32P]Cordycepin 5' Triphosphate or
[α-32P]dideoxy ATP ........................................ 9.60
13 Dephosphorylation of DNA Fragments with Alkaline
Phosphatase ............................................... 9.62
14 Phosphorylation of DNA Molecules with Protruding 5'-
Hydroxyl Termini .......................................... 9.66
15 Phosphorylation of DNA Molecules with Dephosphorylated
Blunt Ends or Recessed 5' Termini ......................... 9.70
16 Phosphorylation of DNA Molecules with Protruding 5'
Termini by the Exchange Reaction .......................... 9.73
INFORMATION PANELS
Nonradioactive Labeling of Nucleic Acids ..................... 9.76
E. coli DNA Polymerase I and the Klenow Fragment ............. 9.82
In Vitro Transcription Systems ............................... 9.87
Isolating Differentially Expressed cDNAs by Differential
Screening and Cloning ........................................ 9.89
Alkaline Phosphatase ......................................... 9.92
Chapter 10
Working with Synthetic Oligonucleotide Probes ................ 10.1
INTRODUCTION PROTOCOLS
1 Purification of Synthetic Oligonucleotides by
Polyacrylamide Gel Electrophoresis ....................... 10.11
2 Phosphorylating the 5'Termini of Oligonucleotides ........ 10.17
3 Purification of Radiolabeled Oligonucleotides by
Precipitation with Ethanol ............................... 10.20
4 Purification of Radiolabeled Oligonucleotides by
Precipitation with Cetylpyridinium Bromide ............... 10.22
5 Purification of Radiolabeled Oligonucleotides by Size-
exclusion Chromatography ................................. 10.25
6 Purification of Radiolabeled Oligonucleotides by
Chromatography on a Sep-Pak C18 Column ................... 10.28
7 Labeling of Synthetic Oligonucleotides Using the Klenow
Fragment of E. coli DNA Polymerase I ..................... 10.30
8 Hybridization of Oligonucleotide Probes in Aqueous
Solutions: Washing in Buffers Containing Quaternary
Ammonium Salts ........................................... 10.35
9 Empirical Measurement of Melting Temperature ............. 10.38
INFORMATION PANELS
Oligonucleotide Synthesis ................................... 10.42
Melting Temperatures ........................................ 10.47
Methods Used to Purify Synthetic Oligonucleotides ........... 10.48
Chapter 11
Preparation of cDNA Libraries and Gene Identification ........ 11.1
INTRODUCTION PROTOCOLS
1 Construction of cDNA Libraries ........................... 11.38
Stage 1: Synthesis of First-strand cDNA Catalyzed by
Reverse Transcriptase ........................... 11.39
Stage 2: Second-strand Synthesis ......................... 11.44
Stage 3: Methylation of cDNA ............................. 11.49
Stage 4: Attachment of Linkers or Adaptors ............... 11.52
Stage 5: Fractionation of cDNA by Gel Filtration
through Sepharose CL-4B ......................... 11.57
Stage 6: Ligation of cDNA to Bacteriophage λ Arms ........ 11.60
·Alternative Protocol: Ligation of cDNA into a Plasmid
Vector .................................................. 11.64
·Additional Protocol: Amplification of cDNA Libraries .... 11.65
2 Construction and Screening of Eukaryotic Expression
Libraries ................................................ 11.68
Stage 1: Construction of cDNA Libraries in Eukaryotic
Expression Vectors .............................. 11.69
Stage 2: Screening cDNA Libraries Constructed in
Eukaryotic Expression Vectors ................... 11.75
3 Exon Trapping and Amplification .......................... 11.80
Stage 1: Construction of the Library ..................... 11.82
Stage 2: Electroporation of the Library into COS-7
Cells ........................................... 11.87
Stage 3: Harvesting the mRNA ............................. 11.89
Stage 4: Reverse Transcriptase-PCR ....................... 11.91
Stage 5: Analysis of Clones .............................. 11.96
4 Direct Selection of cDNAs with Large Genomic DNA
Clones ................................................... 11.98
INFORMATION PANELS
Commercial Kits for cDNA Synthesis and Library
Construction ............................................... 11.109
Mo-MLV Reverse Transcriptase ............................... 11.111
Homopolymeric Tailing ...................................... 11.112
λgtl0 and λgt11 ............................................ 11.113
Constructing cDNA Libraries from Small Numbers of Cells .... 11.114
In Vitro Packaging ......................................... 11.115
COS Cells .................................................. 11.116
Biotin ..................................................... 11.117
Magnetic Beads ............................................. 11.120
Ligation-independent Cloning ............................... 11.123
Chapter 12
DNA Sequencing ............................................... 12.1
INTRODUCTION PROTOCOLS ....................................... 12.1
1 Generation of a Library of Randomly Overlapping DNA
Inserts .................................................. 12.10
·Alternative Protocol: Preparation of Small Numbers of
Single-stranded DNA Templates from Bacteriophage M13 .... 12.23
·Additional Protocol: Preparation of Dephosphorylated
Blunt-ended Bacteriophage M13 Vector DNA for Shotgun
Cloning ................................................. 12.24
2 Preparing Denatured Double-stranded DNA Templates for
Sequencing by Dideoxy-mediated Chain Termination ......... 12.26
·Additional Protocol: Rapid Denaturation of Double-
stranded DNA ............................................ 12.30
·Additional Protocol: Purification of Plasmid DNA from
Small-scale Cultures by Precipitation with PEG .......... 12.31
3 Dideoxy-mediated Sequencing Reactions Using
Bacteriophage T7 DNA Polymerase (Sequenase) .............. 12.32
4 Dideoxy-mediated Sequencing Reactions Using the Klenow
Fragment of E. coli MAO DNA Polymerase I and Single-
stranded DNA Templates ................................... 12.40
5 Dideoxy-mediated Sequencing of DNA Using Taq DNA
Polymerase ............................................... 12.45
6 Cycle Sequencing: Dideoxy-mediated Sequencing Reactions
Using PCR and End-labeled Primers ........................ 12.51
·Additional Protocol: Cycle Sequencing Reactions Using
PCR and Internal Labeling with [α-32P]dNTPs ............. 12.60
7 Chemical Sequencing ...................................... 12.61
·Alternative Protocol: Rapid Maxam-Gilbert Sequencing .... 12.70
·Additional Protocol: Preparation of End-labeled DNA for
Chemical Sequencing ..................................... 12.73
8 Preparation of Denaturing Polyacrylamide Gels ............ 12.74
9 Preparation of Denaturing Polyacrylamide Gels
Containing Formamide ..................................... 12.81
10 Preparation of Electrolyte Gradient Gels ................. 12.83
11 Loading and Running DNA-sequencing Gels .................. 12.85
12 Autoradiography and Reading of Sequencing Gels ........... 12.90
INFORMATION PANELS
Automated DNA Sequencing ................................. 12.94
Microliter Plates ....................................... 12.100
The Klenow Fragment of E. coli DNA Polymerase I ......... 12.101
Preparation of Stock Solutions of Oligonucleotide
Primers for DNA Sequencing .............................. 12.103
Sequenase ............................................... 12.104
Conventional Chain-termination Sequencing of PCR-
amplified DNA ........................................... 12.106
Preparation of Stock Solutions of dNTPs and ddNTPs for
DNA Sequencing .......................................... 12.107
Glycerol in DNA Sequencing Reactions .................... 12.108
Compressions in DNA Sequencing Gels ..................... 12.109
7-deaza-dGTP ............................................ 12.111
Dichlorodimethylsilane .................................. 12.112
Reading an Autoradiograph ............................... 12.113
Electrical Mobility of DNA .............................. 12.114
Chapter 13
Mutagenesis .................................................. 13.1
INTRODUCTION PROTOCOLS
1 Preparation of Uracil-containing Single-stranded
Bacteriophage M13 DNA .................................... 13.11
2 Oligonucleotide-directed Mutagenesis of Single-stranded
DNA ...................................................... 13.15
3 In Vitro Mutagenesis Using Double-stranded DNA
Templates: Selection of Mutants with Dpnl ................ 13.19
4 Oligonucleotide-directed Mutagenesis by Elimination of
a Unique Restriction Site (USE Mutagenesis) .............. 13.26
5 Rapid and Efficient Site-directed Mutagenesis by
the Single-tube Megaprimer PCR Method ..................... 13.31
6 Site-specific Mutagenesis by Overlap Extension ........... 13.36
7 Screening Recombinant Clones for Site-directed
Mutagenesis by Hybridization to Radiolabeled
Oligonucleotides ......................................... 13.40
·Alternative Protocol: Screening Phagemid-containing
Bacterial Colonies by Hybridization to Radiolabeled
Oligonucleotides ........................................ 13.47
·Alternative Protocol: Detection of Defined Mutants by
PCR ..................................................... 13.48
8 Detection of Mutations by Single-strand Conformational
Polymorphism and Heteroduplex Analysis ................... 13.49
9 Generation of Sets of Nested Deletion Mutants with
Exonuclease III .......................................... 13.57
10 Generation of Bidirectional Sets of Deletion Mutants by
Digestion with BAL 31 Nuclease ........................... 13.62
INFORMATION PANELS
BAL 31 ...................................................... 13.68
Exonuclease III ............................................. 13.72
Linker-scanning Mutagenesis ................................. 13.75
Random Mutagenesis .......................................... 13.78
Alanine-scanning Mutagenesis ................................ 13.81
Mutagenic Oligonucleotides .................................. 13.82
Selecting against Wild-type DNA in Site-directed
Mutagenesis ................................................. 13.84
N6-methyladenine, Dam Methylase, and Methylation-
sensitive Restriction Enzymes ............................... 13.87
Commercial Kits for Site-directed Mutagenesis ............... 13.89
Glycerol .................................................... 13.90
Mutation Detection .......................................... 13.91
Chapter 14
Screening Expression Libraries ............................... 14.1
INTRODUCTION PROTOCOLS
1 Screening Expression Libraries Constructed in
Bacteriophage λ Vectors ................................... 14.4
2 Screening Expression Libraries Constructed in Plasmid
Vectors .................................................. 14.14
3 Removal of Cross-reactive Antibodies from Antiserum:
Pseudoscreening .......................................... 14.23
·Alternative Protocol: Adsorbing Antibodies with Lysates
of Bacteriophage-infected Cells ......................... 14.25
4 Removal of Cross-reactive Antibodies from Antiserum:
Incubation with E. coli Lysate ........................... 14.26
5 Removal of Cross-reactive Antibodies from Antiserum:
Affinity Chromatography .................................. 14.28
6 Identifying DNA-binding Proteins in Bacteriophage λ
Expression Libraries ..................................... 14.31
7 Preparation of Lysates Containing Fusion Proteins
Encoded by Bacteriophage λ Lysogens: Lysis of Bacterial
Colonies ................................................. 14.37
8 Preparation of Lysates Containing Fusion Proteins
Encoded by Bacteriophage λ: Lytic Infections on Agar
Plates ................................................... 14.41
9 Preparation of Lysates Containing Fusion Proteins
Encoded by Bacteriophage λ: Lytic Infections in Liquid
Medium ................................................... 14.44
INFORMATION PANELS
Plasmid and Bacteriophage λ Expression Vectors .............. 14.47
Using Antibodies in Immunological Screening ................. 14.50
INDEX 1.1 ................................................... 14.50
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