Preface |
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vii | |
Editors |
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ix | |
Contributors |
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xi | |
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SECTION I Drug-Receptor Interactions |
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Chapter 1 Classical Approaches to the Study of Drug-Receptor Interactions |
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3 | (76) |
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4 | (2) |
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4 | (2) |
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1.2 Modeling the Relationship between Agonist Concentration and Tissue Response |
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6 | (10) |
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1.2.1 Relationship between Ligand Concentration and Receptor Occupancy |
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6 | (2) |
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1.2.2 Realationship between Receptor Occupancy and Tissue Response |
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8 | (3) |
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1.2.3 The Distinction between Agonish Binding and Receptor Activation |
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11 | (5) |
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1.3 The Time Course of Changes in Receptor Occupancy |
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16 | (4) |
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16 | (1) |
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1.3.2 Increases in Occupancy |
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17 | (2) |
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19 | (1) |
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20 | (19) |
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1.4.1 Introduction: Early Concepts |
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20 | (2) |
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1.4.2 Expressing the Maximal Response to a Partial Agonist: Intrinsic Activity and Efficacy |
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22 | (3) |
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1.4.3 The Interpretation of Partial Agonism in Terms of Events at Individual Receptors |
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25 | (1) |
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1.4.4 The del Castillo-Katz Mechanism: The Relationship between Agonist Concentration and the Fraction of Receptors in an Active Form |
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26 | (2) |
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1.4.5 The del Castillo-Katz Mechanism: The Interpretation of Efficacy for Ligand-Gated Ion Channels |
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28 | (2) |
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1.4.6 The Interpretation of Efficacy for Receptors Acting through G-Proteins |
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30 | (1) |
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1.4.7 Constitutively Active Receptors, Inverse Agonists |
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31 | (3) |
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1.4.8 Attempting to Estimate the Efficacy of a Partial Agonist from the End Response of a Complex Tissue |
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34 | (5) |
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1.5 Inhibitory Actions at Receptors: Surmountable Antagonism |
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39 | (12) |
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1.5.1 Overview of Drug Antagonism |
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39 | (1) |
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1.5.1.1 Mechanisms Not Involving the Receptor Macromolecule through Which the Agonist Acts |
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39 | (1) |
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1.5.1.2 Mechanisms Involving the Receptor Macromolecule |
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40 | (1) |
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1.5.2 Reversible Competitive Antagonism |
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41 | (5) |
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1.5.3 Practical Applications of Studies of Reversible Competitive Antagonism |
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46 | (2) |
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1.5.4 Complications in the Study of Reversible Competitive Antagonism |
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48 | (1) |
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48 | (2) |
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50 | (1) |
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1.6 Inhibitory Actions at Receptors: Insurmountable Antagonism |
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51 | (17) |
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1.6.1 Irreversible Competitive Antagonism |
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51 | (1) |
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1.6.2 Some Applications of Irreversible Antagonists |
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52 | (1) |
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1.6.2.1 Labeling Receptors |
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52 | (1) |
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1.6.2.2 Counting Receptors |
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52 | (1) |
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1.6.2.3 Receptor Protection Experiments |
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52 | (1) |
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1.6.3 Effect of an Irreversible Comptitive Antagonist on the Response to an Agonist |
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53 | (2) |
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1.6.4 Can an Irreversible Competitive Antagonist Be Used to Find the Affinity of an Agonist? |
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55 | (2) |
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1.6.5 Reversible Noncompetitive (Allotopic) Antagonism |
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57 | (2) |
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1.6.5.1 Open Channel Block |
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59 | (2) |
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1.6.5.2 Co-Agonists, Allotopic Activators |
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61 | (1) |
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1.6.6 A More General Model for the Action of Agonists, Co-Agonists, and Antagonists |
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61 | (7) |
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68 | (1) |
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68 | (1) |
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68 | (7) |
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75 | (4) |
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SECTION II Molecular Structure of Receptors |
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Chapter 2 Structure and Function of 7-TM G-Protein Coupled Receptors |
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79 | (10) |
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79 | (3) |
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80 | (2) |
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2.1.2 G-Protein Independent Signaling |
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82 | (1) |
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2.2 GPCR Transmembrane Topology and Tertiary Structure |
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82 | (1) |
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2.2.1 Electron Microscopy and X-Ray Crystallography |
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82 | (1) |
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2.2.2 Structure-Function Information for GPCRs |
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82 | (1) |
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2.2.2.1 Ligand Binding Domain |
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82 | (1) |
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2.2.2.2 G-Protein Coupling |
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83 | (1) |
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2.3 Classification of GPCRs |
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83 | (2) |
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2.3.1 Group A: Rhodopsin-Like 7-TM Receptors |
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83 | (1) |
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2.3.2 Group B: Glucagon, VIP, and Calcitonin Family |
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84 | (1) |
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2.3.3 Group C: Metabotropic Glutamate, GABAB, and Chemosensor (Ca2+) Receptors |
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84 | (1) |
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84 | (1) |
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2.4 Receptor Dimerization---Quaternary Structure |
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85 | (1) |
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2.5 Receptor Desensitization |
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85 | (1) |
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2.6 Constitutively Active Receptors |
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86 | (1) |
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86 | (1) |
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86 | (3) |
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Chapter 3 The Structure of Ligand-Gated Ion Channels |
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89 | (22) |
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89 | (1) |
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90 | (7) |
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90 | (2) |
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3.2.2 The Three-Dimensional Structure |
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92 | (1) |
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92 | (3) |
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3.2.4 The Ligand Binding Site |
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95 | (2) |
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3.3 The Excitatory Amino Acids Receptors---3-TM Receptors |
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97 | (8) |
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98 | (1) |
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98 | (1) |
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3.3.1.2 Kainate Receptors |
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99 | (1) |
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99 | (1) |
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100 | (1) |
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100 | (1) |
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3.3.3 The Extracellular Part of the Receptor: The Agonist Binding Site |
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101 | (3) |
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3.3.4 Posttranscriptional Modifications |
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104 | (1) |
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104 | (1) |
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3.3.6 The Intracellular Side of the Receptor |
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105 | (1) |
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3.4 ATP Receptors---2-TM Receptors |
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105 | (1) |
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106 | (1) |
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107 | (2) |
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109 | (2) |
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Chapter 4 Molecular Structure of Receptor Tyrosine Kinases |
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111 | (28) |
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111 | (3) |
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4.2 Conserved Substructures that Control Protein Kinase Activity |
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114 | (1) |
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115 | (1) |
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4.4 The Epidermal Growth Factor Receptor |
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115 | (4) |
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4.4.1 Extracellular Segment |
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115 | (2) |
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4.4.2 Intracellular Segment |
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117 | (2) |
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119 | (4) |
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4.5.1 Extracellular Segment |
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119 | (1) |
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4.5.2 Intracellular Segment |
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120 | (2) |
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4.5.3 Tyrosine Phosphatase PTP1B Controls the Phosphorylation State of the Insulin Receptor |
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122 | (1) |
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4.6 Fibroblast Growth Factor |
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123 | (3) |
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4.6.1 Extracellular Segment |
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123 | (2) |
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4.6.2 Intracellular Segment |
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125 | (1) |
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4.7 Erythropoietin Receptor |
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126 | (3) |
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4.7.1 Extracellular Segment |
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127 | (1) |
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4.7.2 Intracellular Segment |
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127 | (2) |
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4.8 Receptor Tyrosine Kinases as Targets for Cancer Therapy |
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129 | (6) |
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131 | (1) |
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4.8.2 The Tyrosine Kinase Inhibitor Approach |
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131 | (3) |
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4.8.3 Future Developments |
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134 | (1) |
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135 | (4) |
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SECTION III Ligand-Binding Studies of Receptors |
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Chapter 5 Direct Measurement of Drug Binding to Receptors |
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139 | (30) |
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140 | (2) |
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5.1.1 Objectives of Ligand-Binding Studies |
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140 | (1) |
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141 | (1) |
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5.1.3 Specificity of Binding |
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141 | (1) |
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5.2 Types of Ligand-Binding Experiments |
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142 | (10) |
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5.2.1 Saturation Experiments |
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142 | (1) |
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5.2.1.1 Multiple Binding Sites |
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143 | (1) |
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5.2.1.2 Interacting Sites |
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143 | (1) |
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144 | (2) |
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146 | (1) |
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5.2.2.1 Measurement of the Dissociation Rate Constant, k-1 |
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146 | (1) |
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5.2.2.2 Measurement of the Association Rate Constant, k+1 |
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147 | (1) |
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5.2.3 Competition Experiments |
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147 | (2) |
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5.2.3.1 Relationship between K1 and IC50 |
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149 | (1) |
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5.2.3.2 Multiple Binding Sites |
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149 | (1) |
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5.2.3.3 G-Protein Linked Receptors |
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149 | (1) |
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5.2.4 Retardation Experiments |
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150 | (2) |
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5.3 Practical Aspects of Ligand-Binding Studies |
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152 | (5) |
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5.3.1 Receptor Preparations |
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152 | (1) |
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153 | (1) |
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153 | (1) |
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5.3.2.2 Fluorescently Labeled Ligands |
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154 | (1) |
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5.3.3 Incubation Conditions |
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154 | (1) |
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5.3.3.1 Incubation Medium |
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154 | (1) |
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155 | (1) |
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5.3.3.3 Duration of Incubation |
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156 | (1) |
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156 | (1) |
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5.3.4 Methods of Separating Bound from Free Ligands |
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156 | (1) |
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156 | (1) |
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156 | (1) |
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5.3.5 Determination of Nonspecific Binding |
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157 | (1) |
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5.4 Analysis of Binding Data |
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157 | (3) |
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157 | (1) |
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5.4.2 Lineweaver-Burk Plot |
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158 | (1) |
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158 | (1) |
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5.4.4 Analysis of Competition Experiments |
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158 | (2) |
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5.4.5 Nonlinear Least Squares Methods of Data Analysis |
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160 | (1) |
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5.5 Relevance of Results from Binding Studies |
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160 | (1) |
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161 | (2) |
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163 | (3) |
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166 | (3) |
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SECTION IV Transduction of the Receptor Signal |
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Chapter 6 Receptors Linked to Ion Channels: Mechanisms of Activation and Block |
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169 | (30) |
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170 | (1) |
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6.1.1 The Response to Receptor Activation |
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170 | (1) |
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170 | (9) |
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6.2.1 Evidence for Nonidentical Agonist Binding Sites |
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171 | (1) |
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6.2.2 Application of the Two-Binding-Site Mechanism |
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172 | (1) |
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6.2.3 Hill Coefficients and Cooperativity |
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172 | (2) |
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6.2.4 Hill Coefficient for Homomeric Receptor Channels |
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174 | (1) |
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6.2.5 Receptor Desensitization |
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174 | (2) |
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6.2.6 Determination of the Popen Curve |
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176 | (2) |
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6.2.7 Analysis of Single-Channel Recordings |
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178 | (1) |
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6.2.8 Analysis of Bursts of Ion Channel Openings |
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178 | (1) |
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6.3 Antagonism of Ion Channel Receptors |
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179 | (13) |
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6.3.1 Competitive Antagonism and the Schild Equation |
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179 | (3) |
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182 | (1) |
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6.3.3 A Mechanism for Channel Block |
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183 | (1) |
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6.3.4 Macroscopic Kinetics: Relaxations, Synaptic Currents, and Noise |
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183 | (2) |
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6.3.5 Channel Block at Equilibrium |
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185 | (1) |
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6.3.6 Single-Channel Analysis of Channel Block |
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185 | (1) |
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185 | (2) |
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187 | (1) |
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6.3.6.3 Blockage Frequency |
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187 | (1) |
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6.3.6.4 Bursts of Openings |
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187 | (1) |
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188 | (1) |
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6.3.7 The Time Scale of Channel Block |
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188 | (1) |
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6.3.8 Use Dependence of Channel Blockers |
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188 | (1) |
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6.3.9 Voltage Dependence of Channel Block |
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189 | (3) |
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192 | (1) |
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192 | (2) |
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194 | (2) |
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196 | (3) |
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199 | (26) |
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7.1 The Discovery of G-Proteins |
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199 | (1) |
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7.2 Structure of G-Proteins |
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200 | (1) |
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201 | (2) |
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203 | (1) |
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7.4 Perturbing the G-Protein Cycle |
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203 | (2) |
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7.5 Experimental Evidence for G-Protein Coupling in Receptor Action |
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205 | (2) |
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205 | (2) |
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7.5.2 Use of GTP Analogs and Toxins |
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207 | (1) |
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7.6 Measurement of G-Protein Activation |
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207 | (1) |
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207 | (1) |
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7.8 Receptor-G-Protein Coupling |
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208 | (3) |
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7.9 G-Protein-Effector Coupling |
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211 | (5) |
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7.10 Regulation of G-Protein Signaling |
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216 | (2) |
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216 | (1) |
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7.10.2 Effectors as GTPase-Activating Proteins |
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217 | (1) |
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7.11 Kinetics of GPCR-Mediated Signals |
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218 | (5) |
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223 | (2) |
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Chapter 8 Signal Transduction through Protein Tyrosine Kinases |
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225 | (44) |
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8.1 Phosphorylation as a Switch in Cellular Functioning |
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225 | (1) |
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8.2 Growth Factors, Interleukins, Interferons, and Cytokines |
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226 | (1) |
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227 | (1) |
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8.4 Receptors that Contain Tyrosine Protein Kinases |
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227 | (20) |
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8.4.1 Dimerization and Transphosphorylation of Receptors Cause Their Activation |
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227 | (1) |
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8.4.2 Src Homology and PTB Domains and the Formation of Receptor Signaling Complexes |
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228 | (2) |
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8.4.3 Branching of the Signaling Pathway |
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230 | (1) |
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8.4.3.1 The Ras Signaling Pathway |
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230 | (8) |
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8.4.3.2 The PI 3-Kinase/PKB Signaling Pathway |
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238 | (8) |
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8.4.3.3 Direct Phosphorylation of STAT Transcription Factors |
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246 | (1) |
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8.5 Receptors That Associate with Tyrosine Protein Kinases |
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247 | (12) |
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8.5.1 Family of Nonreceptor Tyrosine Protein Kinases |
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247 | (1) |
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8.5.2 Mode of Activation of Nonreceptor Protein Tyrosine Kinases |
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248 | (1) |
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8.5.3 T Cell Receptor Signaling |
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249 | (1) |
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8.5.3.1 Activation of T Lymphocytes, Interaction between T Cell Receptor and Major Histocompatibility Complex |
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249 | (1) |
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8.5.3.2 Signal Transduction Downstream of the T Cell Receptor |
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250 | (2) |
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8.5.3.3 The PLCγ1 to NFAT Pathway |
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252 | (1) |
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8.5.3.4 The PLCγ1 to NFκB Pathway |
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252 | (2) |
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8.5.4 Integrins, Tyrosine Kinases, and Cell Survival |
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254 | (1) |
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8.5.4.1 The Formation of an Integrin Signaling Complex |
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254 | (1) |
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8.5.4.2 Focal Adhesion Kinase-Mediated Activation of Protein Kinase-B |
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255 | (2) |
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8.5.5 Integrins, Tyrosine Kinase, and Cell Proliferation |
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257 | (1) |
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8.5.5.1 FAK Signaling Reinforces the Ras-ERK Pathway |
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257 | (1) |
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8.5.5.2 FAK-Mediated Activation Growth Factor Receptors |
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257 | (2) |
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8.6 Termination of Growth Factor Signal Transduction Pathways |
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259 | (2) |
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261 | (3) |
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8.7.1 Homologous Pathways in Drosophila, C. Elegans, and Mammals |
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261 | (1) |
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8.7.2 Photoreceptor Development in the Fruit Fly |
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261 | (1) |
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8.7.3 Vulval Cell Development in Nematode Worms |
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262 | (2) |
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264 | (5) |
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SECTION V Receptors as Pharmaceutical Targets |
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Chapter 9 Receptors as Pharmaceutical Targets |
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269 | (8) |
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269 | (1) |
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9.2 Partial Agonists: Problems in Detecting Changes in Efficacy |
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270 | (1) |
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9.3 The Value of Bioassays |
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271 | (1) |
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9.4 Are Bioassays Valuable in Pharmaceutical Research? |
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272 | (1) |
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9.5 The Iterative Process of Drug Development |
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273 | (1) |
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274 | (1) |
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274 | (1) |
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9.8 Combinatorial Chemistry |
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275 | (1) |
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9.9 Selecting Targets for Drug Development |
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276 | (1) |
Index |
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277 | |