| Introduction: Bioassays - Past Uses and Future Potential |
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1 | (15) |
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| Section I: Classical Pharmacology and Isolated Tissue Systems |
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Human Vascular Receptors in Disease: Pharmacodynamic Analyses in Isolated Tissue |
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15 | (36) |
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15 | (1) |
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Receptors Mediating Coronary Artery Contraction: Role in Variant Angina |
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16 | (12) |
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16 | (1) |
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16 | (1) |
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5-HT and Endothelium-Derived Relaxing Factor |
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16 | (5) |
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Small Resistance Arteries |
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21 | (6) |
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27 | (1) |
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Vascular Reactivity in Human Primary Hypertension and Congestive Heart Failure |
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28 | (9) |
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The Technique, Function and Structure |
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28 | (1) |
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29 | (2) |
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31 | (2) |
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Forearm Veins in Primary Hypertension |
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33 | (1) |
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34 | (3) |
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Pharmacology of Vascular Conduits for Coronary-Bypass Graft Surgery |
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37 | (4) |
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37 | (1) |
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38 | (3) |
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41 | (1) |
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Human Vascular-to-Cardiac Tissue Selectivity of L-and T-Type VOCC Antagonists |
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41 | (10) |
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47 | (4) |
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Problems in Assigning Mechanisms: Reconciling the Molecular and Functional Pathways in α-Adrenoceptor-Mediated Vasoconstriction |
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51 | (22) |
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51 | (1) |
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Coupling Mechanisms at the Molecular and Cellular Levels |
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52 | (4) |
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52 | (2) |
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54 | (2) |
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Coupling Mechanisms in the Intact Animal |
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56 | (3) |
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59 | (2) |
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61 | (1) |
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Autocrine and Paracrine Activation |
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62 | (2) |
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64 | (2) |
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Adenylate Cyclase and α2-Adrenoceptors |
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66 | (2) |
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68 | (5) |
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69 | (4) |
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Gs Protein-Coupled Receptors in Human Heart |
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73 | (46) |
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73 | (1) |
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73 | (1) |
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74 | (6) |
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Comparison of β1- and β2-Adrenoceptors |
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74 | (1) |
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74 | (1) |
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Function of β1- and β2-Adrenoceptors |
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74 | (1) |
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Selective Coupling of β2-Adrenoceptors |
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75 | (5) |
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Is There a Functional role for Cardiac β3-Adrenoceptors? |
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80 | (2) |
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Evidence Against Cardiostimulation |
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80 | (1) |
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Evidence for Cardiostimulation |
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81 | (1) |
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Evidence for Cardiodepression |
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81 | (1) |
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Evidence Against Cardiodepression |
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82 | (1) |
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Cardiostimulant Effect Through the Putative β4-Adrenoceptor |
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82 | (8) |
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Non-Conventional Partial Agonists |
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82 | (2) |
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The Putative β4-Adrenoceptor Resembles - But Is Distinct from - the β3-Adrenoceptor |
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84 | (3) |
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Which Endogenous Agonist for the Putative β4-Adrenoceptor? |
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87 | (1) |
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The Putative β4-Adrenoceptor is a Special State of the β1-Adrenoceptor |
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88 | (2) |
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90 | (5) |
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Coupling to a cAMP Pathway |
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90 | (1) |
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91 | (4) |
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Cross-Talk Between Cardiac Gs-Coupled Receptors, as Revealed by Chronic Blockade of β1-Adrenoceptors |
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95 | (6) |
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Physiological, Pathophysiological and Therapeutic Relevance |
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101 | (6) |
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101 | (4) |
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Putative β4-Adrenoceptors |
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105 | (1) |
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105 | (2) |
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107 | (12) |
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108 | (11) |
| Section II: New Theoretical Concepts and Molecular Mechanisms of Receptor Function |
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Kinetic Modeling Approaches to Understanding Ligand Efficacy |
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119 | (28) |
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119 | (1) |
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120 | (6) |
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120 | (1) |
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121 | (1) |
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Equilibrium, Steady State, and Kinetic Models |
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122 | (1) |
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Diffusion-Versus Reaction-Controlled Events |
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123 | (1) |
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Model Structures and Dose-Response Curves |
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124 | (2) |
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Parameters Contributing to Ligand Efficacy |
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126 | (17) |
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The Lifetime of the Individual Receptor-Ligand Complex (1/kr) |
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126 | (5) |
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The Receptor Desensitization Rate Constant kx |
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131 | (3) |
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The Ligand Binding and Dissociation Rate Constants at Endosomal pH |
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134 | (5) |
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Rate Constants in a Ternary Complex Model |
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139 | (4) |
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143 | (4) |
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144 | (3) |
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The Evolution of Drug-Receptor Models: The Cubic Ternary-Complex Model for G Protein-Coupled Receptors |
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147 | (20) |
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147 | (1) |
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The Ternary Complex Model of Receptor Function |
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148 | (1) |
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149 | (2) |
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The Extended Ternary Complex Model |
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151 | (1) |
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152 | (3) |
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General Application of the Cubic Model |
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155 | (8) |
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Evidence for the AriG Complex |
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158 | (5) |
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163 | (4) |
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163 | (4) |
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167 | (16) |
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167 | (1) |
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Overexpression, Spontaneous Activity and Inverse Agonism |
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168 | (5) |
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Mutations and Diseases of Spontaneous Receptor Activity |
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173 | (1) |
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Modulation of Receptor Function by Agonists and Inverse Agonists |
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174 | (3) |
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177 | (1) |
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178 | (5) |
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178 | (5) |
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Efficacy: Molecular Mechanisms and Operational Methods of Measurement. A New Algorithm for the Prediction of Side Effects |
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183 | (34) |
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183 | (1) |
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The Molecular Nature of Efficacy |
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183 | (3) |
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Positive and Negative Efficacy |
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186 | (2) |
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The Operational Measurement of Relative Efficacy |
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188 | (13) |
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188 | (1) |
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Guanosine Triphosphate γS Shift |
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188 | (3) |
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High-Affinity Selection Binding |
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191 | (1) |
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192 | (3) |
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195 | (1) |
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196 | (1) |
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Comparison of Relative Maximal Responses |
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197 | (4) |
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Limitations of Agonist Potency Ratios |
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201 | (3) |
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Why Measure the Relative Efficacies of Agonists? |
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204 | (2) |
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A Simple Algorithm for the Prediction of Agonist Side Effects Using Efficacy and Affinity Estimates |
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206 | (9) |
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Therapeutic Versus Secondary Agonism: Side Effect Versus Coupling Constant Profiles |
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208 | (2) |
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Algorithm for Calculation of Relative β50 |
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210 | (2) |
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Application of the Algorithm to β3-Adrenoceptor Agonists |
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212 | (2) |
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Limitations of the Algorithm |
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214 | (1) |
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215 | (2) |
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215 | (2) |
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A Look at Receptor Efficacy. From the Signalling Network of the Cell to the Intramolecular Motion of the Receptor |
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217 | (44) |
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217 | (1) |
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Biological Receptors and the Dualism of Affinity and Efficacy |
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217 | (4) |
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Signal Transfer and Conformational Change in Membrane Receptor |
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217 | (1) |
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The Distinction Between Affinity and Efficacy |
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218 | (1) |
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Generality of the Concept of Efficacy in Functional Proteins |
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219 | (1) |
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219 | (1) |
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Two Flavours in the Definition of Efficacy: Biological and Molecular |
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220 | (1) |
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Biological Definitions of Efficacy |
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221 | (6) |
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The Nature of Signal Strength |
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221 | (1) |
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Stimulus-Response Relationships |
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222 | (1) |
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The Scale of Agonism and Antagonism |
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223 | (2) |
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Steps of Signal Transduction and the Indeterminacy of Stimulus-Response Relationships |
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225 | (2) |
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Molecular Definitions of Efficacy |
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227 | (11) |
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A Molecular Link Between Affinity and Efficacy |
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227 | (1) |
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Allosteric Equilibrium, Free-Energy Coupling, and Thermodynamic Definitions of Efficacy |
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227 | (4) |
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Linkage Between Macroscopic Perturbations in the Receptor |
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231 | (2) |
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Functional and Physical States in Proteins |
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233 | (2) |
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Microscopic Interpretation of Allosteric Equilibrium |
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235 | (3) |
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A Stochastic Model of Molecular Efficacy |
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238 | (23) |
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Protein Motion and Fluctuations in Its Conformational Space |
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238 | (1) |
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Probability Distribution of Microscopic States and Derivation of Macroscopic Constants |
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238 | (3) |
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Probabilistic Interpretation of Ligand Efficacy |
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241 | (3) |
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Relationship Between Physical States and Biological Function |
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244 | (1) |
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Relationship Between Efficacy and Fluorescence Changes in β2-Adrenoceptors |
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244 | (4) |
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Correlated Macroscopic Changes in Constitutively Active Adrenoceptors |
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248 | (6) |
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254 | (7) |
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Mechanisms of Non-Competitive Antagonism and Co-Agonism |
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261 | (22) |
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Non-Competitive Antagonism |
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261 | (6) |
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261 | (1) |
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Analysis of the Effect of Non-Competitive Antagonists |
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261 | (6) |
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267 | (12) |
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Theory as Applied to the Glutamate NMDA Receptor |
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267 | (1) |
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267 | (1) |
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268 | (3) |
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The Effect of a Competitive Antagonist on the Response of Co-Agonism |
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271 | (2) |
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The Effect of a Non-Competitive Antagonist on the Response of Co-Agonists |
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273 | (1) |
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Experimental Data Supporting the Concept of Co-Agonism and Its Antagonism |
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274 | (1) |
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274 | (2) |
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276 | (2) |
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Implications of Co-Agonism |
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278 | (1) |
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279 | (4) |
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280 | (3) |
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Mechanisms of Receptor Activation and the Relationship to Receptor Structure |
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283 | (30) |
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283 | (1) |
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Common GPCR Structure/Function |
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283 | (3) |
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Rhodopsin and bR Activation: Light as the Ligand |
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286 | (5) |
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Direct Structural Information |
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287 | (1) |
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288 | (1) |
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288 | (1) |
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Salt-Bridge Constraining Factor: Movement of TM3 and TM6 |
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289 | (2) |
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AR Activation: Small Organics as Ligands |
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291 | (7) |
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Important Binding Contacts of the Endogenous Ligands |
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291 | (2) |
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Insights on How Epinephrine Activates |
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293 | (1) |
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Release of Constraining Factors |
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293 | (1) |
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Evidence for a Salt-Bridge as a Constraint: Movement of TM3 and TM7 |
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294 | (2) |
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Evidence for Multiple Activation States or Mechanisms |
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296 | (1) |
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Evidence for Additional Constraining Factors: Movement of TM5 and TM6 |
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296 | (2) |
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Angiotensin-Receptor Activation: Peptides as Ligands |
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298 | (4) |
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Peptide-Hormone GPCRs: How the Peptide Binds |
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298 | (1) |
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298 | (1) |
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How AngII Peptides and Non-Peptides Bind |
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299 | (1) |
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Insights into AngII Activation |
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300 | (1) |
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300 | (1) |
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Release of Constraining Factors: Role of TM3 |
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300 | (2) |
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The Ties that Bind: Concluding Remarks |
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302 | (11) |
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Conservation of Critical Binding Contacts and Resulting Helical Movements |
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302 | (1) |
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Conservation of Switches that Control Attainment of the Active State(s) |
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302 | (2) |
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304 | (9) |
| Section III: New Technologies for the Study of Drug Receptor Interaction |
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The Assembly of Recombinant Signalling Systems and Their Use in Investigating Signaling Dynamics |
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313 | (22) |
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313 | (1) |
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Assembly of Recombinant Signaling Systems |
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314 | (4) |
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314 | (2) |
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Transient Expression Systems |
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316 | (2) |
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Drug-Receptor Interactions in Recombinant Signaling Systems |
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318 | (10) |
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Cell-Type-Specific Signaling Events |
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318 | (5) |
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Influence of Accessory Proteins |
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323 | (5) |
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328 | (7) |
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328 | (7) |
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Insect Cell Systems to Study the Communication of Mammalian Receptors and G Proteins |
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335 | (28) |
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335 | (3) |
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Selectivity of Receptor-G Protein Interactions |
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335 | (1) |
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Effector Modulation as a Measure of G Protein Activity |
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336 | (1) |
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Direct Measures of G Protein Activity |
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337 | (1) |
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Insect Cell Expression Systems |
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338 | (7) |
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Expression of Receptors in Insect Cell Lines |
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338 | (4) |
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Interaction of Receptors with Endogenous G Proteins and Effectors |
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342 | (1) |
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Quantitation of Coupling Using Radioligand Binding |
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343 | (2) |
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Reconstitution of Mammalian Receptors and G Proteins: Reconstituted Properties of Ligand Binding |
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345 | (5) |
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Influence of Heterotrimeric G Proteins on Binding of Agonists |
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346 | (2) |
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Influence of Individual G Protein Subunits on Binding of Agonists |
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348 | (1) |
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Characterization of Inverse Agonism |
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349 | (1) |
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Reconstitution of Mammalian Receptors and G Proteins: G Protein Activation |
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350 | (6) |
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Activation Following Co-Expression of Receptor and G Protein |
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350 | (4) |
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Activation Following Addition of Purified G Protein to Membranes |
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354 | (1) |
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Limitations and Technical Considerations |
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355 | (1) |
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356 | (1) |
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356 | (7) |
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Altering the Relative Stoichiometry of Receptors, G Proteins and Effectors: Effects on Agonist Function |
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363 | (28) |
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363 | (4) |
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363 | (1) |
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Systems to Modulate GPCR--G Protein-Effector Stoichiometries |
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364 | (1) |
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Cellular Distribution of Elements of G Protein-Coupled Signaling Cascades |
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365 | (2) |
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GPCR-G Protein Fusion Proteins. A Novel Means to Restrict and Define the Stoichiometry of Expression of a GPCR and a G Protein α Subunit |
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367 | (3) |
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G Protein-Coupled Receptors |
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370 | (6) |
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376 | (4) |
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Effector Enzymes: Adenylyl Cyclase |
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380 | (3) |
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383 | (8) |
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383 | (8) |
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The Study of Drug-Receptor Interaction Using Reporter Gene Systems in Mammalian Cells |
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391 | (24) |
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391 | (10) |
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What is a Reporter Gene System? |
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391 | (1) |
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391 | (1) |
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391 | (2) |
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393 | (1) |
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Measurement of Intracellular Signaling |
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393 | (1) |
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393 | (1) |
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393 | (2) |
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Chimeric Transcription Factors |
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395 | (2) |
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397 | (3) |
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Transient Versus Stable Expression of Reporter Genes |
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400 | (1) |
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400 | (1) |
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400 | (1) |
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Use of Reporter Gene Systems in Pharmacology |
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401 | (14) |
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401 | (1) |
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401 | (1) |
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Use of Reporter Gene Assays to Assess Receptor Agonism |
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402 | (1) |
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6CRE-Luciferase as a Reporter for Gαs-Coupled Receptor Signaling |
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402 | (1) |
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Aequorin as a Reporter for Gαaq11-Coupled Receptor Signaling |
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402 | (3) |
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The Use of a Ga14/Elk-1 Chimera to Report Opioid-Receptor-Like Receptor-1 Activation of MAPK |
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405 | (1) |
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Use of Reporter Gene Assays to Evaluate Receptor Antagonism |
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405 | (1) |
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Simultaneous Detection of Multiple Signals |
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405 | (1) |
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405 | (2) |
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Combination of Reporter Assays with Other Assay Types |
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407 | (2) |
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Measurement of constitutive Activity |
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409 | (2) |
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411 | (1) |
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Assessment of New Signaling Pathways |
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411 | (1) |
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412 | (3) |
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Melanophore Recombinant Receptor Systems |
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415 | (26) |
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415 | (2) |
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Cellular Signaling in Melanophores |
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417 | (6) |
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417 | (2) |
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Endogenous Receptor Signaling |
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419 | (2) |
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421 | (1) |
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α-Melanocyte Stimulating Hormone (MSH) Receptor |
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421 | (1) |
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422 | (1) |
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422 | (1) |
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422 | (1) |
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423 | (1) |
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Melanophore Assay Technology |
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423 | (6) |
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Cell Culture and Related Techniques |
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423 | (1) |
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Preparation of Cultures of Melanophore |
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423 | (1) |
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Continuous Culturing of Xenopus laevis Melanophores |
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424 | (1) |
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424 | (1) |
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Preparation of Stable Melanophore Lines Expressing Exogenous Receptors |
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425 | (1) |
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425 | (1) |
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425 | (1) |
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426 | (1) |
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427 | (1) |
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427 | (1) |
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428 | (1) |
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Receptor Cloning and Mutagenesis Studies |
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428 | (1) |
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Receptor Studies and Applications |
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429 | (6) |
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Characterization of Novel GPCRs |
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431 | (1) |
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Lawn Format Screen System |
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432 | (1) |
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Single Transmembrane Receptors |
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433 | (1) |
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Receptor-Ligand Interaction Studies |
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434 | (1) |
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435 | (6) |
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435 | (6) |
| Subject Index |
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441 | |