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Evaluation Of Enzyme Inhibitors In Drug Discovery: A Guide For Medicinal Chemists And Pharmacologist药物发现中的酶抑制剂评估：医学药剂师与药物学家指南书籍详细信息
- ISBN：9780471686965
- 作者：暂无作者
- 出版社：暂无出版社
- 出版时间：2005-03
- 页数：300
- 价格：843.00
- 纸张：胶版纸
- 装帧：精装
- 开本：16开
- 语言：未知
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- TAG：暂无
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内容简介：
Vital information for discovering and optimizing new drugs
"Understanding the data and the experimental details that support it has always been at the heart of good science and the assumption challenging process that leads from good science to drug discovery. This book helps medicinal chemists and pharmacologists to do exactly that in the realm of enzyme inhibitors."
-Paul S. Anderson, PhD
This publication provides readers with a thorough understanding of enzyme-inhibitor evaluation to assist them in their efforts to discover and optimize novel drug therapies. Key topics such as competitive, noncompetitive, and uncompetitive inhibition, slow binding, tight binding, and the use of Hill coefficients to study reaction stoichiometry are all presented. Examples of key concepts are presented with an emphasis on clinical relevance and practical applications.
Targeted to medicinal chemists and pharmacologists, Evaluation of Enzyme Inhibitors in Drug Discovery focuses on the questions that they need to address:
* What opportunities for inhibitor interactions with enzyme targets arise from consideration of the catalytic reaction mechanism?
* How are inhibitors evaluated for potency, selectivity, and mode of action?
* What are the advantages and disadvantages of specific inhibition modalities with respect to efficacy in vivo?
* What information do medicinal chemists and pharmacologists need from their biochemistry and enzymology colleagues to effectively pursue lead optimization?
Beginning with a discussion of the advantages of enzymes as targets for drug discovery, the publication then explores the reaction mechanisms of enzyme catalysis and the types of interactions that can occur between enzymes and inhibitory molecules that lend themselves to therapeutic use. Next are discussions of mechanistic issues that must be considered when designing enzyme assays for compound library screening and for lead optimization efforts. Finally, the publication delves into special forms of inhibition that are commonly encountered in drug discovery efforts, but can be easily overlooked or misinterpreted.
This publication is designed to provide students with a solid foundation in enzymology and its role in drug discovery. Medicinal chemists and pharmacologists can refer to individual chapters as specific issues arise during the course of their ongoing drug discovery efforts.
书籍目录：
Foreword
Preface
Acknowledgments
1.Why Enzymes as Drug Targets?
1.1 Enzymes Are Essentials for Life
1.2 Enzyme Structure and Catalysis
1.3 Permutations of Enzyme Structure During Catalysis
1.4 Other Reasons for Studying Enzymes
1.5 Summary
References
2.Enzyme Reaction Mechanisms
2.1 Initial Binding of Substrate
2.2 Noncovalent Forces in Reversible Ligand Binding to Enzymes
2.2.1 Electrostatic Forces
2.2.2 Hydrogen Bonds
2.2.3 Hydrophobic Forces
2.2.4 van der Waals Forces
2.3 Transformations of the Bond Substrate
2.3.1 Strategies for Transition State Stabilization
2.3.2 Enzyme Active Sites Are Most Complementary to the Transition State Structure
2.4 Steady State Analysis of Enzyme Kinetics
2.4.1 Factors Affecting the Steady State Kinetic Constants
2.5 Graphical Determination of kcat and KM
2.6 Reactions Involving Multiple Substates
2.6.1 Bisubstrate Reaction Mechanisms
2.7 Summary
References
3.Reversible Modes of Inhibitor Interactions with Enzymes
3.1 Enzyme-Inhibitor Binding Equilibria
3.2 Competitive Inhibition
3.3 Noncompetitive Inhibition
3.3.1 Mutual Exclusively Studies
3.4 Uncompetitive Inhibition
3.5 Inhibition Modality in Bisubstrate Reactions
3.6 Value of Knowing Inhibitor Modality
3.6.1 Quantitative Comparisons of Inhibitor Affinity
3.6.2 Relating Ki to Binding Energy
3.6.3 Defining Target Selectivity by Ki Values
3.6.4 Potential Advantages and Disadvantages of Different Inhibition Modalities In Vivo
3.6.5 Knowing Inhibition Modality Is Important for Structure-Based Lead Organization
3.7 Summary
References
4.Assay Considerations for Compound Library Screening
4.1 Defining Inhibition Signal Robustness, and Hit Criteria
4.2 Measuring Initial Velocity
4.2.1 End-Point and Kinetic Readouts
4.2.2 Effects of Enzyme Concentration
4.3 Balanced Assay Conditions
4.3.1 Balancing Conditions for Multisubstrate Reactions
4.4 Order of Reagent Addition
4.5 Use of Natural Substrates and Enzymes
4.6 Coupled Enzyme Assays
4.7 Hit Validation and Progression
4.8 Summary
References
5.Lead Optimization and Structure-Activity Relationships for Reversible Inhibitors
5.1 Concentration-Response Plots and IC50 Determination
5.1.1 The Hill Coefficient
5.1.2 Graphing and Reporting Concentration-Response Data
5.2 Testing for Reversibility
5.3 Determining Reversible Inhibition Modality and Dissociation Constant
5.4 Comparing Relative Affinity
5.4.1 Compound Selectivity
5.5 Associating Cellular Effects with Target Enzyme Inhibition
5.5.1 Cellular Phenotype Should Be Consistent with Genetic Knockout or Knockdown of the Target Enzyme
5.5.2 Cellular Activity Should Require a Certain Affinity for the target Enzyme
5.5.3 Buildup of Substrate and/or Diminution of Product for the Target Enzyme Should Be Observed in Cells
5.5.4 Cellular Phenotype Should Be Reversed by Cell-Permeable Product or Downstream Metabolites of the Target Enzyme Activity
5.5.5 Mutation of the Target Enzyme Should Lead to Resistance or Hypersensitivity to Inhibitors
5.6 Summary
References
6.Slow Binding Inhibitors
7.Tight Binding Inhibitors
8.Irreversible Enzyme Inactivators
Appendix 1.Kinetic of Biochemical Reactions
A1.1 The Law of Mass Action and Reaction Order
A1.2 First-Order Reaction Kinetics
A1.3 Second-Order Reaction Kinetics
A1.4 Pseudo-First-Order Reaction Conditions
A1.5 Approach to Equilibrium: An Example of the Kinetics of Reversible Reactions
References
Appendix 2.Derivation of the Enzyme-Ligand Binding Isotherm Equation
References
Appendix 3.Serial Dilution Schemes
Index
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作者简介：
ROBERT A. COPELAND, PhD, is Department Head of Enzymology and Mechanistic Pharmacology at GlaxoSmithKline, and Adjunct Professor of Biochemistry and Biophysics at the University of Pennsylvania School of Medicine. Dr. Copeland has published more than 100 papers and reviews and has authored three books, including Enzymes: A Practical Introduction to Structure, Mechanism, and Data Analysis, Second Edition (Wiley).
书籍介绍
Vital information for discovering and optimizing new drugs
"Understanding the data and the experimental details that support it has always been at the heart of good science and the assumption challenging process that leads from good science to drug discovery. This book helps medicinal chemists and pharmacologists to do exactly that in the realm of enzyme inhibitors."
-Paul S. Anderson, PhD
This publication provides readers with a thorough understanding of enzyme-inhibitor evaluation to assist them in their efforts to discover and optimize novel drug therapies. Key topics such as competitive, noncompetitive, and uncompetitive inhibition, slow binding, tight binding, and the use of Hill coefficients to study reaction stoichiometry are all presented. Examples of key concepts are presented with an emphasis on clinical relevance and practical applications.
Targeted to medicinal chemists and pharmacologists, Evaluation of Enzyme Inhibitors in Drug Discovery focuses on the questions that they need to address:
* What opportunities for inhibitor interactions with enzyme targets arise from consideration of the catalytic reaction mechanism?
* How are inhibitors evaluated for potency, selectivity, and mode of action?
* What are the advantages and disadvantages of specific inhibition modalities with respect to efficacy in vivo?
* What information do medicinal chemists and pharmacologists need from their biochemistry and enzymology colleagues to effectively pursue lead optimization?
Beginning with a discussion of the advantages of enzymes as targets for drug discovery, the publication then explores the reaction mechanisms of enzyme catalysis and the types of interactions that can occur between enzymes and inhibitory molecules that lend themselves to therapeutic use. Next are discussions of mechanistic issues that must be considered when designing enzyme assays for compound library screening and for lead optimization efforts. Finally, the publication delves into special forms of inhibition that are commonly encountered in drug discovery efforts, but can be easily overlooked or misinterpreted.
This publication is designed to provide students with a solid foundation in enzymology and its role in drug discovery. Medicinal chemists and pharmacologists can refer to individual chapters as specific issues arise during the course of their ongoing drug discovery efforts.
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