| Quantum Mechanical/Molecular Mechanical Approaches in Drug Design | p. 1 |
| Introduction | p. 1 |
| QM/MM Methods | p. 4 |
| Additive QM/MM Methods | p. 5 |
| Subtractive QM/MM Methods | p. 7 |
| Applications of QM/MM Methods to Structure-based Drug Design | p. 8 |
| QM/MM Methods to Aid the Understanding of Ligand-Receptor Interactions | p. 9 |
| QM/MM Methods in Scoring Refinement | p. 16 |
| Summary | p. 18 |
| Acknowledgements | p. 19 |
| References | p. 19 |
| Transition Metal Systems | p. 27 |
| Introduction | p. 27 |
| Methods for Modelling Transition Metal Centres | p. 29 |
| Density Functional Theory | p. 30 |
| Molecular Mechanics | p. 33 |
| Ligand Field Effects in Molecular Mechanics | p. 35 |
| Scenarios | p. 39 |
| Predicting log P for Pt Complexes | p. 40 |
| Predicting log P for CuII Complexes | p. 42 |
| Interactions Involving Explicit Receptors | p. 44 |
| Scenario 1: Metallodrug-DNA Intercalation | p. 45 |
| Platinum-DNA Binding | p. 47 |
| Drug Binding in the Cytochrome P450 Active Site Cavity | p. 48 |
| Drug-Zinc Binding and Substrate Oxidation by P450 | p. 50 |
| Conclusions | p. 53 |
| References | p. 53 |
| Modeling Protein-Protein Interactions by Rigid-body Docking | p. 56 |
| Protein-Protein Interactions | p. 56 |
| Predicting Protein Interaction Surfaces | p. 57 |
| Protein-Protein Interaction Databases | p. 58 |
| The Protein Docking Problem | p. 59 |
| Rigid Body Docking | p. 60 |
| Docking By Geometric Hashing | p. 61 |
| Cartesian Grid-based FFT Docking | p. 61 |
| Spherical Polar Fourier Basis Functions | p. 64 |
| Spherical Polar Fourier Correlations | p. 67 |
| Multi-dimensional Spherical Polar FFTs | p. 70 |
| Exploiting Graphics Processor Units | p. 70 |
| The 'Hex' Docking Program | p. 75 |
| Conclusions and Future Prospects | p. 79 |
| Acknowledgements | p. 80 |
| References | p. 80 |
| QM Based Modelling | p. 87 |
| Introduction | p. 87 |
| Computational Demands | p. 88 |
| The Molecular Electrostatic Potential | p. 89 |
| Local Properties and Intermolecular Interactions | p. 91 |
| Local Properties and Molecular Surfaces | p. 93 |
| Spherical Harmonic Expansions | p. 93 |
| Surface Autocorrelations | p. 98 |
| Surface Integral Models | p. 99 |
| Local Properties on Grids | p. 100 |
| Summary and Conclusions | p. 102 |
| Acknowledgments | p. 102 |
| References | p. 103 |
| Semi-empirical Methods: Current Status and Future Directions | p. 107 |
| Introduction | p. 107 |
| MNDO and MNDO/d Based Methods | p. 108 |
| MNDO/d | p. 109 |
| An Overview of Other Semi-empirical Approaches | p. 111 |
| OMx Schemes | p. 111 |
| DFTB | p. 111 |
| MSINDO | p. 111 |
| Hydrogen Bonds, Non-covalent Interaction and Effects of Environment | p. 112 |
| Excited States | p. 113 |
| Electron and Excitation Energy Transfer | p. 114 |
| Linear Scaling | p. 114 |
| Concluding Remarks and Perspectives | p. 115 |
| References | p. 116 |
| Quantum Chemical Topology: on Descriptors, Potentials and Fragments | p. 120 |
| Introduction | p. 120 |
| Quantum Chemical Topology (QCT) | p. 121 |
| Quantum Topological Molecular Similarity (QTMS) | p. 126 |
| Force Field Development: QCTFF | p. 143 |
| Bioisosterism | p. 154 |
| Conclusions | p. 156 |
| Acknowledgement | p. 157 |
| References | p. 157 |
| Cheminformatics in Diverse Dimensions | p. 164 |
| Introduction | p. 164 |
| Zero-dimensional Code Representations | p. 165 |
| CAS Registry Numbers | p. 165 |
| Hash Structural Codes | p. 166 |
| Molecular Descriptors | p. 167 |
| One Dimensional Code Representations | p. 169 |
| Nomenclature of Chemical and Biochemical Compounds | p. 169 |
| Notation of Chemical Compounds | p. 170 |
| Bit String Representations | p. 173 |
| Two-dimensional Code Representations | p. 174 |
| Matrices | p. 175 |
| Connection Table | p. 175 |
| Standard Structure Exchange Formats | p. 176 |
| Conclusion | p. 179 |
| References | p. 179 |
| Analysing Molecular Surface Properties | p. 184 |
| Introduction | p. 184 |
| Molecular Surface Models | p. 185 |
| Molecular Surface Properties | p. 192 |
| Molecular Surface Similarity | p. 194 |
| Molecular Surface Property Graphs | p. 198 |
| Concluding Remarks | p. 204 |
| References | p. 204 |
| Atomistic Modelling of Drug Delivery Systems | p. 210 |
| Introduction | p. 210 |
| Molecular Mechanics - Energy Minimisation | p. 211 |
| Encapsulation of Multinuclear Platinum Complexes | p. 211 |
| Carbon Nanotubes | p. 213 |
| Fullerenes | p. 215 |
| Molecular Dynamics | p. 220 |
| Zeolites as Drug Delivery Agents | p. 220 |
| Other Examples of MD Simulations | p. 225 |
| Quantum Mechanical Methods | p. 226 |
| Delivery of Vancomycin using Mesoporous Materials | p. 226 |
| Design of Conducting Polymers for Drug Delivery | p. 227 |
| Summary | p. 230 |
| References | p. 230 |
| Subject Index | p. 232 |
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