High resolution EPR : applications to metalloenzymes and metals in medicine
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Bibliographic Information
High resolution EPR : applications to metalloenzymes and metals in medicine
（Biological magnetic resonance / edited by Lawrence J. Berliner and Jacques Reuben, v. 28）
Springer, c2009
- hbk.
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National Institutes of Natural Sciences Okazaki Library and Information Center図
hbk.464.07/Bi/289509456821
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Includes bibliographical references and index
Description and Table of Contents
Description
Metalloproteins comprise approximately 30% of all known proteins, and are involved in a variety of biologically important processes, including oxygen transport, biosynthesis, electron transfer, biodegradation, drug metabolism, proteolysis, and hydrolysis of amides and esters, environmental sulfur and nitrogen cycles, and disease mechanisms. EPR spectroscopy has an important role in not only the geometric structural characterization of the redox cofactors in metalloproteins but also their electronic structure, as this is crucial for their reactivity. The advent of x-ray crystallographic snapshots of the active site redox cofactors in metalloenzymes in conjunction with high-resolution EPR spectroscopy has provided detailed structural insights into their catalytic mechanisms.
This volume was conceived in 2005 at the Rocky Mountain Conference on Analytical Chemistry (EPR Symposium) to highlight the importance of high-resolution EPR spectroscopy to the structural (geometric and electronic) characterization of redox active cofactors in metalloproteins. We have been fortunate to have enlisted internationally recognized experts in this joint venture to provide the scientific community with an overview of high-resolution EPR and its application to metals in biology. This volume, High-Resolution EPR: Applications to Metalloenzymes and Metals in Medicine, covers high-resolution EPR methods, iron proteins, nickel and copper enzymes, and metals in medicine. An eloquent synopsis of each chapter is provided by John Pilbrow in the Introduction. A second volume, Metals in Biology: Applications of High-Resolution EPR to Metalloenzymes, will appear later this year covering the complement of other metalloproteins.
One of the pioneers in the development of pulsed EPR and its application to metalloproteins was Arthur Schweiger, whose contribution we include in this volume. Unfortunately, he passed away suddenly during the preparation of this volume. The editors and coauthors are extremely honored to dedicate this volume to the memory of Arthur Schweiger in recognition of his technical advances and insights into pulsed EPR and its application to metalloproteins. Arthur was extremely humble and treated everyone with equal respect. He was a gifted educator with an ability to explain complex phenomena in terms of simple intuitive pictures, had a delightful personality, and continues to be sadly missed by the community.
It is an honor for the editors to facilitate the dissemination of these excellent contributions to the scientific community. Suggestions for future volumes are always appreciated.
Table of Contents
Chapter 1
Introduction....................................................................................................... 1
John R. Pilbrow
HIGH-RESOLUTION EPR METHODS
Chapter 2
Advanced Pulse EPR Methods for the Characterization of Metalloproteins
Jeffrey Harmer, George Mitrikas, and Arthur Schweiger
1. Introduction................................................................................................. 13
2. Spin Hamiltonian ........................................................................................ 15
3. ESEEM Basics ............................................................................................ 20
4. Electron Nuclear Double Resonance (ENDOR).......................................... 40
5. Field-Swept EPR Experiments .................................................................... 52
6. Strategies and Outlook ................................................................................ 54
Chapter 3
Probing Structural and Electronic Parameters in Randomly Oriented Metalloproteins by Orientation-Selective ENDOR Spectroscopy
Reinhard Kappl, Gerhard Bracic, and Jurgen Huttermann
1. Introduction................................................................................................. 64
2. Theory ......................................................................................................... 65
3. Orientation Selection in EPR and ENDOR................................................. 74
4. Examples of Applications: Iron-Sulfur Proteins......................................... 82
5. Summary ..................................................................................................... 100
Chapter 4
Molecular Sophe: An Integrated Approach to the Structural Characterization of Metalloproteins: The Next Generation of Computer SimulationSoftware
Graeme R. Hanson, Christopher J. Noble, and Simon Benson
1. Introduction................................................................................................. 105
2. Molecular Sophe Computational Software Suite ........................................ 114
3. Sophe: Computational Code........................................................................ 150
4. Molecular Sophe - Examples.................................................................... 159
5. Advances in Spectral Optimization ............................................................. 167
6. Conclusions................................................................................................. 171
Chapter 5
Spin-Hamiltonian Parameters from First Principle Calculations: Theory and Application
Frank Neese
1. Introduction................................................................................................. 175
2. Electronic Structure Theory of Spin-Hamiltonian Parameters .................... 177
3. Case Studies ................................................................................................ 201
4. Concluding Remarks ................................................................................... 222
IRON PROTEINS
Chapter 6
EPR of Mononuclear Non-Heme Iron Proteins
Betty J. Gaffney
1. EPR of Mononuclear, High-Spin Ferric Non-Heme Proteins ...................... 233
2. EPR of Mononuclear, Low-Spin Ferric Non-Heme Proteins ....................... 251
3. Radical (S = 1/2) Probes of Ferrous (S = 2) Iron ........................................ 251
Chapter 7
Binuclear Non-Heme Iron Enzymes
Natasa Mitic, Gerhard Schenk, and Graeme R. Hanson
1. Introduction.................................................................................................. 269
2. Bacterial
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