Focus on Structural Biology – serie

Solid state NMR is rapidly emerging as a universally applicable method for the characterization of ordered structures that cannot be studied with solution methods or diffraction techniques. This proceedings volume - from a recent international workshop - captures an image of the developments and directions for solid state NMR in biological research, particularly on membrane proteins. Higher fields are bringing clear improvements, and the power of solid state NMR techniques for studying amorphous and membrane associated peptides, proteins and complexes is shown by examples of applications at ultra-high fields. Progress in protein expression, experimental design and data analysis are also presented by leaders in these research areas.

The human genome project is set to revolutionize health care and medicine. The genetic make up of each individual gives clues as to the genetic factors that predispose one to a particular genetic disease. Single Nucleotide Polymorphisms (SNPs), single base changes in the nucleotide DNA sequence of individuals, are thought to be the main cause of genetic variation. By comparing patterns of SNP allele frequencies between disease affected and control populations, disease associated SNPs can be identified and potential disease gene(s) located. These types of study necessitate genotyping of thousands of SNPs which requires the use of powerful, high throughput, systems of analysis. Mass spectrometry is fast becoming the preferred technology for this type of high throughput analysis. This book contains a collection of descriptions of some of the most outstanding advances in the field of mass spectrometry from which, it is hoped, the reader will be able to learn both the principles and the most up-to-date methods for its use in genomic analysis. It covers the general principles of the technologies and more in depth detailed descriptions for more academic reading and information.

It is a truism of science that the more fundamental the subject, the more universally applicable it is. Neverthelens, it is important to strike a level of "fundamentalness" appropriate to the task in hand. For example, an in-depth study of the mechanics of motor cars would tell one nothing about the dynamics of traffic. Traffic exists on a different "level" - it is dependent upon the existence of motor vehicles but the physics and mathematics of traffic can be adequately addressed by considering motor vehicles as mobile "blobs", with no consideration of how they become mobile. To start a discourse on traffic with a consideration of the mechanics of motor vehicles would thus be inappropropriate. In writing this volume, I have wrestled with the question of the appropriate level at which to address the physics underlying many of the techniques used in protein isolation. I have tried to strike a level as would be used by a mechanic (with perhaps a slight leaning towards an engineer) - i.e. a practical level, offering appropriate insight but with minimal mathematics. Some people involved in biochemical research have a minimal grounding in chemistry and physics and so I have tried to keep it as simple as possible.

NMR spectroscopy has proven to be a powerful technique to study the structure and dynamics of biological macromolecules. Fundamentals of Protein NMR Spectroscopy is a comprehensive textbook that guides the reader from a basic understanding of the phenomenological properties of magnetic resonance to the application and interpretation of modern multi-dimensional NMR experiments on 15N/13C-labeled proteins. Beginning with elementary quantum mechanics, a set of practical rules is presented and used to describe many commonly employed multi-dimensional, multi-nuclear NMR pulse sequences. A modular analysis of NMR pulse sequence building blocks also provides a basis for understanding and developing novel pulse programs. This text not only covers topics from chemical shift assignment to protein structure refinement, as well as the analysis of protein dynamics and chemical kinetics, but also provides a practical guide to many aspects of modern spectrometer hardware, sample preparation, experimental set-up, and data processing. End of chapter exercises are included to emphasize important concepts. Fundamentals of Protein NMR Spectroscopy not only offer students a systematic, in-depth, understanding of modern NMR spectroscopy and its application to biomolecular systems, but will also be a useful reference for the experienced investigator.

During teaching NMR to students and researchers, we felt the need for a text-book which can cover modern trends in the application of NMR to biological systems. This book caters to the needs of: (i) graduate students who mostly learn such techniques from senior post-docs in the laboratory; (ii) those who are not experts in NMR but wish to understand if a particular problem in animal, plant, medical and pharmaceutical sciences can be answered by NMR; and (iii) those who are experts in chemistry and biochemistry and wish to know how NMR can provide them information on structural or functional aspect of proteins, nucleic acids, cells and tissues, human and plant organs and other biological materials. This book builds a means of knowledge transfer between the beginners and the experts in NMR as applied to all aspects of life sciences.

It was twenty ?ve years ago this year that for the ?rst time a protein under- ing a form of human cerebral amyloidosis, the Icelandic-type hereditary cerebral haemorrhage was identi?ed. This, together with the recognition that an amino acid substitution can transform the wild type cystatin C into a disease-associated amyloid-forming protein in this condition, was only a prelude to a series of imp- tant discoveries that followed. As a result, pathologically altered proteins have been brought into the centre stage of research into the pathomechanism of a n- ber of neurodegenerative diseases, which include epidemiologically such important conditions as Alzheimer's disease or Parkinson's disease and, among others, also the transmissible spongiform encephalopathies, Huntington's chorea, spinocereb- lar ataxias, frontotemporal lobar degenerations and amyotrophic lateral sclerosis.Despite the diversity in the amino acid sequence of the different proteins involved in these neurological diseases, one of the common themes underlying the patho- chanisms of all these conditions is protein misfolding, aggregation - hence the term protein folding disorders -, which can trigger cascades of events ultimately resulting in synapse loss and neuron death with devastating clinical consequences in many of the most precious spheres of human existence including personality, cognition, memory, skilled movements and affection. It is always a challenging task to unite the different topics of the individual ch- ters into a common theme in a multi-author volume, but the current book edited by Judit Ovadi and Ferenc Orosz ?ts this task admirably.

This book presents key aspects and recent developments of cryogenic sample electron tomography (cryo-ET) methodology, authored by leading experts in the field. Understanding structure and function of biomolecules in the context of cells is a new frontier in cellular and structural biology. To facilitate such research, cryo-ET is a key method to visualize the molecules of life in their native settings. Cryo-ET enables the imaging of samples that are preserved in a near-native state, at (macro)-molecular resolution and in three dimensions. Thus, this technique is a unique tool to gain insights into how biomolecules collaborate in orchestrating fundamental biological processes, how mutations cause diseases, pathogens cause infections, and to develop novel therapeutics to treat such illnesses. This book provides a unique reference for the emerging field of cryo-ET.The topics covered range from the fundamental principles of imaging to sample preparation, data analysis,and data sharing within the scientific community. It serves as a valuable resource for the next generation of structural biologists, making it suitable both for undergraduate students studying biochemistry, biophysics, and molecular biology and highly valuable for the more experienced and specialized PhD student. Furthermore, it stands as a state-of-the–art source of knowledge for the established senior scientist within the field of structural biology.

This book presents key aspects and recent developments of cryogenic sample electron tomography (cryo-ET) methodology, authored by leading experts in the field. Understanding structure and function of biomolecules in the context of cells is a new frontier in cellular and structural biology. To facilitate such research, cryo-ET is a key method to visualize the molecules of life in their native settings. Cryo-ET enables the imaging of samples that are preserved in a near-native state, at (macro)-molecular resolution and in three dimensions. Thus, this technique is a unique tool to gain insights into how biomolecules collaborate in orchestrating fundamental biological processes, how mutations cause diseases, pathogens cause infections, and to develop novel therapeutics to treat such illnesses. This book provides a unique reference for the emerging field of cryo-ET.The topics covered range from the fundamental principles of imaging to sample preparation, data analysis,and data sharing within the scientific community. It serves as a valuable resource for the next generation of structural biologists, making it suitable both for undergraduate students studying biochemistry, biophysics, and molecular biology and highly valuable for the more experienced and specialized PhD student. Furthermore, it stands as a state-of-the–art source of knowledge for the established senior scientist within the field of structural biology.

Solid state NMR is rapidly emerging as a universally applicable method for the characterization of ordered structures that cannot be studied with solution methods or diffraction techniques. This proceedings -; from a recent international workshop - captures an image of the latest developments and future directions for solid state NMR in biological research, particularly on membrane proteins. Detailed information on how hormones or drugs bind to their membrane receptor targets is needed, e.g. for rational drug design. Higher fields are bringing clear improvements, and the power of solid state NMR techniques for studying amorphous and membrane associated peptides, proteins and complexes is shown by examples of applications at ultra-high fields. Progress in protein expression, experimental design and data analysis are also presented by leaders in these research areas.

It is a truism of science that the more fundamental the subject, the more universally applicable it is. Neverthelens, it is important to strike a level of "fundamentalness" appropriate to the task in hand. For example, an in-depth study of the mechanics of motor cars would tell one nothing about the dynamics of traffic. Traffic exists on a different "level" - it is dependent upon the existence of motor vehicles but the physics and mathematics of traffic can be adequately addressed by considering motor vehicles as mobile "blobs", with no consideration of how they become mobile. To start a discourse on traffic with a consideration of the mechanics of motor vehicles would thus be inappropropriate. In writing this volume, I have wrestled with the question of the appropriate level at which to address the physics underlying many of the techniques used in protein isolation. I have tried to strike a level as would be used by a mechanic (with perhaps a slight leaning towards an engineer) - i.e. a practical level, offering appropriate insight but with minimal mathematics. Some people involved in biochemical research have a minimal grounding in chemistry and physics and so I have tried to keep it as simple as possible.

NMR spectroscopy has proven to be a powerful technique to study the structure and dynamics of biological macromolecules. Fundamentals of Protein NMR Spectroscopy is a comprehensive textbook that guides the reader from a basic understanding of the phenomenological properties of magnetic resonance to the application and interpretation of modern multi-dimensional NMR experiments on 15N/13C-labeled proteins. Beginning with elementary quantum mechanics, a set of practical rules is presented and used to describe many commonly employed multi-dimensional, multi-nuclear NMR pulse sequences. A modular analysis of NMR pulse sequence building blocks also provides a basis for understanding and developing novel pulse programs. This text not only covers topics from chemical shift assignment to protein structure refinement, as well as the analysis of protein dynamics and chemical kinetics, but also provides a practical guide to many aspects of modern spectrometer hardware, sample preparation, experimental set-up, and data processing. End of chapter exercises are included to emphasize important concepts. Fundamentals of Protein NMR Spectroscopy not only offer students a systematic, in-depth, understanding of modern NMR spectroscopy and its application to biomolecular systems, but will also be a useful reference for the experienced investigator.

During teaching NMR to students and researchers, we felt the need for a text-book which can cover modern trends in the application of NMR to biological systems. This book caters to the needs of: (i) graduate students who mostly learn such techniques from senior post-docs in the laboratory; (ii) those who are not experts in NMR but wish to understand if a particular problem in animal, plant, medical and pharmaceutical sciences can be answered by NMR; and (iii) those who are experts in chemistry and biochemistry and wish to know how NMR can provide them information on structural or functional aspect of proteins, nucleic acids, cells and tissues, human and plant organs and other biological materials. This book builds a means of knowledge transfer between the beginners and the experts in NMR as applied to all aspects of life sciences.

It was twenty ?ve years ago this year that for the ?rst time a protein under- ing a form of human cerebral amyloidosis, the Icelandic-type hereditary cerebral haemorrhage was identi?ed. This, together with the recognition that an amino acid substitution can transform the wild type cystatin C into a disease-associated amyloid-forming protein in this condition, was only a prelude to a series of imp- tant discoveries that followed. As a result, pathologically altered proteins have been brought into the centre stage of research into the pathomechanism of a n- ber of neurodegenerative diseases, which include epidemiologically such important conditions as Alzheimer's disease or Parkinson's disease and, among others, also the transmissible spongiform encephalopathies, Huntington's chorea, spinocereb- lar ataxias, frontotemporal lobar degenerations and amyotrophic lateral sclerosis.Despite the diversity in the amino acid sequence of the different proteins involved in these neurological diseases, one of the common themes underlying the patho- chanisms of all these conditions is protein misfolding, aggregation - hence the term protein folding disorders -, which can trigger cascades of events ultimately resulting in synapse loss and neuron death with devastating clinical consequences in many of the most precious spheres of human existence including personality, cognition, memory, skilled movements and affection. It is always a challenging task to unite the different topics of the individual ch- ters into a common theme in a multi-author volume, but the current book edited by Judit Ovadi and Ferenc Orosz ?ts this task admirably.

This volume presents a review of the latest numerical techniques used to identify ligand binding and protein complexation sites. It should be noted that there are many other theoretical studies devoted to predicting the activity of specific proteins and that useful protein data can be found in numerous databases. The aim of advanced computational techniques is to identify the active sites in specific proteins and moreover to suggest a generalized mechanism by which such protein-ligand (or protein-protein) interactions can be effected. Developing such tools is not an easy task – it requires extensive expertise in the area of molecular biology as well as a firm grasp of numerical modeling methods. Thus, it is often viewed as a prime candidate for interdisciplinary research.

76 2. Short Oligonucleotide Mass Analysis 76 2. 1. Method Outline 76 2. 2. Design of PCR Primers and Fragments for Analysis 78 2. 3. Typical PCR Reaction Conditions 79 3. Electrospray Ionisation Mass Spectrometry 79 Formation of Ions 3. 1. 79 3. 2. Tandem Mass Spectrometry 79 3. 3. Typical ESI-MS Settings for SOMA 80 4. Purification Procedures 80 4. 1. Phenol/Chloroform Extraction and Ethanol Precipitation 80 4. 2. In-line HPLC Purification 81 5. Genotyping Using SOMA 81 5. 1. APC Genotyping in Human Subjects 81 5. 2. APC Genotyping in Min Mice 85 5. Mutation Detection Using SOMA 86 6. 1. Analysis of p53 Mutations in Liver Cancer Patients 86 6. 1. 1. p53 Mutations in Liver Tumours 87 6. 1. 2. p53 Mutations in Plasma Samples 88 7. Advantages and Disadvantages of SOMA 89 8. Future Perspectives 90 9. Acknowledgements 91 10. References 91 CHAPTER 7 WV. Bienvenut, M. Müller, PM. Palagi, E. Gasteiger, M. Heller, E. Jung, M. Giron, R. Gras, S. Gay, PA. Binz, G J. Hughes, JC. Sanchez, RD. Appel, DF. Hochstrasser Proteomics and Mass Spectrometry: Some Aspects and Recent Developments 1. Introduction to Proteomics 93 2. Protein Biochemical and Chemical Processing Followed by Mass Spectrometric Analysis 94 2. 1. 2-DE Gel Protein Separation 95 Protein Identification Using Peptide Mass Fingerprinting and Robots 96 2. 2. 2. 2. 1. MALDI-MS Analysis 98 2. 2. 2. MS/MS Analysis 102 Improvement of the Identification by Chemical Modification of Peptides 106 2. 2. 3.

This monograph is the first easy-to-read-and-understand book on prion proteins' molecular dynamics (MD) simulations and on prions' molecular modelling (MM) constructions.  It enables researchers to see what is crucial to the conformational change from normal cellular prion protein (PrPC) to diseased infectious prions (PrPSc), using MD and MM techniques. As we all know, prion diseases, caused by the body's own proteins, are invariably fatal and highly infectious neurodegenerative diseases effecting humans and almost all animals for a major public health concern. Prion contains no nucleic acids and it is a misshapen or conformation-changed protein that acts like an infectious agent; thus prion diseases are called “protein structural conformational” diseases.PrPC is predominant in α-helices but PrPSc are rich in β-sheets in the form as amyloid fibrils; so very amenable to be studied by MD techniques. Through MD, studies on the proteinstructures and the structural conversion are very important for revealing secrets of prion diseases and for structure-based drug design or discovery. Rabbits, dogs, horses and buffaloes are reported to be the few low susceptibility species to prion diseases; this book's MD studies on these species are clearly helpful to understand the mechanism underlying the resistance to prion diseases. PrP(1-120) usually has no clear molecular structures; this book also studies this unstructured region through MD and especially MM techniques from the global optimization point of view.This book is ideal for practitioners in computing of biophysics, biochemistry, biomedicine, bioinformatics, cheminformatics, materials science and engineering, applied mathematics and theoretical physics, information technology, operations research, biostatistics, etc. As an accessible introduction to these fields, this book is also ideal as a teaching material for students.

Molecular dynamics simulations have become instrumental in replacing our view of proteins as relatively rigid structures with the realization that they were dynamic systems, whose internal motions play a functional role. Over the years, such simulations have become a central part of biophysics. Applications of molecular dynamics in biophysics range over many areas. They are used in the structure determination of macromolecules with x-ray and NMR data, the modelling of unknown structures from their sequence, the study of enzyme mechanisms, the estimation of ligand-binding free energies, the evaluation of the role of conformational change in protein function, and drug design for targets of known structures. The widespread application of molecular dynamics and related methodologies suggests that it would be useful to have available an introductory self-contained course by which students with a relatively limited background in chemistry, biology and computer literacy, can learn the fundamentals of the field. This Guide to Biomolecular Simulations tries to fill this need. The Guide consists of six chapters which provide the fundamentals of the field and six chapters which introduce the reader to more specialized but important applications of the methodology.

This volume presents a review of the latest numerical techniques used to identify ligand binding and protein complexation sites. It should be noted that there are many other theoretical studies devoted to predicting the activity of specific proteins and that useful protein data can be found in numerous databases. The aim of advanced computational techniques is to identify the active sites in specific proteins and moreover to suggest a generalized mechanism by which such protein-ligand (or protein-protein) interactions can be effected. Developing such tools is not an easy task – it requires extensive expertise in the area of molecular biology as well as a firm grasp of numerical modeling methods. Thus, it is often viewed as a prime candidate for interdisciplinary research.

This monograph is the first easy-to-read-and-understand book on prion proteins' molecular dynamics (MD) simulations and on prions' molecular modelling (MM) constructions.  It enables researchers to see what is crucial to the conformational change from normal cellular prion protein (PrPC) to diseased infectious prions (PrPSc), using MD and MM techniques. As we all know, prion diseases, caused by the body's own proteins, are invariably fatal and highly infectious neurodegenerative diseases effecting humans and almost all animals for a major public health concern. Prion contains no nucleic acids and it is a misshapen or conformation-changed protein that acts like an infectious agent; thus prion diseases are called “protein structural conformational” diseases.PrPC is predominant in α-helices but PrPSc are rich in β-sheets in the form as amyloid fibrils; so very amenable to be studied by MD techniques. Through MD, studies on the proteinstructures and the structural conversion are very important for revealing secrets of prion diseases and for structure-based drug design or discovery. Rabbits, dogs, horses and buffaloes are reported to be the few low susceptibility species to prion diseases; this book's MD studies on these species are clearly helpful to understand the mechanism underlying the resistance to prion diseases. PrP(1-120) usually has no clear molecular structures; this book also studies this unstructured region through MD and especially MM techniques from the global optimization point of view.This book is ideal for practitioners in computing of biophysics, biochemistry, biomedicine, bioinformatics, cheminformatics, materials science and engineering, applied mathematics and theoretical physics, information technology, operations research, biostatistics, etc. As an accessible introduction to these fields, this book is also ideal as a teaching material for students.