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Protein research is a frontier field in science. Proteins are widely distributed in plants and animals and are the principal constituents of the protoplasm of all cells, and consist essentially of combinations of a-amino acids in peptide linkages. Twenty different amino acids are commonly found in proteins, and serve as enzymes, structural elements, hormones, immunoglobulins, etc., and are involved throughout the body, and in photosynthesis. This book gathers new leading-edge research from throughout the world in this exciting and exploding field of research.
Vibrational Spectroscopy in Protein Research offers a thorough discussion of vibrational spectroscopy in protein research, providing researchers with clear, practical guidance on methods employed, areas of application, and modes of analysis. With chapter contributions from international leaders in the field, the book addresses basic principles of vibrational spectroscopy in protein research, instrumentation and technologies available, sampling methods, quantitative analysis, origin of group frequencies, and qualitative interpretation. In addition to discussing vibrational spectroscopy for the analysis of purified proteins, chapter authors also examine its use in studying complex protein systems, including protein aggregates, fibrous proteins, membrane proteins and protein assemblies. Emphasis throughout the book is placed on applications in human tissue, cell development, and disease analysis, with chapters dedicated to studies of molecular changes that occur during disease progression, as well as identifying changes in tissues and cells in disease studies. Provides thorough guidance in implementing cutting-edge vibrational spectroscopic methods from international leaders in the field Emphasizes in vivo, in situ and non-invasive analysis of proteins in biomedical and life science research more broadly Contains chapters that address vibrational spectroscopy for the study of simple purified proteins and protein aggregates, fibrous proteins, membrane proteins and protein assemblies
The authors describe basic theoretical concepts of vibrational spectroscopy, address instrumental aspects and experimental procedures, and discuss experimental and theoretical methods for interpreting vibrational spectra. It is shown how vibrational spectroscopy provides information on general aspects of proteins, such as structure, dynamics, and protein folding. In addition, the authors use selected examples to demonstrate the application of Raman and IR spectroscopy to specific biological systems, such as metalloproteins, and photoreceptors. Throughout, references to extensive mathematical and physical aspects, involved biochemical features, and aspects of molecular biology are set in boxes for easier reading. Ideal for undergraduate as well as graduate students of biology, biochemistry, chemistry, and physics looking for a compact introduction to this field.
Protein research is a frontier field in science. Proteins are widely distributed in plants and animals and are the principal constituents of the protoplasm of all cells, and consist essentially of combinations of a-amino acids in peptide linkages. Twenty different amino acids are commonly found in proteins, and serve as enzymes, structural elements, hormones, immunoglobulins, etc., and are involved throughout the body, and in photosynthesis. This book gathers new leading-edge research from throughout the world in this exciting and exploding field of research.
Theoretical Vibrational Spectroscopy of Proteins Lu Wang Under the supervision of Professor James L. Skinner At the University of Wisconsin-Madison Vibrational spectroscopy, such as linear and two-dimensional infrared (IR) spectroscopy, is widely utilized to study the structure and dynamics of peptides and proteins. Interpretation of the experiment, or a direct assignment of the complex experimental spectra to the underlying protein structure, can be difficult. Molecular dynamics (MD) simulations offer a complementary approach to provide high-resolution structural and temporal information of proteins, although they are limited by factors such as force field accuracy and are not directly comparable to spectroscopic experiments. We have developed vibrational frequency maps for proteins that generate instantaneous site frequencies directly from MD simulations. We combine the frequency maps with established nearest-neighbor frequency shift and coupling schemes and a mixed quantum/classical framework to form a theoretical strategy for calculating protein linear and 2D IR spectra in the amide I region. This theoretical method provides a means to bridge spectroscopic experiments and molecular simulations, which allows a critical assessment of MD simulations by comparison to experiment, and enables the interpretation of experimental spectra at the molecular level. In this dissertation, we present the development of the vibrational frequency maps and provide the theoretical protocol that allows the calculation of protein vibrational spectra directly from MD simulations. We validate the theoretical method by applying it to peptides with various secondary structures in aqueous solution, and apply it to a few biologically relevant problems. For instance, we have studied the thermal unfolding transition of the villin headpiece subdomain (HP36) using IR spectra calculations. We follow the unfolding process of HP36 by monitoring its spectral changes as a function of temperature. With the help of isotope labeling, we are able to capture the feature that helix 2 of HP36 loses its secondary structure before global unfolding occurs, in agreement with experiment. In collaboration with the Zanni group and the de Pablo group at University of Wisconsin, we have also carried out studies on IAPP, a peptide closely related to type 2 diabetes. By combining theoretical modeling with extensive computer simulations and spectroscopic experiments, we have investigated the structure and dynamics of IAPP in aqueous solution, in the fibril form and in the vicinity of lipid membranes.
In recent years there has been a tremendous growth in the use of vibrational spectroscopic methods for diagnosis and screening. These applications range from diagnosis of disease states in humans, such as cancer, to rapid identification and screening of microorganisms. The growth in such types of studies has been possible thanks to advances in instrumentation and associated computational and mathematical tools for data processing and analysis. This volume of Advances in Biomedical Spectroscopy contains chapters from leading experts who discuss the latest advances in the application of Fourier transform infrared (FTIR), Near infrared (NIR), Terahertz and Raman spectroscopy for diagnosis and screening in fields ranging from medicine, dentistry, forensics and aquatic science. Many of the chapters provide information on sample preparation, data acquisition and data interpretation that would be particularly valuable for new users of these techniques including established scientists and graduate students in both academia and industry.
The advent of laser-based sources of ultrafast infrared pulses has extended the study of very fast molecular dynamics to the observation of processes manifested through their effects on the vibrations of molecules. In addition, non-linear infrared spectroscopic techniques make it possible to examine intra- and intermolecular interactions and how such interactions evolve on very fast time scales, but also in some instances on very slow time scales. Ultrafast Infrared Vibrational Spectroscopy is an advanced overview of the field of ultrafast infrared vibrational spectroscopy based on the scientific research of the leading figures in the field. The book discusses experimental and theoretical topics reflecting the latest accomplishments and understanding of ultrafast infrared vibrational spectroscopy. Each chapter provides background, details of methods, and explication of a topic of current research interest. Experimental and theoretical studies cover topics as diverse as the dynamics of water and the dynamics and structure of biological molecules. Methods covered include vibrational echo chemical exchange spectroscopy, IR-Raman spectroscopy, time resolved sum frequency generation, and 2D IR spectroscopy. Edited by a recognized leader in the field and with contributions from top researchers, including experimentalists and theoreticians, this book presents the latest research methods and results. It will serve as an excellent resource for those new to the field, experts in the field, and individuals who want to gain an understanding of particular methods and research topics.
Bringing several disparate aspects of food science and analysis together in one place, Applications of Vibrational Spectroscopy to Food Science provides a comprehensive, state-of the-art text presenting the fundamentals of the methodology, as well as underlying current areas of research in food science analysis. All of the major spectroscopic techniques are also covered – showing how each one can be used beneficially and in a complementary approach for certain applications. Case studies illustrate the many applications in vibrational spectroscopy to the analysis of foodstuffs.
Simulations of two-dimensional infrared (2DIR) spectroscopy of several proteins are presented. Applications of 2DIR spectroscopy to protein folding, protein aggregation, and photosensing are reported. We demonstrate that 2DIR spectroscopy is an excellent probe of protein structure and dynamics. Our simulations predict future experiments as well as provide detailed explanations of previous experiments. We also present simulations of the related two-dimensional ultraviolet and two-dimensional stimulated resonance Raman spectroscopies, which are shown to provide complementary information to 2DIR spectroscopy. This thesis can be viewed as a guide for the design and analysis of future two-dimensional optical measurements on proteins.
A valuable tool for individuals using correlation spectroscopy and those that want to start using this technique. Noda is known as the founder of this technique, and together with Ozaki, they are the two biggest names in the area First book on 2D vibrational and optical spectroscopy - single source of information, pulling together literature papers and reveiws Growing number of applications of this methodology - book now needed for people thinking of using this technique Limitations and benefits discussed and comparisons made with 2D NMR Discusses 20 optical and vibrational spectroscopy (IR, Raman, UV, Visible)