Protein Dynamics Studied by NMR Spin Relaxation PDF Download
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Author: Peter Carr
Publisher:
ISBN:
Category :
Languages : en
Pages : 432
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Book Description
Author: Peter Carr
Publisher:
ISBN:
Category :
Languages : en
Pages : 432
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Book Description
Author: Patrik Lundström
Publisher:
ISBN:
Category :
Languages : en
Pages : 49
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Book Description
Author: John L. Markley
Publisher: Oxford University Press
ISBN: 0195357426
Category : Science
Languages : en
Pages : 375
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Book Description
This book presents a critical assessment of progress on the use of nuclear magnetic resonance spectroscopy to determine the structure of proteins, including brief reviews of the history of the field along with coverage of current clinical and in vivo applications. The book, in honor of Oleg Jardetsky, one of the pioneers of the field, is edited by two of the most highly respected investigators using NMR, and features contributions by most of the leading workers in the field. It will be valued as a landmark publication that presents the state-of-the-art perspectives regarding one of today's most important technologies.
Author: Alexandra Ahlner
Publisher: Linköping University Electronic Press
ISBN: 9175191032
Category : Nuclear magnetic resonance spectroscopy
Languages : en
Pages : 79
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Book Description
Proteins are essential for all known forms of life and in many lethal diseases protein failure is the cause of the disease. To understand proteins and the processes they are involved in, it is valuable to know their structures as well as their dynamics and interactions. The structures may not be directly inspected because proteins are too small to be visible in a light microscope, which is why indirect methods such as nuclear magnetic resonance (NMR) spectroscopy have to be utilized. This method provides atomic information about the protein and, in contrast to other methods with similar resolution, the measurements are performed in solution resulting in more physiological conditions, enabling analysis of dynamics. Important dynamical processes are the ones on the millisecond timeframe, which may contribute to interactions of proteins and their catalysis of chemical reactions, both of significant value for the function of the proteins. To better understand proteins, not only do we need to study them, but also develop the methods we are using. This thesis presents four papers about improved NMR techniques as well as a fifth where the kinase domain of ephrinB receptor 2 (EphB2) has been studied regarding the importance of millisecond dynamics and interactions for the activation process. The first paper presents the software COMPASS, which combines statistics and the calculation power of a computer with the flexibility and experience of the user to facilitate and speed up the process of assigning NMR signals to the atoms in the protein. The computer program PINT has been developed for easier and faster evaluation of NMR experiments, such as those that evaluate protein dynamics. It is especially helpful for NMR signals that are difficult to distinguish, so called overlapped peaks, and the soft- ware also converts the detected signals to the indirectly measured physical quantities, such as relaxation rate constants, principal for dynamics. Next are two new versions of the Carr-Purcell-Maiboom-Gill (CPMG) dispersion pulse sequences, designed to measure millisecond dynamics in a way so that the signals are more separated than in standard experiments, to reduce problems with overlaps. To speed up the collection time of the data set, a subset is collected and the entire data set is then reconstructed, by multi-dimensional decomposition co-processing. Described in the thesis is also a way to produce suitably labeled proteins, to detect millisecond dynamics at C? positions in proteins, using the CPMG dispersion relaxation experiment at lower protein concentrations. Lastly, the kinase domain of EphB2 is shown to be more dynamic on the millisecond time scale as well as more prone to interact with itself in the active form than in the inactive one. This is important for the receptor function of the protein, when and how it mediates signals. To conclude, this work has extended the possibilities to study protein dynamics by NMR spectroscopy and contributed to increased understanding of the activation process of EphB2 and its signaling mechanism.
Author: Melinda J. Duer
Publisher: John Wiley & Sons
ISBN: 0470999381
Category : Science
Languages : en
Pages : 592
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Book Description
This book is for those familiar with solution-state NMR who are encountering solid-state NMR for the first time. It presents the current understanding and applications of solid-state NMR with a rigorous but readable approach, making it easy for someone who merely wishes to gain an overall impression of the subject without details. This dual requirement is met through careful construction of the material within each chapter. The book is divided into two parts: "Fundamentals" and "Further Applications." The section on Fundamentals contains relatively long chapters that deal with the basic theory and practice of solid-state NMR. The essential differences and extra scope of solid-state NMR over solution-state is dealt with in an introductory chapter. The basic techniques that all chapters rely on are collected into a second chapter to avoid unnecessary repetition later. Remaining chapters in the "Fundamentals" part deal with the major areas of solid-state NMR which all solid-state NMR spectroscopists should know about. Each begins with an overview of the topic that puts the chapter in context. The basic principles upon which the techniques in the chapter rely are explained in a separate section. Each of these chapters exemplifies the principles and techniques with the applications most commonly found in current practice. The "Further Applications" section contains a series of shorter chapters which describe the NMR techniques used in other, more specific areas. The basic principles upon which these techniques rely will be expounded only if not already in the Fundamentals part.
Author: Guang Zhu
Publisher: Springer Science & Business Media
ISBN: 3642289169
Category : Science
Languages : en
Pages : 255
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Book Description
Application of NMR and Molecular Docking in Structure-Based Drug Discovery, by Jaime L. Stark and Robert Powers NMR as a Unique Tool in Assessment and Complex Determination of Weak Protein-Protein Interactions, by Olga Vinogradova and Jun Qin The Use of Residual Dipolar Coupling in Studying Proteins by NMR, by Kang Chen und Nico Tjandra NMR Studies of Metalloproteins, by Hongyan Li and Hongzhe Sun Recent Developments in 15N NMR Relaxation Studies that Probe Protein Backbone Dynamics, by Rieko Ishima Contemporary Methods in Structure Determination of Membrane Proteins by Solution NMR, by Tabussom Qureshi and Natalie K. Goto Protein Structure Determination by Solid-State NMR, by Xin Zhao Dynamic Nuclear Polarization: New Methodology and Applications, by Kong Hung Sze, Qinglin Wu, Ho Sum Tse and Guang Zhu
Author: Lu-Yun Lian
Publisher: John Wiley & Sons
ISBN: 1119972825
Category : Science
Languages : en
Pages : 345
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Book Description
Nuclear Magnetic Resonance (NMR) spectroscopy, a physical phenomenon based upon the magnetic properties of certain atomic nuclei, has found a wide range of applications in life sciences over recent decades. This up-to-date volume covers NMR techniques and their application to proteins, with a focus on practical details. Providing newcomers to NMR with practical guidance to carry out successful experiments with proteins and analyze the resulting spectra, those familiar with the chemical applications of NMR will also find it useful in understanding the special requirements of protein NMR.
Author: Gordon S. Rule
Publisher: Springer Science & Business Media
ISBN: 1402035004
Category : Science
Languages : en
Pages : 543
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Book Description
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.
Author: Kendra King Frederick
Publisher:
ISBN: 9781109847475
Category :
Languages : en
Pages : 246
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Book Description
Molecular recognition by proteins is fundamental to almost every biological process, particularly the protein associations underlying the transduction of cellular signals. Here we seek to illuminate the role of residual protein entropy in determining the free energy change associated with protein-protein interactions and use calmodulin (CaM) as a model system. CaM is a primary transducer of the calcium second messenger system. CaM interacts with more than two hundred proteins with roughly the same affinity (free energy) but vastly varying thermodynamic origins (enthalpy and entropy). To gain insight into the role that the entropy of the protein plays in binding, we employ fast sub-nanosecond dynamics as an 'entropy meter'. We examine the dynamics and thermodynamics of CaM in complex with six different targets whose binding ranges from being enthalpically-driven to entropically-driven. We find that the change in residual protein entropy of CaM upon binding is linearly related to the change in overall system entropy. This surprising result leads to the conclusion that changes in residual protein entropy can and have been used by Nature to adjust the free energy of association between proteins. Moreover, for CaM, changes in protein entropy appear to be the dominant component of the change in total entropy. This is an unprecedented result and requires that the commonly held view that high affinity interactions are necessarily energetically dominated by specific structural interactions must be relaxed to include the structural dynamics and heterogeneity that contributes to residual protein entropy.
Author: Lawrence Berliner
Publisher: Springer
ISBN: 1489976213
Category : Science
Languages : en
Pages : 193
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Book Description
This book covers new techniques in protein NMR, from basic principles to state-of-the-art research. It covers a spectrum of topics ranging from a “toolbox” for how sequence-specific resonance assignments can be obtained using a suite of 2D and 3D NMR experiments and tips on how overlap problems can be overcome. Further topics include the novel applications of Overhauser dynamic nuclear polarization methods (DNP), assessing protein structure, and aspects of solid-state NMR of macroscopically aligned membrane proteins. This book is an ideal resource for students and researchers in the fields of biochemistry, chemistry, and pharmacology and NMR physics. Comprehensive and intuitively structured, this book examines protein NMR and new novel applications that include the latest technological advances. This book also has the features of: • A selection of various applications and cutting-edge advances, such as novel applications of Overhauser dynamic nuclear polarization methods (DNP) and a suite of 2D and 3D NMR experiments and tips on how overlap problems can be overcome • A pedagogical approach to the methodology • Engaging the reader and student with a clear, yet critical presentation of the applications
