Single-Molecule Fluorescence Spectroscopy of the Folding of a Repeat Protein

Single-Molecule Fluorescence Spectroscopy of the Folding of a Repeat Protein
Author: Sharona Cohen
Publisher: Springer
Total Pages: 70
Release: 2015-10-17
Genre: Science
ISBN: 3319095587

In this thesis single-molecule fluorescence resonance energy transfer (FRET) spectroscopy was used to study the folding of a protein that belongs to the large and important family of repeat proteins. Cohen shows that the dynamics of the expanded conformations is likely to be very fast, suggesting a spring-like motion of the whole chain. The findings shed new light on the elasticity of structure in repeat proteins, which is related to their function in binding multiple and disparate partners. This concise research summary provides useful insights for students beginning a PhD in this or a related area, and researchers entering this field.

Protein Conformational Dynamics

Protein Conformational Dynamics
Author: Ke-li Han
Publisher: Springer Science & Business Media
Total Pages: 488
Release: 2014-01-20
Genre: Medical
ISBN: 3319029703

This book discusses how biological molecules exert their function and regulate biological processes, with a clear focus on how conformational dynamics of proteins are critical in this respect. In the last decade, the advancements in computational biology, nuclear magnetic resonance including paramagnetic relaxation enhancement, and fluorescence-based ensemble/single-molecule techniques have shown that biological molecules (proteins, DNAs and RNAs) fluctuate under equilibrium conditions. The conformational and energetic spaces that these fluctuations explore likely contain active conformations that are critical for their function. More interestingly, these fluctuations can respond actively to external cues, which introduces layers of tight regulation on the biological processes that they dictate. A growing number of studies have suggested that conformational dynamics of proteins govern their role in regulating biological functions, examples of this regulation can be found in signal transduction, molecular recognition, apoptosis, protein / ion / other molecules translocation and gene expression. On the experimental side, the technical advances have offered deep insights into the conformational motions of a number of proteins. These studies greatly enrich our knowledge of the interplay between structure and function. On the theoretical side, novel approaches and detailed computational simulations have provided powerful tools in the study of enzyme catalysis, protein / drug design, protein / ion / other molecule translocation and protein folding/aggregation, to name but a few. This work contains detailed information, not only on the conformational motions of biological systems, but also on the potential governing forces of conformational dynamics (transient interactions, chemical and physical origins, thermodynamic properties). New developments in computational simulations will greatly enhance our understanding of how these molecules function in various biological events.

Single Molecule Spectroscopy

Single Molecule Spectroscopy
Author: R. Rigler
Publisher: Springer Science & Business Media
Total Pages: 375
Release: 2012-12-06
Genre: Science
ISBN: 3642565441

The topics range from single molecule experiments in quantum optics and solid-state physics to analogous investigations in physical chemistry and biophysics.

Protein Folding

Protein Folding
Author: Victor Muñoz
Publisher: Humana
Total Pages: 419
Release: 2021-11-30
Genre: Science
ISBN: 9781071617151

This volume provides comprehensive protocols on experimental and computational methods that are used to study probe protein folding reactions and mechanisms. Chapters divided into five parts detail protein engineering, protein chemistry, experimental approaches to investigate the thermodynamics and kinetics of protein folding transitions, probe protein folding at the single molecule, analysis and interpretation of computer simulations, procedures and tools for the prediction of protein folding properties. Written in the format of the highly successful Methods in Molecular Biology series, each chapter includes an introduction to the topic, lists necessary materials and reagents, includes tips on troubleshooting and known pitfalls, and step-by-step, readily reproducible protocols. Authoritative and cutting-edge, Protein Folding: Methods and Protocols aims to be a useful practical guide to researches to help further their study in this field.

Protein Folding and Misfolding

Protein Folding and Misfolding
Author: Heinz Fabian
Publisher: Springer Science & Business Media
Total Pages: 257
Release: 2011-09-18
Genre: Science
ISBN: 3642222307

Infrared spectroscopy is a new and innovative technology to study protein folding/misfolding events in the broad arsenal of techniques conventionally used in this field. The progress in understanding protein folding and misfolding is primarily due to the development of biophysical methods which permit to probe conformational changes with high kinetic and structural resolution. The most commonly used approaches rely on rapid mixing methods to initiate the folding event via a sudden change in solvent conditions. Traditionally, techniques such as fluorescence, circular dichroism or visible absorption are applied to probe the process. In contrast to these techniques, infrared spectroscopy came into play only very recently, and the progress made in this field up to date which now permits to probe folding events over the time scale from picoseconds to minutes has not yet been discussed in a book. The aim of this book is to provide an overview of the developments as seen by some of the main contributors to the field. The chapters are not intended to give exhaustive reviews of the literature but, instead to illustrate examples demonstrating the sort of information, which infrared techniques can provide and how this information can be extracted from the experimental data. By discussing the strengths and limitations of the infrared approaches for the investigation of folding and misfolding mechanisms this book helps the reader to evaluate whether a particular system is appropriate for studies by infrared spectroscopy and which specific advantages the techniques offer to solve specific problems.

Handbook of Single Molecule Fluorescence Spectroscopy

Handbook of Single Molecule Fluorescence Spectroscopy
Author: Chris Gell
Publisher: Oxford University Press on Demand
Total Pages: 279
Release: 2006-08-17
Genre: Science
ISBN: 0198529422

This is a practical introduction to single molecule fluorescence experiments, the analysis of the data, and applications of the techniques to the study of biological structure and function.

Handbook of Single Molecule Fluorescence Spectroscopy

Handbook of Single Molecule Fluorescence Spectroscopy
Author: Chris Gell
Publisher: OUP Oxford
Total Pages: 278
Release: 2006-08-17
Genre: Science
ISBN: 9780198529422

This book is aimed at providing a practical introduction to single molecule fluorescence experiments, the analysis of the data, and applications of the techniques to the study of biological structure and function. The techniques have wide applications in biology, and underpin some aspects of nanotechnology and quantum information processing.

Single Molecule Dynamics in Life Science

Single Molecule Dynamics in Life Science
Author: Toshio Yanagida
Publisher: John Wiley & Sons
Total Pages: 347
Release: 2008-11-24
Genre: Science
ISBN: 3527312889

In this first comprehensive resource to cover the application of single molecule techniques to biological measurements, the pioneers in the field show how to both set up and interpret a single molecule experiment. Following an introduction to single molecule measurements and enzymology, the expert authors consider molecular motors and mechanical properties before moving on to the applications themselves. Detailed discussions of studies on protein enzymes, ribozymes and nucleic acids are also included.

Comprehensive Biophysics

Comprehensive Biophysics
Author:
Publisher: Academic Press
Total Pages: 3533
Release: 2012-04-12
Genre: Science
ISBN: 0080957188

Biophysics is a rapidly-evolving interdisciplinary science that applies theories and methods of the physical sciences to questions of biology. Biophysics encompasses many disciplines, including physics, chemistry, mathematics, biology, biochemistry, medicine, pharmacology, physiology, and neuroscience, and it is essential that scientists working in these varied fields are able to understand each other's research. Comprehensive Biophysics, Nine Volume Set will help bridge that communication gap. Written by a team of researchers at the forefront of their respective fields, under the guidance of Chief Editor Edward Egelman, Comprehensive Biophysics, Nine Volume Set provides definitive introductions to a broad array of topics, uniting different areas of biophysics research - from the physical techniques for studying macromolecular structure to protein folding, muscle and molecular motors, cell biophysics, bioenergetics and more. The result is this comprehensive scientific resource - a valuable tool both for helping researchers come to grips quickly with material from related biophysics fields outside their areas of expertise, and for reinforcing their existing knowledge. Biophysical research today encompasses many areas of biology. These studies do not necessarily share a unique identifying factor. This work unites the different areas of research and allows users, regardless of their background, to navigate through the most essential concepts with ease, saving them time and vastly improving their understanding The field of biophysics counts several journals that are directly and indirectly concerned with the field. There is no reference work that encompasses the entire field and unites the different areas of research through deep foundational reviews. Comprehensive Biophysics fills this vacuum, being a definitive work on biophysics. It will help users apply context to the diverse journal literature offering, and aid them in identifying areas for further research Chief Editor Edward Egelman (E-I-C, Biophysical Journal) has assembled an impressive, world-class team of Volume Editors and Contributing Authors. Each chapter has been painstakingly reviewed and checked for consistent high quality. The result is an authoritative overview which ties the literature together and provides the user with a reliable background information and citation resource