Structure In Protein Chemistry

The second edition of Structure in Protein Chemistry showcases the latest developments and innovations in the field of protein structure analysis and prediction. The book begins by explaining how proteins are purified and describes methods for elucidating their sequences of amino acids and defining their posttranslational modifications. Comprehensive explanations of crystallography and of noncovalent forces-ionic interactions, hydrogen bonding, and the hydrophobic effect-act as a prelude to an exhaustive description of the atomic details of the structures of proteins. The resulting understanding of protein molecular structure forms the basis for discussions of the evolution of proteins, the symmetry of the oligomeric associations that produce them, and the chemical, mathematical, and physical basis of the techniques used to study their structures. The latter include image reconstruction, nuclear magnetic resonance spectroscopy, proton exchange, optical spectroscopy, electrophoresis, covalent cross-linking, chemical modification, immunochemistry, hydrodynamics, and the scattering of light, X-radiation, and neutrons. These procedures are applied to study the folding of polypeptides and the assembly of oligomers. Biological membranes and their proteins are also discussed. Structure in Protein Chemistry, Second Edition, bridges the gap between introductory biophysical chemistry courses and research literature. It serves as a comprehensive textbook for advanced undergraduates and graduate students in biochemistry, biophysics, and structural and molecular biology. Professionals engaged in chemical, biochemical, and molecular biological research will find it a useful reference.

The second edition of Structure in Protein Chemistry showcases the latest developments and innovations in the field of protein structure analysis and prediction. The book begins by explaining how proteins are purified and describes methods for elucidating their sequences of amino acids and defining their posttranslational modifications. Comprehensive explanations of crystallography and of noncovalent forces-ionic interactions, hydrogen bonding, and the hydrophobic effect-act as a prelude to an exhaustive description of the atomic details of the structures of proteins. The resulting understanding of protein molecular structure forms the basis for discussions of the evolution of proteins, the symmetry of the oligomeric associations that produce them, and the chemical, mathematical, and physical basis of the techniques used to study their structures. The latter include image reconstruction, nuclear magnetic resonance spectroscopy, proton exchange, optical spectroscopy, electrophoresis, covalent cross-linking, chemical modification, immunochemistry, hydrodynamics, and the scattering of light, X-radiation, and neutrons. These procedures are applied to study the folding of polypeptides and the assembly of oligomers. Biological membranes and their proteins are also discussed. Structure in Protein Chemistry, Second Edition, bridges the gap between introductory biophysical chemistry courses and research literature. It serves as a comprehensive textbook for advanced undergraduates and graduate students in biochemistry, biophysics, and structural and molecular biology. Professionals engaged in chemical, biochemical, and molecular biological research will find it a useful reference.

New textbooks at all levels of chemistry appear with great regularity. Some fields like basic biochemistry, organic reaction mechanisms, and chemical thermodynamics are well represented by many excellent texts, and new or revised editions are published sufficiently often to keep up with progress in research. However, some areas of chemistry, especially many of those taught at the graduate level, suffer from a real lack of up-to-date textbooks. The most serious needs occur in fields that are rapidly changing. Textbooks in these subjects usually have to be written by scientists actually involved in the research which is advancing the field. It is not often easy to persuade such individuals to set time aside to help spread the knowledge they have accumulated. Our goal, in this series, is to pinpoint areas of chemistry where recent progress has outpaced what is covered in any available textbooks, and then seek out and persuade experts in these fields to produce relatively concise but instructive introductions to their fields. These should serve the needs of one semester or one quarter graduate courses in chemistry and biochemistry. In some cases the availability of texts in active research areas should help stimulate the creation of new courses.

This class-tested textbook gives an overview of the structure and functions of proteins and explains how amino acids form a defined structural entity with specific properties. The authors also introduce modern methods for purification and separation of proteins as well as different techniques for analyzing their structural and functional properties. A separate part of the book is devoted to enzymes and kinetics of enzymatic reactions.

Current Research in Protein Chemistry: Techniques, Structure, and Function focuses on the techniques and methods used for determining the structure and function of proteins. Topics covered range from protein folding and stability to catalysis by chimeric proteins, amino acid and peptide analysis, applications of mass spectrometry to peptide and protein analysis, and protein sequencing. This book is divided into six sections encompassing 55 chapters. The first chapter describes a novel method for protein hydrolysis by means of microwave irradiation that uses Teflon-Pyrex tubes. This is followed by a discussion of the application of high performance capillary electrophoresis to the analysis of amino acids. The sections that follow focus on mass spectrometric methods, protein sequencing, and capillary electrophoresis as well as protein stability, chimeric proteins and enzyme modifications, and protein structure prediction. The crystal structure of human interleukin-1alpha, the acid-denatured states of proteins, solubility of recombinant proteins expressed in Escherichia coli, and catalysis by chimeric proteins are considered. The reader is also introduced to peptide mapping and internal sequencing of proteins from acrylamide gels, new approaches to covalent sequence analysis, alkaline denaturation of hemoglobin, and measurements of disulfide bond stabilities in protein folding intermediates. Students and researchers interested in protein chemistry will find this book extremely helpful.

Proteins are organic compounds which are formed of amino acids that are linked together by peptides. They help the body in getting nitrogen, vitamins and sulfur. Proteins are three dimensional in their structure. Their structure can be categorized into four distinctive aspects - primary structure, secondary structure, quaternary structure and tertiary structure. As this subject is emerging at a rapid pace, the contents of this book will help the readers understand the modern concepts and applications of the subject. This book is meant for students who are looking for an elaborate reference text on protein chemistry.

Protein Structure deals with the chemistry and physics of biologically important molecules—the proteins—particularly the determination of the structure of various proteins, their thermodynamics, their kinetics, and the mechanisms of different reactions of individual proteins. The book approaches the study of protein structure in two ways: firstly, by determining the general features of protein structure, the overall size, and shape of the molecule; and secondly, by investigating the molecule internally along with the various aspects of the internal configuration of protein molecules. It describes in detail experimental methods for determining protein structure in solution, such as the hydrodynamic method, the thermodynamic optical method, and the electrochemical method. The book then explains the results of experiments carried out on insulin, lysozyme, and ribonuclease. The text notes that the experiments, carried out on native and denatured proteins as well as on derivatives prepared by chemical modification (e.g., by methylation, iodination, acetylation, etc.), can lead to greater understanding of secondary and tertiary structures of proteins of known sequence. The book is suitable for biochemists, micro-biologists, cellular researchers, or investigators involved in protein structure and other biological sciences related to muscle physiologists, geneticists, enzymologists, or immunologists.