Download or read book The Conformational Universe of Proteins and Peptides written by Marilisa Leone and published by Mdpi AG. This book was released on 2021-11-25 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proteins represent one of the most abundant classes of biological macromolecules and play crucial roles in a vast array of physiological and pathological processes. The knowledge of the 3D structure of a protein, as well as the possible conformational transitions occurring upon interaction with diverse ligands, are essential to fully comprehend its biological function. In addition to globular, well-folded proteins, over the past few years, intrinsically disordered proteins (IDPs) have received a lot of attention. IDPs are usually aggregationprone and may form toxic amyloid fibers and oligomers associated with several human pathologies. Peptides are smaller in size than proteins but similarly represent key elements of cells. A few peptides are able to work as tumor markers and find applications in the diagnostic and therapeutic fields. The conformational analysis of bioactive peptides is important to design novel potential drugs acting as selective modulators of specific receptors or enzymes. Nevertheless, synthetic peptides reproducing different protein fragments have frequently been implemented as model systems in folding studies relying on structural investigations in water and/or other environments. This book contains contributions (seven original research articles and five reviews published in the journal Molecules) on the above-described topics and, in detail, it includes structural studies on globular folded proteins, IDPs and bioactive peptides. These works were conducted usingdifferent experimental methods.

Download or read book Conformation in Biology and Drug Design written by Sidney Udenfriend and published by Elsevier. This book was released on 2014-05-10 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Peptides: Analysis, Synthesis, Biology, Volume 7: Conformation in Biology and Drug Design focuses on the analysis of peptides, emphasizing the use of physical methods in peptide conformational analysis and the relationship of conformational properties of peptides to biological properties. This book consists of nine chapters. Chapter 1 provides a brief overview of the perspective on the application of physical methods to peptide conformational analysis. The use of circular dichroism (CD) spectroscopy to examine the conformational properties of peptides in solution is elaborated in Chapter 2, while the use of fluorescence spectroscopy to examine the special relationships of aromatic side-chain groups to one another is discussed in Chapter 3. In Chapter 4, the use of various theoretical methods to calculate the conformations of peptides is described. The methods used to stimulate peptide conformations and dynamics are outlined in Chapter 5. The last four chapters examine various aspects of the use of nuclear magnetic resonance (NMR) in peptide conformational analysis. This volume is suitable for biologists, specialists, and researchers interested in peptides and proteins.

Download or read book Protein Conformation written by Linda B. Roswell and published by Nova Publishers. This book was released on 2008 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Protein structure is the characteristic 3-dimensional shape of a protein, imposed upon it by the secondary and tertiary structure of the peptide chain. This stage in the structure of a protein describes the highest level of organisation in overall structure assumed by multimeric proteins (aggregates of more than one polypeptide chain). This is the fourth folding level of protein building. This new book presents the latest research in the field.

Download or read book The World of Peptides written by Theodor Wieland and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Almost two centuries ago proteins were recognized as the primary materials (proteios = primary) oflife, but the significance and wide role of peptides (from pepsis = digestion) in practically all life pro cesses has only become apparent in the last few decades. Biologi cally active peptides are now being discovered at rapid intervals in the brain and in other organs including the heart, in the skin of amphibians and many other tissues. Peptides and peptide-like compounds are found among toxins and antibiotics. It is unlikely that this process, an almost explosive broadening of the field, will come to a sudden halt. By now it is obvious that Nature has used the combination of a small to moderate number of amino acids to generate a great variety of agonists with specific and often highly sophisticated functions. Thus, peptide chemistry must be regarded as a discipline in its own right, a major branch of biochemistry, fairly separate from the chemistry of proteins. Because of the important role played by synthesis both in the study and in the practical preparation of peptides, their area can be considered as belonging to bio-organic chemistry as well. The already overwhelming and still increasing body of know ledge renders an account of the history of peptide chemistry more and more difficult. It appears therefore timely to look back, to take stock and to recall the important stages in the development of a new discipline.

Download or read book Introduction to Peptides and Proteins written by Ulo Langel and published by CRC Press. This book was released on 2009-11-18 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Human cells produce at least 30,000 different proteins. Each has a specific function characterized by a unique sequence and native conformation that allows it to perform that function. While research in this post-genomic era has created a deluge of invaluable information, the field has lacked for an authoritative introductory text needed to inform

Download or read book Molecular Biology of the Cell written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Protein Conformation written by Derek J. Chadwick and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: How the amino acid sequence of a protein determines its three-dimensional structure is a major problem in biology and chemistry. Leading experts in the fields of NMR spectroscopy, X-ray crystallography, protein engineering and molecular modeling offer provocative insights into current views on the protein folding problem and various aspects for future progress.

Download or read book Amino Acids Peptides and Proteins written by J S Davies and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an ever-increasing domain of activity, Amino Acids, Peptides and Proteins provides an annual compilation of the world's research effort into this important area of biological chemistry. Comprising a comprehensive review of significant developments at this biology/chemistry interface, each volume opens with an overview of amino acids and their applications. Work on peptides is reviewed over several chapters, ranging from current trends in their synthesis and conformational and structural analysis, to peptidomimetics and the discovery of peptide-related molecules in nature. The application of advanced techniques in structural elucidation is incorporated into all chapters, whilst periodic chapters on metal complexes of amino acids, peptides and beta-lactams extend the scope of coverage. Efficient searching of specialist topics is facilitated by the sub-division of chapters into discrete subject areas, allowing annual trends to be monitored. All researchers in the pharmaceutical and allied industries, and at the biology/chemistry interface in academia will find this an indispensable reference source. Volume 36 covers literature published during 2003.

Download or read book Amino Acids Peptides and Proteins written by G C Barrett and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an ever-increasing domain of activity Amino Acids Peptides and Proteins provides an annual compilation of the world's research effort into this important area of biological chemistry. Volume 33 provides a review of literature published during 2000. Comprising a comprehensive review of significant developments at this biology/chemistry interface each volume opens with an overview of amino acids and their applications. Work on peptides is reviewed over several chapters ranging from current trends in their synthesis and conformational and structural analysis to peptidomimetics and the discovery of peptide-related molecules in nature. The application of advanced techniques in structural elucidation is incorporated into all chapters whilst periodic chapters on metal complexes of amino acids peptides and beta-lactams extend the scope of coverage. Efficient searching of specialist topics is facilitated by the sub-division of chapters into discrete subject areas allowing annual trends to be monitored. All researchers in the pharmaceutical and allied industries and at the biology/chemistry interface in academia will find this an indispensable reference source.

Download or read book Amino Acids Peptides and Proteins written by J S Davies and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an ever-increasing domain of activity, Amino Acids, Peptides and Proteins provides an annual compilation of the world's research effort into this important area of biological chemistry. Volume 34 provides a review of literature published during 2001. Comprising a comprehensive review of significant developments at this biology/chemistry interface, each volume opens with an overview of amino acids and their applications. Work on peptides is reviewed over several chapters, ranging from current trends in their synthesis and conformational and structural analysis, to peptidomimetics and the discovery of peptide-related molecules in nature. The application of advanced techniques in structural elucidation is incorporated into all chapters, whilst periodic chapters on metal complexes of amino acids, peptides and beta-lactams extend the scope of coverage. Efficient searching of specialist topics is facilitated by the sub-division of chapters into discrete subject areas, allowing annual trends to be monitored. All researchers in the pharmaceutical and allied industries, and at the biology/chemistry interface in academia will find this an indispensable reference source. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading authorities in the relevant subject areas, the series creates a unique service for the active research chemist, with regular, in-depth accounts of progress in particular fields of chemistry. Subject coverage within different volumes of a given title is similar and publication is on an annual or biennial basis.

Download or read book Amino Acids Peptides and Proteins written by J S Davies and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an ever-increasing domain of activity Amino Acids Peptides and Proteins provides an annual compilation of the world's research effort into this important area of biological chemistry. Volume 29 provides a review of literature published during 1996. Comprising a comprehensive review of significant developments at this biology/chemistry interface each volume opens with an overview of amino acids and their applications. Work on peptides is reviewed over several chapters ranging from current trends in their synthesis and conformational and structural analysis to peptidomimetics and the discovery of peptide-related molecules in nature. The application of advanced techniques in structural elucidation is incorporated into all chapters whilst periodic chapters on metal complexes of amino acids, peptides and beta-lactams extend the scope of coverage. Efficient searching of specialist topics is facilitated by the sub-division of chapters into discrete subject areas allowing annual trends to be monitored. All researchers in the pharmaceutical and allied industries and at the biology/chemistry interface in academia will find this an indispensable reference source.

Download or read book Methods in Protein Structure and Stability Analysis Conformational stability size shape and surface of protein molecules written by Vladimir N. Uversky and published by Nova Publishers. This book was released on 2007 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Characterizing Conformation Ensembles of Proteins and Peptides by Combining Spectroscopic Techniques written by Bridget Milorey and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The once central dogma of protein biophysics stated that protein function is determined by structure. There is now an enormous body of evidence disproving this notion, including the discovery of intrinsically disordered proteins and the existence of multi-functional proteins. In part I of this thesis, random coil models that were once used to predict the structures of unfolded or disordered proteins are contested. Intrinsically disordered proteins (IDPs) and regions (IDRs) are often rich with charged amino acid residues. Several lines of experimental and even computational evidence suggest that polypeptides and proteins that carry high net charges tend to adopt extended conformations, and the average end-to-end distance tends to exceed expectations for self-avoiding random coils. Herein, charged arginine (R) residues in glycine (G) capped GRRG and GRRRG are shown to induce nearest neighbor interactions (NNIs) that stabilize extended structures. In a second study of GXXG, GXXXG model peptides, protonated aspartic acid (D) was studied in GDDG and GDDDG. D is known to show a high intrinsic preference for turn-like structures, which may be important sites for early protein folding events. The results presented here indicate that repeating D sequences show strong NNIs in that turn-like structures are stabilized. In part II of this thesis, the binding interaction of the heme protein cytochrome c and liposomes containing the anionic phospholipid cardiolipin is studied for both the reduced and oxidized species of the protein. The reduced protein is not the subject of much literature, so this binding study filled an important gap in knowledge. The protein was found to bind, unfold, and then oxidize on the liposome surface. The binding process for the oxidized species of the protein was studied at slightly acidic pH, where a different binding mechanism from that at neutral pH was probed. The protein unfolding on the liposome surface led to population of a high-spin species, which may have important implications for the protein gaining peroxidase activity and initiating apoptosis (organized cell death).

Download or read book Amino Acids Peptides and Proteins written by J S Davies and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an ever-increasing domain of activity Amino Acids Peptides and Proteins provides an annual compilation of the world's research effort into this important area of biological chemistry. Volume 32 provides a review of literature published during 1999. Comprising a comprehensive review of significant developments at this biology/chemistry interface each volume opens with an overview of amino acids and their applications. Work on peptides is reviewed over several chapters ranging from current trends in their synthesis and conformational and structural analysis to peptidomimetics and the discovery of peptide-related molecules in nature. The application of advanced techniques in structural elucidation is incorporated into all chapters whilst periodic chapters on metal complexes of amino acids peptides and beta-lactams extend the scope of coverage. Efficient searching of specialist topics is facilitated by the sub-division of chapters into discrete subject areas allowing annual trends to be monitored. All researchers in the pharmaceutical and allied industries and at the biology/chemistry interface in academia will find this an indispensable reference source.

Download or read book Conformation in Fibrous Proteins and Related Synthetic Polypeptides written by R Fraser and published by Elsevier. This book was released on 2012-12-02 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conformation in Fibrous Proteins: And Related Synthetic Polypeptides provides a comprehensive and critical account of conformation in fibrous proteins and synthetic polypeptides in the solid state. Physical methods of determining conformation are discussed, and relevant results from studies of synthetic polypeptides and fibrous proteins are presented. Comprised of 18 chapters divided into three sections, this book opens with a discussion on the theory and technique of X-ray diffraction applicable to the study of conformation in fibrous materials, along with electron diffraction, electron microscopy, optical diffraction, and infrared spectrophotometry. The procedures used for conformation analysis and prediction are also outlined. The following chapters consider optimization techniques and other methods for elucidating conformation in fibrous proteins and synthetic polypeptides; the use of synthetic polypeptides as models of fibrous proteins; and conformation in fibrous proteins such as silks, collagens, myofibrillar proteins, and keratins. This monograph will be a valuable source of information for molecular biologists.

Download or read book Protein Engineering Techniques written by Krishna Mohan Poluri and published by Springer. This book was released on 2016-11-12 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: This brief provides a broad overview of protein-engineering research, offering a glimpse of the most common experimental methods. It also presents various computational programs with applications that are widely used in directed evolution, computational and de novo protein design. Further, it sheds light on the advantages and pitfalls of existing methodologies and future perspectives of protein engineering techniques.

Download or read book Amino Acids Peptides and Proteins written by J S Davies and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an ever-increasing domain of activity Amino Acids Peptides and Proteins provides an annual compilation of the world's research effort into this important area of biological chemistry. Volume 31 provides a review of literature published during 1998. Comprising a comprehensive review of significant developments at this biology/chemistry interface each volume opens with an overview of amino acids and their applications. Work on peptides is reviewed over several chapters ranging from current trends in their synthesis and conformational and structural analysis to peptidomimetics and the discovery of peptide-related molecules in nature. The application of advanced techniques in structural elucidation is incorporated into all chapters whilst periodic chapters on metal complexes of amino acids, peptides and beta-lactams extend the scope of coverage. Efficient searching of specialist topics is facilitated by the sub-division of chapters into discrete subject areas allowing annual trends to be monitored. All researchers in the pharmaceutical and allied industries and at the biology/chemistry interface in academia will find this an indispensable reference source.