Molecular Conformation and Biological Interactions
Author | : Sivaraj Ramaseshan |
Publisher | : |
Total Pages | : 742 |
Release | : 1991 |
Genre | : Biochemistry |
ISBN | : |
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Author | : Sivaraj Ramaseshan |
Publisher | : |
Total Pages | : 742 |
Release | : 1991 |
Genre | : Biochemistry |
ISBN | : |
Author | : G. Govil |
Publisher | : Springer Science & Business Media |
Total Pages | : 226 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 3642680976 |
The determination of the three-dimensional structure of a biological molecule is the starting point in the understanding of molecular mechanisms involved in its complex biochemical reactions. The molecular architecture of multimolecular systems such as membranes and chromosomes provides the key to the fascinating field of molecular biology. Stereochemical details of biological macromolecules and their interactions with pharmacological agents form the basis for drug design. Naturally, the study of the structure and function of biological molecules has aroused tremendous interest and investigations in this area are being carried out in a large number of laboratories. The techniques used for this purpose include both experimental methods (X-ray and neutron diffraction measurements, study of NMR, ESR, vibrational and electronic spectra, ORD, CD and dipole moment measurements, biochemical modifications etc. ) and the oretical methods (quantum mechanical and classical potential energy calculations, Monte Carlo simulations and molecular graphics). F or several years now, X-ray diffraction [1] has served as our only source of infor mation on the three-dimensional arrangements of atoms in biopolymers. Fiber-diffrac tion of DNA led to the proposal of the DNA double helix. Fibers of long~hain polymers show ordering in the direction of the fibre-axis but not in the transverse plane. Accurate estimates of the dimensions of helical structures can be made using techniques on the basis of which models of biopolymers can be constructed.
Author | : Rasmus Y. Brogaard |
Publisher | : Springer Science & Business Media |
Total Pages | : 129 |
Release | : 2012-05-17 |
Genre | : Science |
ISBN | : 3642293816 |
Rasmus Brogaard's thesis digs into the fundamental issue of how the shape of a molecule relates to its photochemical reactivity. This relation is drastically different from that of ground-state chemistry, since lifetimes of excited states are often comparable to or even shorter than the time scales of conformational changes. Combining theoretical and experimental efforts in femto-second time-resolved photoionization Rasmus Brogaard finds that a requirement for an efficient photochemical reaction is the prearrangement of the constituents in a reactive conformation. Furthermore, he is able to show that by exploiting a strong ionic interaction between two chromophores, a coherent molecular motion can be induced and probed in real-time. This way of using bichromophoric interactions provides a promising strategy for future research on conformational dynamics.
Author | : Derek J. Chadwick |
Publisher | : John Wiley & Sons |
Total Pages | : 288 |
Release | : 2008-04-30 |
Genre | : Science |
ISBN | : 0470514094 |
Composed of contributions from experts in the chemical and biological sciences, it explores host-guest molecular interactions leading to the formation of molecular assemblies containing two or more species. Exciting applications are emerging in this field and it is expected that improved understanding of the interactions in synthetic host molecule complexes will lead to a better understanding of the more complex biological systems. Topics include biomimetic chemistry, preorganization, self-assembly, template-directed synthesis, antibiotic binding to peptides and DNA, interactions between proteins and other molecules.
Author | : Girjesh Govil |
Publisher | : |
Total Pages | : 216 |
Release | : 1981 |
Genre | : Conformational analysis |
ISBN | : 9780387107691 |
Author | : Derek J. Chadwick |
Publisher | : John Wiley & Sons |
Total Pages | : 282 |
Release | : 2008-04-30 |
Genre | : Science |
ISBN | : 0470514159 |
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.
Author | : CIBA Foundation Symposium |
Publisher | : Wiley |
Total Pages | : 296 |
Release | : 1991-05-30 |
Genre | : Science |
ISBN | : 9780471929581 |
Composed of contributions from experts in the chemical and biological sciences, it explores host-guest molecular interactions leading to the formation of molecular assemblies containing two or more species. Exciting applications are emerging in this field and it is expected that improved understanding of the interactions in synthetic host molecule complexes will lead to a better understanding of the more complex biological systems. Topics include biomimetic chemistry, preorganization, self-assembly, template-directed synthesis, antibiotic binding to peptides and DNA, interactions between proteins and other molecules.
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.
Author | : Bruce Alberts |
Publisher | : |
Total Pages | : 0 |
Release | : 2002 |
Genre | : Cytology |
ISBN | : 9780815332183 |
Author | : Herbert Waldmann |
Publisher | : Springer Science & Business Media |
Total Pages | : 248 |
Release | : 2013-03-09 |
Genre | : Medical |
ISBN | : 3662053144 |
Based on the international workshop on 'Small Molecule - Protein Interactions' held in Berlin, April 24-26, 2002, researchers from industry and academic laboratories describe novel and efficient ways selecting promising new drug targets and developing small molecule inhibitors against them. The structure of the book corresponds to the different aspects of the drug discovery process. All chapters are written by leading experts in the field, who present and discuss the most recent state-of-the-art tools and techniques for the development of novel drugs. The value of the book lies in surveying and summarizing the approaches taken by different companies and institutions giving the reader a balanced view on the use of the latest techniques on the one hand and experience-based assistance in selecting appropriate tools for their own work on the other hand.