Formation And Cooperative Behaviour Of Protein Complexes On The Cell Membrane

With the aim of providing a deeper insight into possible mechanisms of biological self-organization, this thesis presents new approaches to describe the process of self-assembly and the impact of spatial organization on the function of membrane proteins, from a statistical physics point of view. It focuses on three important scenarios: the assembly of membrane proteins, the collective response of mechanosensitive channels and the function of the twin arginine translocation (Tat) system. Using methods from equilibrium and non-equilibrium statistical mechanics, general conclusions were drawn that demonstrate the importance of the protein-protein interactions. Namely, in the first part a general aggregation dynamics model is formulated, and used to show that fragmentation crucially affects the efficiency of the self-assembly process of proteins. In the second part, by mapping the membrane-mediated forces into a simplified many-body system, the dynamic and equilibrium behaviour of interacting mechanosensitive channels is derived, showing that protein agglomeration strongly impacts its desired function. The final part develops a model that incorporates both the agglomeration and transport function of the Tat system, thereby providing a comprehensive description of this self-organizing process.

Detailed characterization of fuzzy interactions will be of central importance for understanding the diverse biological functions of intrinsically disordered proteins in complex eukaryotic signaling networks. In this volume, Peter Tompa and Monika Fuxreiter have assembled a series of papers that address the issue of fuzziness in molecular interactions. These papers provide a broad overview of the phenomenon of fuzziness and provide compelling examples of the central role played by fuzzy interactions in regulation of cellular signaling processes and in viral infectivity. These contributions summarize the current state of knowledge in this new field and will undoubtedly stimulate future research that will further advance our understanding of fuzziness and its role in biomolecular interactions.

Amino Acids, Peptides and Proteins comprises a comprehensive and critical review of significant developments at the biology and chemistry interface. Compiled by leading researchers in their subject, this volume incorporates current trends and emerging areas for example discovery and validation of novel protein/peptide biomarkers, proteins and peptides for the diagnosis and therapy of a parasite infection and surface and interface analysis of functional proteins and peptides. Appealing broadly to researchers in academia and industry, it will be of great benefit to any researcher wanting a succinct reference to developments now and looking to the future

Medicinal chemistry is both science and art. The science of medicinal chemistry offers mankind one of its best hopes for improving the quality of life. The art of medicinal chemistry continues to challenge its practitioners with the need for both intuition and experience to discover new drugs. Hence sharing the experience of drug research is uniquely beneficial to the field of medicinal chemistry. Drug research requires interdisciplinary team-work at the interface between chemistry, biology and medicine. Therefore, the topic-related series Topics in Medicinal Chemistry covers all relevant aspects of drug research, e.g. pathobiochemistry of diseases, identification and validation of (emerging) drug targets, structural biology, drugability of targets, drug design approaches, chemogenomics, synthetic chemistry including combinatorial methods, bioorganic chemistry, natural compounds, high-throughput screening, pharmacological in vitro and in vivo investigations, drug-receptor interactions on the molecular level, structure-activity relationships, drug absorption, distribution, metabolism, elimination, toxicology and pharmacogenomics. In general, special volumes are edited by well known guest editors.

Covers important aspects of wine making Discusses the composition and nutrition of wine Focuses on the findings of wine and health, based on the scientific/clinical trials Delineates the role of microbiology and biochemistry of wine Examines the toxicology and safety considerations of wine consumption Outlines various aspects of viticultural issues in wine making Discusses various applied facets of wine production and consumption.

Sponsored by the Swedish Council for Planning and Coordination of Research, these internationally renowned scholars discussed and debated the complementary effects of individual self-interest and collective group interests. The twelve chapters in this volume, representing a wide range of perspectives, are the fruit of this meeting.