Obiettivo Stereochemistry can be viewed as binary information, and stereocontrol as the communication of that information through space. Reliable stereochemical control is mediated by conformation, and empirically it is clear that better control of conformation yields higher stereoselectivity. In this project we propose to develop the methods of stereocontrol and apply them more generally to the problem of communicating information through space, mediated not by electronics but by conformation. We shall identify molecular fragments whose conformation is readily controlled by local stereochemistry, and which are able to propagate conformation through a molecule by a series of relayed interactions. Conformational communication is not a concept familiar in chemistry, but is central to the phenomenon of allostery in biology. In an allosteric protein, haemoglobin being the classic example, the binding of a ligand leads to a conformational change which propagates through the molecule, leading to a remote alteration of stereochemistry (conformation) and hence modulating the binding affinity of further ligands. Conformational changes in transmembrane proteins likewise communicate information between binding sites on opposite sides of the membrane. As chemists, we aim to design conformationally linked receptors and effectors and demonstrate the potential for chemical allostery in information transfer and processing. The molecules we propose to study are oligoureas, known to adopt a helical conformation, and we shall combine structural studies of these molecules with the methods of stereoselective synthesis in order to construct molecules capable of relaying, and ultimately processing, stereochemical information. Campo scientifico natural sciencesbiological sciencesbiochemistrybiomoleculesproteins Parole chiave Restricted Rotation atropisomerism stereocontrol Programma(i) FP6-MOBILITY - Human resources and Mobility in the specific programme for research, technological development and demonstration "Structuring the European Research Area" under the Sixth Framework Programme 2002-2006 Argomento(i) MOBILITY-2.1 - Marie Curie Intra-European Fellowships (EIF) Invito a presentare proposte FP6-2002-MOBILITY-5 Vedi altri progetti per questo bando Meccanismo di finanziamento EIF - Marie Curie actions-Intra-European Fellowships Coordinatore VICTORIA UNIVERSITY OF MANCHESTER Contributo UE Nessun dato Indirizzo OXFORD ROAD 10142 MANCHESTER Regno Unito Mostra sulla mappa Collegamenti Sito web Opens in new window Costo totale Nessun dato
