G protein-coupled receptors (GPCRs) are the largest family of cell-surface receptors, with more than 800 members identified thus far in the human genome. This book, which lies between the fields of chemical biology, molecular pharmacology and medicinal chemistry, focuses on the relationship between the structure and function of these receptors. Divided into three parts, it starts by considering what receptor structures tell us about the mechanism of receptor activation. Part II focuses on receptor function. It discusses what the data from biophysical and mutational studies, and the analysis of the interactions of the receptor with ligands and regulator proteins, tell us about the process of signal transduction. The final part, on modelling and simulation, details new insights on the link between structure and mechanism and their implications in drug design. INDICE: Section I: GPCR crystal structures on the arena; Structure and mechanism of G protein signalling through crystal structures of rhodopsin; Mechanism of receptor activation through the crystal structures of the ligand-free GPCR opsin;Crystal structure of the human ß2 adrenergic G-protein-coupled receptor; Crystal structure of a ß 1 adrenergic G-protein-coupled receptorCrystal structure of a human A2A adenosine receptor bound to an antagonist; Class A GPCRs: Structural analysis of the binding domain of follicle stimulating hormone receptor; Class B GPCRs: Receptor activation involving ligand binding to two receptor domains; Class C GPCRs: Structures of the extracellular regions of metabotropic glutamate receptors; Section II: GPCRs are multifaceted functional machines; G protein-coupled receptor homo- and hetero-dimerization: contribution to pharmacology and function; Detection of heteromers formed by combinationsof three different receptors; Cross-talk between ionotropic and metabotropic glutamate receptors; Structural and functional basis of the crosstalk between receptors; GPCRs assemble as oligomers in the membrane, however a monomeric receptor is sufficient for G protein activation; Optical techniques to analyze real-time activation and signaling of G-protein-coupled receptors; Molecular basis of agonism revealed by fluorescence resonance energy studies; Metabotropicglutamate receptors: A paradigm of structural and functional receptor complexity; Lipid-protein interactions in GPCR-associated signaling; The role of cholesterol in GPCR signaling; Cholesterol-dependent GPCR signaling efficacy; Modulating receptor function through RAMPs: can they represent drug targets in themselves?; GRK2 Activation by Receptors; GRK2-Dependent Desensitization Downstream of G Proteins; Arrestins as multi-functional signaling adaptors; Enzyme regulation of -Arrestin-dependent signalling and trafficking of GPCRs; Section III: Modelling GPCR structure and function; Analyzing the activation mechanism of GPCRs by biophysical and computational methods; Modelling the activation mechanism of free fatty acid receptor 1; Prediction of opioid receptor oligomerization; Structural and dynamic effects of cholesterol at preferred sites of interaction with rhodopsin identified from molecular dynamics simulations; Quantifying GPCR function; Mathematical modelling of metabotropic glutamate receptors function; Modelling of G-protein-coupled receptor signaling pathways; From Structure to function to drug discovery: the view-point of a medicinal chemist
- ISBN: 978-1-84973-183-6
- Editorial: Royal Society of Chemistry
- Encuadernacion: Cartoné
- Páginas: 466
- Fecha Publicación: 31/10/2011
- Nº Volúmenes: 1
- Idioma: Inglés