Recettori accoppiati a proteine G: analisi struttura/funzione di mutazioni patogenetiche
- 5 Anni 2006/2011
- 815.720€ Totale Fondi
L'attività di ogni cellula del corpo umano é praticamente regolata dall'attivazione di diverse classi di recettori proteici allocati o ancorati alla membrana cellulare. La maggior parte di questi recettori appartiene alla superfamiglia dei recettori accoppiati alle proteine-G, i quali, secondo stime correnti, costituiscono circa l'1% dei geni presenti nel genoma dei mammiferi. Un crescente numero di malattie umane è associato ad una impropria o errata regolazione della funzione svolta da questi recettori. Lo studio è centrato su tre sottofamiglie a) i recettori adrenergici, b) i recettori delle gonadotropine, e c) il recettore della vasopressina. L'approccio utilizzato integra tecniche e metodologie di chimica e biologia computazionale e bioinformatica con esperimenti di mutagenesi, biofisici e biochimici. I principali obiettivi sono: a) ottenere sufficienti informazioni, a livello molecolare, per la progettazione razionale di nuovi farmaci e la ingegnerizzazione di molecole con potenzialità curative in terapia genica e, b) elaborare modelli molecolari in grado di prevedere l'effetto funzionale di mutazioni recettoriali. Le tre linee di questo progetto convergeranno in deduzioni di ampia rilevanza e, verosimilmente, saranno estendibili ad altri recettori della stessa famiglia. I modelli ed i protocolli di simulazione computazionale connessi, una volta ottimizzati e validati sperimentalmente, verranno messi a disposizione della comunità scientifica.
Pubblicazioni Scientifiche
- 2011-05-01 BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
Dimerization and ligand binding affect the structure network of A2A adenosine receptor
- 2015-03-01 BIOINFORMATICS
WebPSN: a web server for high-throughput investigation of structural communication in biomacromolecules
- 2010-10-01 BIOORGANIC & MEDICINAL CHEMISTRY
Structure-activity relationships in 1,4-benzodioxan-related compounds. 10. Novel α1-adrenoreceptor antagonists related to openphendioxan: Synthesis, biological evaluation, and α1d computational study
- 2007-06-08 BMC STRUCTURAL BIOLOGY
In silico screening of mutational effects on enzyme-proteic inhibitor affinity: a docking-based approach
- 2010-09-01 CELLULAR AND MOLECULAR LIFE SCIENCES
Superactive mutants of thromboxane prostanoid receptor: functional and computational analysis of an active form alternative to constitutively active mutants
- 2011-04-01 CELLULAR AND MOLECULAR LIFE SCIENCES
Conserved amino acids participate in the structure networks deputed to intramolecular communication in the lutropin receptor
- 2011-09-01 CELLULAR AND MOLECULAR LIFE SCIENCES
Light on the structure of thromboxane A2 receptor heterodimers
- 2011-01-01 CHEMICAL REVIEWS
Update 1 of: Computational Modeling Approaches to Structure-Function Analysis of G Protein-Coupled Receptors
- 2009-04-01 CURRENT PROTEIN & PEPTIDE SCIENCE
Computational Modeling of Intramolecular and Intermolecular Communication in GPCRs
- 2014-12-01 DRUG DISCOVERY TODAY
Multiscale quantum chemical approaches to QSAR modeling and drug design
- 2012-06-29 EMBO JOURNAL
The KDEL receptor couples to Gαq/11 to activate Src kinases and regulate transport through the Golgi
- 2010-09-01 FASEB JOURNAL
Structural insights into retinitis pigmentosa from unfolding simulations of rhodopsin mutants
- 2013-03-01 FASEB JOURNAL
The catalytic site structural gate of adenosine deaminase allosterically modulates ligand binding to adenosine receptors
- 2007-03-06 FEBS LETTERS
Monomeric dark rhodopsin holds the molecular determinants for transducin recognition: Insights from computational analysis
- 2008-08-01 JOURNAL OF CHEMICAL INFORMATION AND MODELING
Homodimerization of neurotensin 1 receptor involves helices 1, 2, and 4: Insights from quaternary structure predictions and dimerization free energy estimations
- 2009-09-01 JOURNAL OF CHEMICAL THEORY AND COMPUTATION
Computational Screening of Rhodopsin Mutations Associated with Retinitis Pigmentosa
- 2011-04-30 JOURNAL OF COMPUTATIONAL CHEMISTRY
Wordom: A User-Friendly Program for the Analysis of Molecular Structures, Trajectories, and Free Energy Surfaces
- 2006-08-01 JOURNAL OF COMPUTER-AIDED MOLECULAR DESIGN
Inactive and active states and supramolecular organization of GPCRs: insights from computational modeling
- 2008-10-23 JOURNAL OF MEDICINAL CHEMISTRY
Target Flexibility: An Emerging Consideration in Drug Discovery and Design
- 2009-09-24 JOURNAL OF MEDICINAL CHEMISTRY
Adenosine A2A Receptor-Antagonist/Dopamine D2 Receptor-Agonist Bivalent Ligands as Pharmacological Tools to Detect A2A-D2 Receptor Heteromers
- 2007-08-02 JOURNAL OF PHYSICAL CHEMISTRY B
In silico screening of mutational effects on transmembrane helix dimerization: Insights from rigid-body docking and molecular dynamics simulations
- 2009-04-02 JOURNAL OF PHYSICAL CHEMISTRY B
Bulky Side Chains and Non-native Salt Bridges Slow down the Folding of a Cross-Linked Helical Peptide: A Combined Molecular Dynamics and Time-Resolved Infrared Spectroscopy Study
- 2008-08-01 JOURNAL OF STRUCTURAL BIOLOGY
Quaternary structure predictions and estimation of mutational effects on the free energy of dimerization of the OMPLA protein
- 2010-11-25 MOLECULAR AND CELLULAR ENDOCRINOLOGY
The luteinizing hormone receptor: Insights into structure-function relationships and hormone-receptor-mediated changes in gene expression in ovarian cancer cells
- 2009-01-01 MOLECULAR BIOSYSTEMS
Network-level analysis of light adaptation in rod cells under normal and altered conditions
- 2011-08-01 MOLECULAR ENDOCRINOLOGY
The Extreme C-Terminal Region of Gαs Differentially Couples to the Luteinizing Hormone and β2-Adrenergic Receptors
- 2013-01-01 OLIGOMERIZATION IN HEALTH AND DISEASE
Quaternary Structure Predictions and Structural Communication Features of GPCR Dimers
- 2011-03-01 PLOS COMPUTATIONAL BIOLOGY
Nucleotide Binding Switches the Information Flow in Ras GTPases
- 2010-03-10 STRUCTURE
Deciphering the Deformation Modes Associated with Function Retention and Specialization in Members of the Ras Superfamily