Objetivo
The aim of this project is to devise new chemical probes to investigate specific protein-protein interactions in neurons. The probes include caged phosphopeptides, which are fluorescently labelled to enable, for the first time, site and time specific perturbation of receptor trafficking and stabilisation at the level of individual synapses.
This project represents a unique combination of advanced chemistry with high-resolution imaging. We will concentrate on processes involved in the regulation of synaptic transmission at excitatory glutamatergic synapses. Namely, the main focus will be on interfering with the interaction between AMPA type glutamate receptors and the associated scaffold proteins PICK and GRIP. Phosphorylation dependent regulation of this interaction is indeed emerging as a key player in the processes of synaptic plasticity thought to underlie learning and memory.
The first goal of the work in the Imperiali laboratory will involve synthesis of a family of fluorescently labelled caged phosphopep tides. The tools developed in the Imperiali group will then be used in the Choquet laboratory to investigate the rules underlying receptor trafficking in multiphoton and single molecule imaging experiments combined with electrophysiological recordings of synaptic transmission.
Ámbito científico
Palabras clave
Convocatoria de propuestas
FP6-2002-MOBILITY-6
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Régimen de financiación
OIF - Marie Curie actions-Outgoing International FellowshipsCoordinador
PARIS
Francia