Thèse en cours

Etude des bases moléculaires de « decision-making » dans la signalisation en aval des kinases de la famille SRC

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Auteur / Autrice : Elizaveta Sekretova
Direction : Olivier Destaing
Type : Projet de thèse
Discipline(s) : Biologie cellulaire
Date : Inscription en doctorat le 22/04/2024
Etablissement(s) : Université Grenoble Alpes
Ecole(s) doctorale(s) : École doctorale chimie et science du vivant
Partenaire(s) de recherche : Laboratoire : IAB : Institute for Advanced Biosciences (UGA / Inserm U1209 / CNRS UMR 5309)

Mots clés

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Résumé

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The goal of this PhD work will be to combine optogenetic activation of our optoSFKs with both proximity labelling approach (Apex, biOID) and phosphoproteomic. Our lab is expert in optogenetic control of cell signaling and has developed numerous optogenetic probes to control each members of the SFK. Proximity labelling approach (Apex, biOID) is a rapidly developing technique. It allows to identify directly in the living cell the proximate molecular environment of a protein of interest thanks to its labeling by biotinylation. The tagged proteins are then extracted and analyzed by mass spectrometry. We will couple our optoprobes with both proximity labeling analysis and also phosphoproteomic. Thus, we will be able to activate specifically a signaling event (downstream the activation of a specific optokinase) and then map both the molecular environment associated with the optoprobe and its transfer of information through identification of downstream phosphorylated proteins. The obtained data will be then analyzed through dedicated network pipe-line of interactomic networks developed jointly with Dr C. Brun from TAGC-Marseille. To our knowledge, such an experimental setup has never been published and will be a new way to redefine signaling pathways without a priori.