Objective The regulated secretory process appears to be essential for the succes of Toxoplasma. as an intracellular parasite. Moreover, this parasite represents a very interesting model for secretion studies since three different regulated secretory organelles are found within one cell. This suggests that the secreted proteins have to be sorted toward the right organelle. We are now studying the targetting of the GRA proteins in the dense granules. we have identified in GRA proteins a conserved and specific peptide sequence. We presently test by transfection experiments of Toxoplasma the involvment of this sequence in targetting a reporter protein in the dense granules. To study in more details the sorting process in Toxoplasma, we propose identify molecules which interact with GRA proteins. This work will be performed in the two-hybrid system in yeast. Four of the eight GRA genes that have been cloned in our laboratory will be used in yeast in the two-hybrid system (i) to study the possible interactions between GRA proteins themselves and (ii) to identify regulating proteins involved in their intracellular trafficking. Fields of science natural sciencesbiological sciencesbiochemistrybiomoleculesproteins Programme(s) FP4-TMR - Specific research and technological development programme in the field of the training and mobility of researchers, 1994-1998 Topic(s) 0302 - Post-doctoral research training grants TL05 - Cell Biology Call for proposal Data not available Funding Scheme RGI - Research grants (individual fellowships) Coordinator Université Libre de Bruxelles Address 67,rue des chevaux 1640 Rhode-saint-genèse Belgium See on map EU contribution € 0,00 Participants (1) Sort alphabetically Sort by EU Contribution Expand all Collapse all Not available France EU contribution € 0,00 Address See on map
