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GST-Rab8 interacts with the Icm/Dot substrate LidA in L. pneumophila lysates. GST fusions proteins of Rab8 wild-type (wt) or constitutive active (ca; Rab8Q74L36) were used to precipitate binding partners in L. pneumophila lysates. Protein bands eluting from washed Rab8-coated beads but not from control beads were identified by LC-MS/MS as the Icm/Dot substrate LidA, the Rab1 GEF SidM and a putative tellurite resistance protein (TRP).
