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    Science. 2001 Mar 2;291(5509):1793-6.

    Structural mechanism of endosome docking by the FYVE domain.

    Kutateladze T, Overduin M.

    Department of Pharmacology, University of Colorado Health Sciences Center, Denver, CO 80262, USA. tatiana.kutateladze@uchsc.edu

    The recruitment of trafficking and signaling proteins to membranes containing phosphatidylinositol 3-phosphate [PtdIns(3)P] is mediated by FYVE domains. Here, the solution structure of the FYVE domain of the early endosome antigen 1 protein (EEA1) in the free state was compared with the structures of the domain complexed with PtdIns(3)P and mixed micelles. The multistep binding mechanism involved nonspecific insertion of a hydrophobic loop into the lipid bilayer, positioning and activating the binding pocket. Ligation of PtdIns(3)P then induced a global structural change, drawing the protein termini over the bound phosphoinositide by extension of a hinge. Specific recognition of the 3-phosphate was determined indirectly and directly by two clusters of conserved arginines.

    PMID: 11230696 [PubMed - indexed for MEDLINE]

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