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    Nat Cell Biol. 2003 Jun;5(6):520-30.

    NMDA receptor trafficking through an interaction between PDZ proteins and the exocyst complex.

    Sans N, Prybylowski K, Petralia RS, Chang K, Wang YX, Racca C, Vicini S, Wenthold RJ.

    Source

    Laboratory of Neurochemistry, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Building 50, Room 4146, 50 South Drive, Bethesda, MD 20892-8027, USA. sansn@nidcd.nih.gov

    Abstract

    NMDA (N-methyl-D-aspartate) receptors (NMDARs) are targeted to dendrites and anchored at the post-synaptic density (PSD) through interactions with PDZ proteins. However, little is known about how these receptors are sorted from the endoplasmic reticulum and Golgi apparatus to the synapse. Here, we find that synapse-associated protein 102 (SAP102) interacts with the PDZ-binding domain of Sec8, a member of the exocyst complex. Our results show that interactions between SAP102 and Sec8 are involved in the delivery of NMDARs to the cell surface in heterologous cells and neurons. Furthermore, they suggest that an exocyst-SAP102-NMDAR complex is an important component of NMDAR trafficking.

    Comment in

    • The return of the exocyst. [Nat Cell Biol. 2003]
    PMID:
    12738960
    [PubMed - indexed for MEDLINE]

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