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Science. 1995 Sep 22;269(5231):1737-40.

Domain interaction between NMDA receptor subunits and the postsynaptic density protein PSD-95.

Author information

  • 1Center for Molecular Biology (ZMBH), University of Heidelberg, Germany.

Abstract

The N-methyl-D-aspartate (NMDA) receptor subserves synaptic glutamate-induced transmission and plasticity in central neurons. The yeast two-hybrid system was used to show that the cytoplasmic tails of NMDA receptor subunits interact with a prominent postsynaptic density protein PSD-95. The second PDZ domain in PSD-95 binds to the seven-amino acid, COOH-terminal domain containing the terminal tSXV motif (where S is serine, X is any amino acid, and V is valine) common to NR2 subunits and certain NR1 splice forms. Transcripts encoding PSD-95 are expressed in a pattern similar to that of NMDA receptors, and the NR2B subunit co-localizes with PSD-95 in cultured rat hippocampal neurons. The interaction of these proteins may affect the plasticity of excitatory synapses.

PMID:
7569905
[PubMed - indexed for MEDLINE]
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