The PDZ Proteins PICK1, GRIP and Syntenin bind multiple glutamate receptor subtypes
Citation:
H. Hirbec, O. Perestenko, A. Nishimune, G. Meyer, S. Nakanishi, J.M. Henley, and K.K. Dev, The PDZ Proteins PICK1, GRIP and Syntenin bind multiple glutamate receptor subtypes, J. Biol Chem, 277, 2002, 15221 - 15224Download Item:
Abstract:
Using sequence homology searches, yeast two-hybrid assays and glutathione S-transferase (GST)-pull-down approaches we have identified a series of glutamate receptor subunits that interact differentially with the PDZ proteins GRIP, PICK1, and syntenin. GST-pull-down experiments identified more interactions than detected by yeast two-hybrid assays. We report several receptor-protein interactions, strong ones include: (i) GRIP and syntenin with mGluR7a, mGluR4a, and mGluR6; (ii) PICK1 and GRIP with mGluR3; and (iii) syntenin with all forms of GluR1–4 and mGluR7b. We further characterized the novel mGluR7a-GRIP interaction found both in yeast two-hybrid and GST-pull-down assays and observed that mGluR7a localization overlapped with GRIP with in hippocampal neurons. The wide range of targets for PICK1, GRIP, and syntenin suggests they may represent a molecular mechanism that can concentrate and/or regulate a number of different receptors at a common site on a synapse. These data also suggest that the structural determinants involved in PDZ interactions are more complex than originally envisaged.
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http://people.tcd.ie/devkDescription:
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Author: Dev, Kumlesh
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J. Biol Chem277
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(GST)-pull-down approach, Sequence homology searches, Yeast two-hybrid assays, Glutamate receptor subunits, PDZ proteins, GRIP, PICK1, SynteninSubject (TCD):
NeuroscienceMetadata
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