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Title: The distal carboxyl terminal of rat NR3B subunit regulates NR1-1a/NR3B and NR1-2a/NR3B surface trafficking
Authors: Wee, K.S.L. 
Wee, Z.-N.
Chow, N.B.H.
Low, C.-M. 
Keywords: NMDA receptor
Surface expression
Issue Date: 2010
Citation: Wee, K.S.L., Wee, Z.-N., Chow, N.B.H., Low, C.-M. (2010). The distal carboxyl terminal of rat NR3B subunit regulates NR1-1a/NR3B and NR1-2a/NR3B surface trafficking. Neurochemistry International 57 (2) : 97-101. ScholarBank@NUS Repository.
Abstract: N-Methyl-. d-aspartate (NMDA) receptors are multi-subunit receptors formed from assembly of NR1 with NR2 and/or NR3 subunits. In this study, we investigated the role of a conserved RERLR motif present in a region within the distal carboxyl terminal of rat NR3B (between residues 952 and 984) in targeting NR1-1a/NR3B and NR1-2a/NR3B receptors to the cell surface. Surface biotinylation, confocal immunofluorescence microscopy and site-directed mutagenesis studies showed RERLR motif does not influence the surface expression of NR1-1a/NR3B NMDA receptor complex. Our bioinformatics analysis further showed this region can also exist as a coiled-coil domain. Truncation of this putative coiled-coil domain in NR3B affects surface expression of NR1-1a/NR3B and NR1-2a/NR3B receptors similarly suggesting that NR1 C1 cassette is not involved in the effect mediated by the distal carboxyl region of NR3B. This study represents the first attempt to evaluate a specific motif in regulating rat NR3B surface expression. © 2010 Elsevier Ltd.
Source Title: Neurochemistry International
ISSN: 01970186
DOI: 10.1016/j.neuint.2010.05.003
Appears in Collections:Staff Publications

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