Asymmetrical allocation of NMDA receptor epsilon2 subunits in hippocampal circuitry |
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| Authors: | Kawakami Ryosuke Shinohara Yoshiaki Kato Yuichiro Sugiyama Hiroyuki Shigemoto Ryuichi Ito Isao |
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| Institution: | Department of Molecular Biology, Graduate School of Medical Science, Kyushu University, Fukuoka 812-8582, Japan. |
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| Abstract: | Despite its implications for higher order functions of the brain, little is currently known about the molecular basis of left-right asymmetry of the brain. Here we report that synaptic distribution of N-methyl-D-aspartate (NMDA) receptor GluRepsilon2 (NR2B) subunits in the adult mouse hippocampus is asymmetrical between the left and right and between the apical and basal dendrites of single neurons. These asymmetrical allocations of epsilon2 subunits differentiate the properties of NMDA receptors and synaptic plasticity between the left and right hippocampus. These results provide a molecular basis for the structural and functional asymmetry of the mature brain. |
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