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论文题目: LTP Requires Postsynaptic PDZ-domain Interactions with Glutamate Receptor/auxiliary Protein Complexes
作者: Sheng N, Bemben MA, Díaz-Alonso J, Tao W, Shi Y, Nicoll RA
联系作者: shengnengyin@mail.kiz.ac.cn
发表年度: 2018
DOI: doi: 10.1073/pnas.1800719115
摘要:

Long-term potentiation (LTP) is a persistent strengthening of synaptic transmission in the brain and is arguably the most compelling cellular and molecular model for learning and memory. Previous work found that both AMPA receptors and exogenously expressed kainate receptors are equally capable of expressing LTP, despite their limited homology and their association with distinct auxiliary subunits, indicating that LTPis far more promiscuous than previously thought. What might these two subtypes of glutamate receptor have in common? Using a single-cell molecular replacement strategy, we demonstrate that the AMPA receptor auxiliary subunit TARP γ-8, via its PDZ-binding motif, is indispensable for both basal synaptic transmission and LTP. Remarkably, kainate receptors and their auxiliary subunits Neto proteins share the same requirement of PDZ-binding domains for synaptic trafficking and LTP. Together, these results suggest that a minimal postsynapticrequirement for LTP is the PDZ binding of glutamate receptors/auxiliary subunits to PSD scaffolding proteins

刊物名称: Proceedings of the National Academy of Sciences of the United States of America
论文出处: http://www.pnas.org/content/115/15/3948.long
影响因子: 9.504(2017年)