Pin1 Binding to Phosphorylated PSD-95 Regulates the Number of Functional Excitatory Synapses
نویسندگان
چکیده
منابع مشابه
The postsynaptic NMDA-receptor--PSD-95 signaling complex in excitatory synapses of the brain.
Excitatory synapses of the brain use as neurotransmitter the amino acid glutamate, which is released in packets from the presynaptic terminal. The postsynaptic membrane is specialized for the reception of glutamate signals and the transduction of these signals into the postsynaptic cell. Containing a high concentration of glutamate receptors and associated cytoskeletal and signaling proteins, t...
متن کاملPhosphorylation of the postsynaptic density-95 (PSD-95)/discs large/zona occludens-1 binding site of stargazin regulates binding to PSD-95 and synaptic targeting of AMPA receptors.
Dynamic regulation of AMPA-type receptors at the synapse is proposed to play a critical role in alterations of the synaptic strength seen in cellular models of learning and memory such as long-term potentiation in the hippocampus. Stargazin, previously identified as an AMPA receptor (AMPAR)-interacting protein, is critical for surface expression and synaptic targeting of AMPARs. Stargazin inter...
متن کاملA balance between excitatory and inhibitory synapses is controlled by PSD-95 and neuroligin.
Factors that control differentiation of presynaptic and postsynaptic elements into excitatory or inhibitory synapses are poorly defined. Here we show that the postsynaptic density (PSD) proteins PSD-95 and neuroligin-1 (NLG) are critical for dictating the ratio of excitatory-to-inhibitory synaptic contacts. Exogenous NLG increased both excitatory and inhibitory presynaptic contacts and the freq...
متن کاملThe phosphoinositide 3-phosphatase MTMR2 interacts with PSD-95 and maintains excitatory synapses by modulating endosomal traffic.
MTMR2 is a 3-phosphatase specific for the phosphoinositides PI(3)P and PI(3,5)P(2), which are mainly present on endosomes. Mutations in the MTMR2 gene in Schwann cells lead to a severe demyelinating peripheral neuropathy known as Charcot-Marie-Tooth disease type 4B1. MTMR2 expression is also detected in peripheral and central neurons, but neural functions of MTMR2 remain unclear. Here, we repor...
متن کاملDelineation of additional PSD-95 binding domains within NMDA receptor NR2 subunits reveals differences between NR2A/PSD-95 and NR2B/PSD-95 association.
N-methyl-D-aspartate (NMDA) receptors are clustered at synapses via their association with the PSD-95 (post-synaptic density-95) membrane associated guanylate kinase (MAGUK) family of scaffolding proteins. PSD-95 is the best characterized of this family. It is known to associate with NMDA receptor NR2 subunits via a conserved ES(E/D)V amino acid sequence located at their C-termini and thus to p...
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ژورنال
عنوان ژورنال: Frontiers in Molecular Neuroscience
سال: 2020
ISSN: 1662-5099
DOI: 10.3389/fnmol.2020.00010