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Render Timestamp: 2025-02-21T10:56:10.577Z
Commit: a96f9d7628de39acbdefdc43be1285df87057945
XML generation date: 2024-12-06 01:01:08.514
Product last modified at: 2025-01-01T09:01:26.953Z
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PDP - Template Name: Antibody Sampler Kit
PDP - Template ID: *******4a3ef3a

Silent Synapses Antibody Sampler Kit #82760

    Product Information

    Product Description

    The Silent Synapses Antibody Sampler Kit provides an economical means of detecting the activation of AMPA-type glutamate receptors (AMPAR) using phospho-specific and control antibodies. AMPARs expression can be compared to other synaptic components including NMDA-type glutamate receptor subunit GluN1 and the synaptic scaffolding protein PSD95. The kit includes enough antibody to perform two western blot experiments with each primary antibody.

    Background

    AMPA- (α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid), kainate-, and NMDA- (N-methyl-D-aspartate) receptors are the three main families of ionotropic glutamate-gated ion channels. AMPA receptors (AMPARs) are composed of four subunits (GluA1-4), which assemble as homo- or hetero-tetramers to mediate the majority of fast excitatory transmissions in the central nervous system. AMPARs are implicated in synapse formation, stabilization, and plasticity (1). In contrast to GluA2-containing AMPARs, AMPARs that lack GluA2 are permeable to calcium (2). Post-transcriptional modifications (alternative splicing, nuclear RNA editing) and post-translational modifications (glycosylation, phosphorylation) result in a very large number of permutations, fine-tuning the kinetic properties and surface expression of AMPARs representing key pathways to mediate synaptic plasticity (3). During development and mature states, some synapses exhibit “silent synapses” that lack functional AMPAR-mediated transmission. Synapses become “unsilenced” by post-translational modification of GluAs, particularly GluA1, which alters its kinetic properties and/or surface expression while other synaptic components, such as other glutamate receptors like NMDARs and postsynaptic scaffolding proteins like PSD95, remain unaltered. Conversely, reducing the AMPAR kinetic properties and surface expression can silence synapses. Key post-translational modifications implicated in regulating these processes include phosphorylation of GluA1 at Ser831 and Ser845 (4). Research studies have implicated activity-dependent changes in AMPARs in a variety of diseases, including Alzheimer’s, amyotrophic lateral sclerosis (ALS), stroke, and epilepsy (1).
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