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AMPA Receptor 4 (GluA 4) (Arg860) Antibody

AMPA Receptor 4 (GluA 4) (Arg860) Antibody #3825

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Supporting Data

REACTIVITY	H M R
SENSITIVITY	Endogenous
MW (kDa)	100
SOURCE	Rabbit

Application Key:

WB-Western Blotting
IP-Immunoprecipitation

Species Cross-Reactivity Key:

H-Human
M-Mouse
R-Rat

Product Information

Product Usage Information

Application	Dilution
Western Blotting	1:1000
Immunoprecipitation	1:50

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody.

Protocol

Specificity / Sensitivity

AMPA Receptor 4 (GluR 4) (Arg860) Antibody detects endogenous levels of total GluR 4 protein.

Species Reactivity:

Human, Mouse, Rat

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Arg860 of human GluR 4. Antibodies are purified by protein A and peptide affinity chromatography.

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 comprised of four subunits (GluA 1-4), 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 GluA 2-containing AMPARs, AMPARs that lack GluA 2 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 of AMPARs. Research studies have implicated activity changes in AMPARs in a variety of diseases including Alzheimer’s, amyotrophic lateral sclerosis (ALS), stroke, and epilepsy (1).

GluR 4 containing AMPA receptors are found in synapses and GluR 4 delivery to synapses and cell surface expression is mediated through phosphorylation of Ser842 by PKA or PKC (3).

Alternate Names

amparnmdar; GPCR

Database Links

UniProt ID: P48058

Entrez-Gene Id: 2893

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