Cell Signaling Technology

Product Pathways - Neuroscience

NMDAR1 Antibody #4204

Applications Reactivity Sensitivity MW (kDa) Source
W IP H M R Endogenous 120 Rabbit

Applications Key:  W=Western Blotting  IP=Immunoprecipitation
Reactivity Key:  H=Human  M=Mouse  R=Rat
Species cross-reactivity is determined by Western blot.

Protocols

Specificity / Sensitivity

NMDAR1 Antibody detects endogenous levels of total NMDAR1 protein.

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to human NMDAR1. Antibodies are purified by protein A and peptide affinity chromatography.

Western Blotting

Western Blotting

Western blot analysis of extracts from U87-MG and SH-SY5Y cells, using NMDAR1 Antibody.

Background

N-methyl-D-aspartate receptor (NMDAR) forms a heterodimer of at least one NR1 and one NR2A-D subunit. Multiple receptor isoforms with distinct brain distributions and functional properties arise by selective splicing of the NR1 transcripts and differential expression of the NR2 subunits. NR1 subunits bind the co-agonist glycine and NR2 subunits bind the neurotransmitter glutamate. Activation of the NMDA receptor or opening of the ion channel allows flow of Na+ and Ca2+ ions into the cell, and K+ out of the cell (1). Each subunit has a cytoplasmic domain that can be directly modified by the protein kinase/phosphatase (2). PKC can phosphorylate the NR1 subunit (NMDAR1) of the receptor on Ser890/Ser896, and PKA can phosphorylate NR1 on Ser897 (3). The phosphorylation of NR1 by PKC decreases its affinity for calmodulin, thus preventing the inhibitory effect of calmodulin on NMDAR (4). The phosphorylation of NR1 by PKA probably counteracts the inhibitory effect of calcineurin on the receptor (5). NMDAR mediates long-term potentiation and slow postsynaptic excitation, which play central roles in learning, neurodevelopment and neuroplasticity (6).

  1. Liu, X.B. et al. (2004) J. Neurosci. 24, 8885-8895.
  2. Westphal, R.S. et al. (1999) Science 285, 93-96.
  3. Tingley, W.G. et al. (1997) J. Biol. Chem. 272, 5157-5166.
  4. Hisatsune, C. et al. (1997) J. Biol. Chem. 272, 20805-20810.
  5. Raman, I.M. et al. (1996) Neuron 16, 415-421.
  6. Makhinson, M. et al. (1999) J. Neurosci. 19, 2500-2510.

Application References

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Companion Products

This product is intended for research purposes only. The product is not intended to be used for therapeutic or diagnostic purposes in humans or animals.

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