Recombinant Human Neuroligin 2/NLGN2 Protein, CF

R&D Systems | Catalog # 5645-NL

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Key Product Details

  • R&D Systems NS0-derived Recombinant Human Neuroligin 2/NLGN2 Protein (5645-NL)
  • Quality control testing to verify active proteins with lot specific assays by in-house scientists
  • All R&D Systems proteins are covered with a 100% guarantee

Source

NS0

Accession Number

EAW90197

Applications

Bioactivity
View all Neuroligin 2/NLGN2 Proteins and Enzymes »

Product Specifications

Source

Mouse myeloma cell line, NS0-derived human Neuroligin 2/NLGN2 protein
Gln15-Ser660, with a C-terminal 6-His tag

Purity

>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.

Endotoxin Level

<0.01 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

No results obtained: Gln15 predicted

Predicted Molecular Mass

72 kDa

SDS-PAGE

85-95 kDa, reducing conditions

Activity

Measured by its binding ability in a functional ELISA.
When Recombinant Human Neuroligin 2/NLGN2 is immobilized at 1.5 μg/mL, Recombinant Human Neurexin 1 beta /NXRN1b Fc Chimera (Catalog # 5268-NX) binds with an apparent Kd <10 nM.

Formulation, Preparation, and Storage

5645-NL
Formulation Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.
Reconstitution

Reconstitute at 400 μg/mL in PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Calculators

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: Neuroligin 2/NLGN2

Neuroligin 2 (NLGN2) is one of several type I transmembrane Neuroligins that are expressed on neuronal postsynaptic densities. Neuroligins play an important role in synaptic development and function (1). Mature human Neuroligin 2 is a 105 kDa protein that consists of a 663 amino acid (aa) extracellular domain (ECD) with a catalytically inactive cholinesterase-like domain, a 21 aa transmembrane segment, and a 137 aa cytoplasmic tail (2, 3). Within the ECD, human Neuroligin 2 shares 98% aa sequence identity with mouse and rat Neuroligin 2. Alternate splicing generates an isoform with a 17 aa insertion at splice site A within the ECD (2). This recombinant protein does not contain the splice site A insert (-SS A). Neuroligin 2 is expressed on neurons in the brain and also on pancreatic beta  cells where it facilitates insulin secretion (2, 4, 5). The -SS A isoform is uniformly expressed among inhibitory and excitatory synapses, while the +SS A isoform is enriched at inhibitory GABAergic synapses (4, 6, 7). Neuroligin 2 clusters at postsynaptic densities in association with other postsynaptic proteins including S-SCAM, PSD-95, gephyrin, and Neuroligin 3 (4, 8-10). Synaptic maturation is promoted by the binding of Neuroligin 2 with presynaptic Neurexins, and these interactions are restricted to particular combinations of isoforms of the binding partners (11-15). Neuroligin 2 interacts with the alpha and beta forms of Neurexin 1, 2, and 3 (14). Its -SS A and +SS A isoforms are bound equally well by Neurexin 1 beta isoforms (-SS4 or +SS4), although only the Neurexin 1 beta +SS4 isoform can induce development of Neuroligin 2-dependent GABAergic contacts (7, 15).

References

  1. Sudhof, T.C. (2008) Nature 455:903.
  2. Ichtchenko, K. et al. (1996) J. Biol. Chem. 271:2676.
  3. Koehnke, J. et al. (2008) Proc. Natl. Acad. Sci. 105:1873.
  4. Varoqueaux, F. et al. (2004) Eur. J. Cell Biol. 83:449.
  5. Suckow, A.T. et al. (2008) Endocrinology 149:6006.
  6. Graf, E.R. et al. (2004) Cell 119:1013.
  7. Chih, B. et al. (2006) Neuron 51:171.
  8. Sumita, K. et al. (2007) J. Neurochem. 100:154.
  9. Irie, M. et al. (1997) Science 277:1511.
  10. Budreck, E.C. and P. Scheiffele (2008) Eur. J. Neurosci. 26:1738.
  11. Chih, B. et al. (2005) Science 307:1324.
  12. Chubykin, A.A. et al. (2007) Neuron 54:919.
  13. Hines, R.M. et al. (2008) J. Neurosci. 28:6055.
  14. Kang, Y. et al. (2008) J. Biol. Chem. 283:2323.
  15. Graf, E.R. et al. (2006) J. Neurosci. 26:4256.

Alternate Names

NLGN2

Entrez Gene IDs

57555 (Human); 216856 (Mouse); 117096 (Rat)

Gene Symbol

NLGN2

UniProt

EAW90197

Additional Neuroligin 2/NLGN2 Products

Product Documents for Recombinant Human Neuroligin 2/NLGN2 Protein, CF

Certificate of Analysis

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Product Specific Notices for Recombinant Human Neuroligin 2/NLGN2 Protein, CF

For research use only

Related Research Areas

Neuronal Markers

Citations for Recombinant Human Neuroligin 2/NLGN2 Protein, CF

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