Recombinant Mouse NrCAM Protein, CF

Catalog # Availability Size / Price Qty
8425-NR-050

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Recombinant Mouse NrCAM Protein, CF Summary

Product Specifications

Purity
>95%, by SDS-PAGE with silver staining
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Measured by the ability of the immobilized protein to support the adhesion of Y‑79 human retinoblastoma cells. The ED50 for this effect is 1-4 μg/mL.
Source
Mouse myeloma cell line, NS0-derived mouse NrCAM protein
Leu30-Pro630, with a C-terminal 6-His tag
Accession #
N-terminal Sequence
Analysis
Leu30
Structure / Form
Non-covalent dimer
Predicted Molecular Mass
67 kDa
SDS-PAGE
90-120 kDa, reducing conditions

Product Datasheets

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8425-NR

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

8425-NR

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 500 μg/mL in sterile 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.
Reconstitution Calculator

Background: NrCAM

NrCAM, also known as Bravo, belongs to the L1 family of cell adhesion molecules which also includes L1CAM, Neurofascin, and CHL-1/L1CAM-2 (1). These molecules are type I transmembrane proteins that have 6 Ig-like domains and 4-5 fibronectin type III-like domains in their extracellular domain. L1 family cell adhesion molecules are expressed primarily in the nervous system where they share overlapping functions in controlling axonal growth and guidance (2). Mature mouse NrCAM is an approximately 200 kDa molecule that consists of a 1090 amino acid (aa) extracellular domain (ECD) with 6 Ig-like domains followed by 4 fibronectin type III domains; a 23 aa transmembrane segment, and a 114 aa cytoplasmic domain. Within the region of Ig-like domains, mouse NrCAM shares 91% and 96% aa sequence identity with human and rat NrCAM, respectively. Alternative splicing generates an additional isoform with short deletions in the sixth Ig-like domain and in the juxtamembrane region of the ECD. A 140 kDa soluble fragment of the ECD can be released by proteolytic cleavage (3, 4). NrCAM is expressed on cerebellar granule neurons, retinal ganglion cells (RGC), star pyramidal cells in visual cortex, thalamocortical axons, and glial cells (3, 5-10). It is found on both axons and dendritic spines (6, 8). NrCAM mediates homophilic adhesion as well as heterophilic adhesion with Contactin, Contactin-2/TAG1, Neurofascin, PTP beta zeta, and Integrin alpha 4 beta 1 (4, 11-14) and also interacts with Neuropilin-2, Plexin A3, and EphB2 (7-9). Depending on its interacting partners, NrCAM can promote or inhibit axon and neurite extension (5, 6, 10, 14) and mediate Semaphorin 3F induced neuronal growth cone collapse (8, 9). NrCAM plays an important role in the development of normal vision by regulating RGC axon pathfinding and mapping to the visual cortex (6, 7, 9). It is upregulated in papillary thyroid carcinomas and the shed form can promote tumorigenesis (4, 15).

References
  1. Sakurai, T. (2012) Mol. Cell. Neurosci. 49:351.
  2. Stoeckli, E.T. and L.T. Landmesser (1995) Neruon 14:1165.
  3. Sakurai, T. et al. (2001) J. Cell Bio. 154:1259.
  4. Conacci-Sorrell, M. et al. (2005) Cancer Res. 65:11605.
  5. Faivre-Sarrailh, C. et al. (1999) J. Cell Sci. 112:3015.
  6. Zelina, P. et al. (2005) Development 132:3609.
  7. Dai, J. et al. (2013) PLoS One 8:e73000.
  8. Demyanenko, G.P. et al. (2014) J. Neurosci. 34:11274.
  9. Demyanenko, G.P. et al. (2011) J. Neurosci. 31:1545.
  10. Feinberg, K. et al. (2010) Neuron 65:490.
  11. Mauro, V.P. et al. (1992) J. Cell Biol. 119:191.
  12. Sakurai, T. et al. (1997) J. Cell Biol. 136:907.
  13. Lustig, M. et al. (1999) Dev. Biol. 209:340.
  14. Volkmer, H. et al. (1996) J. Cell Biol. 135:1059.
  15. Gorka, B. et al. (2007) Br. J. Cancer 97:531.
Long Name
Neuronal Cell Adhesion Molecule
Entrez Gene IDs
4897 (Human); 319504 (Mouse)
Alternate Names
Bravo; hBravo; KIAA0343Neuronal surface protein Bravo; MGC138845; MGC138846; neuronal cell adhesion molecule; NgCAM-related cell adhesion molecule; ng-CAM-related; NrCAM; nr-CAM

Citation for Recombinant Mouse NrCAM Protein, CF

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. Secretomics reveals gelatinase substrates at the blood-brain barrier that are implicated in astroglial barrier function
    Authors: Burmeister, M;Fraunenstein, A;Kahms, M;Arends, L;Gerwien, H;Deshpande, T;Kuhlmann, T;Gross, CC;Naik, VN;Wiendl, H;Klingauf, J;Meissner, F;Sorokin, L;
    Science advances
    Species: Mouse
    Sample Types: Recombinant Protein
    Applications: Bioassay

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