Measured by its ability to enhance neurite outgrowth of E16-E18 rat embryonic cortical neurons. Recombinant Human Neurofascin, immobilized at 6 μg/mL on a 96-well plate, is able to significantly enhance neurite outgrowth.
Source
Human embryonic kidney cell, HEK293-derived human Neurofascin protein Ile25-Trp1039, with a C-terminal 6-His tag
<0.10 EU per 1 μg of the protein by the LAL method.
Applications/Dilutions
Dilutions
Bioactivity
Theoretical MW
116 kDa. Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
SDS-PAGE
120-140 kDa, reducing conditions
Publications
Read Publications using 8208-NF in the following applications:
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.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.
Purity
>95%, by SDS-PAGE with silver staining.
Reconstitution Instructions
Reconstitute at 500 μg/mL in sterile PBS.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Recombinant Human Neurofascin Protein, CF
DKFZp686P2250
KIAA0756FLJ46866
neurofascin homolog (chicken)
neurofascin homolog
Neurofascin
NF
NFASC
NRCAML
Background
Neurofascin, a type I transmembrane glycoprotein, is a member of the L1 family of cell adhesion molecules (CAMs) (1-4). L1CAM family members are composed of an extracellular domain (ECD) that contains six immunoglobulin (Ig)-like domains and multiple fibronectin type III repeats, followed by transmembrane and cytoplasmic domains (2, 4, 5). Multiple isoforms of Neurofascin, including NF155, NF166, NF180, and NF186, can be generated by alternative splicing with a predicted range of approximately 70 kDa to 150 kDa (4). These isoforms differ in the combination of fibronectin type III repeats, as well as in the presence of a proline-, alanine-, and threonine-rich segment (PAT domain) located just after the fourth fibronectin type III repeat (4). This recombinant human Neurofascin protein is most close to NF155 and shares 96% amino acid sequence identity with comparable regions of rat and mouse homologs. In rats, NF155 is transiently expressed by oligodendrocytes and Schwann cells during axon myelination (6, 7). NF155 clusters in paranodal regions of oligodendroglia and binds to the Caspr-Contactin complex located on the adjacent axon to form and stabilize paranodal axoglial junctions (8-11). It has been suggested that the ECD of NF155 must be cleaved from oligodendroglia membranes to form and/or stabilize the paranodal structure (12). NF155 has also been shown to promote neuronal adhesion and neurite outgrowth in rats and chickens (12-14). Alterations in NF155 expression have been associated with multiple sclerosis (15).
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Volkmer, H. et al. (1992) J. Cell Biol. 118:149.
Sherman, D.L. and P.J. Brophy (2005) Nat. Rev. Neurosci. 6:683.
Kriebel, M. et al. (2012) Int. J. Biochem. Cell Biol. 44:694.
Liu, H. et al. (2011) J. Biol. Chem. 286:797.
Collinson, J.M. et al. (1998) Glia 23:11.
Basak, S. et al. (2007) Dev. Biol. 311:408.
Charles, P. et al. (2002) Curr. Biol. 12:217.
Schafer, D.P. et al. (2004) J. Neurosci. 24:3176.
Maier, O. et al. (2005) Mol. Cell. Neurosci. 28:390.
Sherman, D.L. et al. (2005) Neuron 48:737.
Maier, O. et al. (2006) Exp. Cell Res. 312:500.
Volkmer, H. et al. (1996) J. Cell Biol. 135:1059.
Koticha, D. et al. (2005) Mol. Cell. Neurosci. 30:137.
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