Measured in a cell proliferation assay using SH‑SY5Y human neuroblastoma cells. The ED50 for this effect is typically 20-80 ng/mL in the presence of Recombinant Human GFR alpha ‑2/GDNF R alpha ‑2 Fc Chimera (Catalog # 613‑FR). Measured by its binding ability in a functional ELISA. Immobilized Recombinant Human GFR alpha ‑2/GDNF R alpha ‑2 Fc Chimera (Catalog # 613-FR) at 1 μg/mL can bind Recombinant Human Neurturin with an apparent KD <3.0 nM.
Source
E. coli-derived human Neurturin protein Ala96-Val197, with an N-terminal Met
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Note
<0.01 EU per 1 μg of the protein by the LAL method.
Applications/Dilutions
Dilutions
Binding Activity
Bioactivity
Theoretical MW
11.8 kDa (monomer). 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.
Publications
Read Publications using 1297-NE/CF 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 Acetonitrile and TFA.
Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
Reconstitution Instructions
Reconstitute at 100 μg/mL in sterile 4 mM HCl.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Recombinant Human Neurturin Protein, CF
Neurturin
NRTN
NTN
Background
Neurturin is a member of the GDNF family of ligands, which include glial cell-derived neurotrophic factor (GDNF), Neurturin, Persephin, and Artemin. GDNF family proteins are distant members of the Transforming Growth Factor beta (TGF-beta ) superfamily (1-4). Similarly to other TGF-beta family proteins, Neurturin is synthesized as a precursor protein that is cleaved at the dibasic cleavage site (RXXR) to release the carboxy-terminal domain. The carboxy-terminal domain of Neurturin contains the characteristic seven conserved cysteine residues necessary for the formation of the cysteine-knot and the single interchain disulfide bond. Biologically active human Neurturin is a disulfide-linked homodimer of the carboxy-terminal 102 amino acid residues. Mature human Neurturin shares approximately 92% amino acid sequence identity with mouse Neurturin. Mature Neurturin also shares about 40% similarities with the other three members of the GDNF family ligands (2-5). Unlike other members of TGF-beta family, bioactivities of all GDNF family ligands are mediated through a unique multicomponent receptor complex composed of high affinity ligand binding component (GFR alpha -1-GFR alpha -4) and a common signaling component (cRET receptor tyrosine kinase). Each member of the GDNF family ligands has its preferred binding protein. Neurturin preferentially binds to GFR alpha -2 but can also bind GFR alpha -1 at higher concentrations (5‑8). Neurturin had been shown to promote the survival of a variety of neurons including sympathetic, sensory, and central nervous system neurons. Neurturin is expressed in both neuronal and non-neuronal tissues. It may play a role in regulating the development and maintenance of the central and peripheral nervous systems and as well as non-neuronal systems (9).
Lin, L-F.H. et al. (1993) Science 260:1130.
Kotzbauer, P.T. et al. (1996) Nature 384:467.
Milbrandt, J. et al. (1998) Neuron 20:245.
Baloh, R.H. et al. (1998) Neuron 21:1291.
Takahashi, M. (2001) Cytokine and Growth Factor Reviews12:361.
Baloh, R.H. et al. (1997) Neuron 18:793.
Jing, S. et al. (1996) Cell 85:1113.
Jing, S. et al. (1997) J. Biol. Chem. 272:33111.
Airaksinen. M. and M. Saarma (2002) Nature Review Neuroscience 3:383.
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