Reactivity | HuSpecies Glossary |
Applications | Binding Activity, Bioactivity |
Format | Carrier-Free |
Details of Functionality | Measured by its ability to support the survival and stimulate neurite outgrowth of dissociated chick embryonic dorsal root ganglia (DRG) neurons. Davies, A.M. (1989) in Neurotrophic Factor Bioassay Using Dissociated Neurons, Nerve Growth Factor. Rush, R.A. (eds): John Willey and Sons, Ltd. 95. The ED50 for this effect is 2‑6 ng/mL. Measured by its binding ability in a functional ELISA. Immobilized rhGFR alpha 2/Fc Chimera at 1 µg/mL (100 µL/well) can bind hNeurturin with a linear range of 0.5-40 ng/mL. |
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Source | E. coli-derived human Neurturin protein
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Accession # | |||||||||
N-terminal Sequence | Ala |
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Structure / Form | Disulfide-linked homodimer |
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Protein/Peptide Type | Recombinant Proteins |
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Gene | NRTN |
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Purity | >95%, by SDS-PAGE under reducing conditions and visualized by silver stain |
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Endotoxin Note | <0.10 EU per 1 μg of the protein by the LAL method. |
Dilutions |
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Theoretical MW | 14 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. |
Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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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 PBS. |
Neurturin (NTN) is a member of the GDNF family of ligands which also includes glial cell-derived neurotrophic factor (GDNF), persephin, and artemin. GDNF family proteins are distant members of the TGF-beta superfamily and contain a conserved seven cysteine motif found in the entire family. Human NTN encodes a 197 amino acid (aa) preproprotein with a 19 aa residue putative signal peptide and a 76 aa pro region. Proteolytic cleavage of the pro-protein occurs at an RXXR consensus sequence. The native protein is a disulfide-linked homodimer with a calculated monomeric mass of about 12.5 kDa. The amino acid sequence of human NTN shares 91% identity to mouse NTN. NTN also shares about 42% similarity with GDNF. The bioactivities of all GDNF family ligands are mediated through a receptor complex composed of a high affinity ligand binding component (GFR alpha 1 - GFR alpha 4) and a common signaling component, cRET (receptor tyrosine kinase). NTN prefers to bind GFR alpha 2 but can also bind GFR alpha 1. NTN can promote the survival of a variety of neurons including sympathetic, sensory, and central nervous system neurons. The wide expression of NTN in both neuronal and non-neuronal tissues suggests that NTN may regulate the development and maintenance of the central and peripheral nervous systems and other systems.
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