Immersion fixed paraffin-embedded sections of human brain (cerebellum) subjected to Antigen Retrieval Reagent-Basic (Catalog # CTS013)
Measured by its ability to neutralize the effect of Neurturin on dorsal root ganglion neurons from E10 chick embryos. 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 Neutralization Dose (ND50) is typically 0.5-2.0 µg/mL in the presence of 6 ng/mL Recombinant Human Neurturin.
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Neuron Survival in Response to Neurturin and Neutralization by Human Neurturin Antibody. Recombinant Human Neurturin (Catalog # 387-NE) supports the survival of dorsal root ganglion neurons from E10 chick embryos in a dose-dependent manner (orange line), as measured by MTT staining. Neuron survival elicited by Recombinant Human Neurturin (6 ng/mL) is neutralized (green line) by increasing concentrations of Human Neurturin Antigen Affinity-purified Polyclonal Antibody (Catalog # AF387). The ND50 is typically 0.5-2.0 µg/mL.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
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.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
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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