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Recombinant Human GFR alpha-1 Fc Chimera Protein, CF

Bio-Techne includes R&D Systems | Catalog # 714-GR

Catalog #
Size / Price

Key Product Details



Accession #

Structure / Form

Disulfide-linked homodimer




Binding Activity

Product Specifications


Mouse myeloma cell line, NS0-derived human GFR alpha-1/GDNF R alpha-1 protein
Human GFR alpha-1
Accession # NP_665736
6-His tag
N-terminus C-terminus


>90%, by SDS-PAGE under reducing conditions and visualized by silver stain.

Endotoxin Level

<0.10 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis


Predicted Molecular Mass

73.3 kDa (monomer)


88-95 kDa, reducing conditions


Measured by its binding ability in a functional ELISA.
Immobilized Recombinant Human GDNF (Catalog # 212-GD) at 1 µg/mL binds Recombinant Human GFR alpha‑1/GDNF R alpha‑1 Fc Chimera with an apparent Kd <2 nM.

Formulation, Preparation and Storage

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitute at 100 μg/mL in sterile PBS.

Reconstitution Buffer Available:
Size / Price
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.

Background: GFR alpha-1/GDNF R alpha-1

Glial cell line-derived growth factor (GDNF), neurturin (NTN), artemin and persephin are distant members of the TGF-beta  superfamily. They function as neurotrophic factors for a variety of neuronal populations in the central and peripheral nervous systems. The bioactivities of GDNF and NTN are mediated through a receptor complex composed of the non ligand-binding signaling subunit (c-Ret receptor tyrosine kinase) and either of two ligand binding subunits [GDNF receptor alpha-1 (GFR alpha-1) or GFR alpha-2]. GFR alpha-1 and -2 are members of a family of at least four cysteine-rich glycosyl-phosphatidylinositol (GPI)-linked cell surface proteins that share conserved placements of many of their cysteine residues. Binding of GDNF to membrane‑associated GFR alpha-1 or GFR alpha-2 initiates the association with and activation of the Ret tyrosine kinase. Soluble GFR alphas released enzymatically from the cell surface-associated protein with phosphatidylinositol phospholipase C, as well as recombinantly produced soluble GFR alpha-1, can also bind with high-affinity to GDNF and trigger the activation of Ret tyrosine kinase.

Human GFR alpha-1 cDNA encodes a 465 amino acid (aa) residue protein with an N-terminal 24 aa residue hydrophobic signal peptide. Like other GPI-linked proteins, human GFR alpha-1 has a C-terminal hydrophobic region which is preceded by a three aa residue (ASS) GPI-binding site. Human GFR alpha-1 shares 93% aa identity with rat GFR alpha-1. The expression of the various GFR alphas are differentially regulated in the central and peripheral nervous system, suggesting complementary roles for the GFR alphas in mediating the activities of the GDNF family of neurotrophic factors.


  1. Thompson, J. et al. (1998) Mol. Cell Neurosci. 11:117.
  2. Trupp, M. et al. (1998) Mol. Cell Neurosci. 11:47.
  3. Baloh, R.H. et al. (1998) Proc. Natl. Acad. Sci. USA 95:5801.

Long Name

Glial Cell line-derived Neurotrophic Factor Receptor alpha 1

Alternate Names

GDNF R alpha-1, GFR alpha1, GFRa-1, GFRA1

Entrez Gene IDs

2674 (Human); 14585 (Mouse); 25454 (Rat)

Gene Symbol



Additional GFR alpha-1/GDNF R alpha-1 Products

Product Documents for Recombinant Human GFR alpha-1 Fc Chimera Protein, CF

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Recombinant Human GFR alpha-1 Fc Chimera Protein, CF

For research use only