Species Reactivity
Human
Specificity
Detects human GFR alpha -1 in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant human GFR alpha -2, -3, -4, or recombinant rat GFR alpha -1 is observed.
Source
Monoclonal Mouse IgG 1 Clone # 260714
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
Mouse myeloma cell line NS0-derived recombinant human GFR alpha -1
Asp25-Lys434
Accession # P56159Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Label
Unconjugated
Applications
Recommended
ConcentrationSample
Western Blot
1 µg/mL
Recombinant Human GFR alpha ‑1/GDNF R alpha ‑1 Fc Chimera (Catalog # )
Please Note: Optimal dilutions should be determined by each laboratory for each application. are available in the Technical Information section on our website.
Preparation and Storage
Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
Shipping
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.
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 alpha s 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 alpha s are differentially regulated in the central and peripheral nervous system, suggesting complementary roles for the GFR alpha s in mediating the activities of the GDNF family of neurotrophic factors.
References:
Thompson, J. et al. (1998) Mol. Cell Neurosci. 11:117.
Trupp, M. et al. (1998) Mol. Cell Neurosci. 11:47.
Baloh, R.H. et al. (1998) Proc. Natl. Acad. Sci. USA 95:5801.
Long Name:
Glial Cell line-derived Neurotrophic Factor Receptor alpha 1
Entrez Gene IDs:
2674 (Human); 25454 (Rat)
Alternate Names:
DKFZp313E1012; DKFZp686J0156; GDNF family receptor alpha 1; GDNF family receptor alpha-1; GDNF R alpha-1; GDNF receptor alpha-1; GDNFRAGFR-ALPHA-1; GDNFR-alpha-1; GDNFRMGC23045; GFR alpha1; GFR alpha-1; GFRA1; GFRa-1; GFR-alpha-1; Glial cell line-derived neurotrophic factor receptor alpha; GPI-linked anchor protein; PI-linked cell-surface accessory protein; RET ligand 1; RET1L; RETL1FLJ10561; TGF-beta related neurotrophic factor receptor 1; TGF-beta-related neurotrophic factor receptor 1; TRNR1FLJ31546
