Human GFR alpha-2/GDNF R alpha-2 Antibody Summary
Ser22-Ser441
Accession # O00451
Applications
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.
Scientific Data
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Detection of GFR alpha-2/GDNF R alpha-2 by Western Blot RA mechanoreceptors utilize GFRa1 produced by neighboring neurons to respond to GDNF. Western blot analysis of cell lysates and concentrated supernatants from cultured dissociated DRG neurons of E18.5-P1 wild-type, Gfra2 null, and Gfra1 null mice. (S) The specificity of the anti-GFRa1 antibody was confirmed by the loss of a doublet at the predicted size of GFRa1 in Gfra1 null cell lysates. GFRa1 was also detected in the supernatants of wild-type and Gfra2 null cultures, but not Gfra1 null cultures, indicating that GFRa1 is shed from the membrane of DRGs of both wild-type and Gfra2 mutants. Note that the size of cleaved GFRa1 is slightly smaller than that tethered to cells, which is consistent with previous publication (Paratcha et al., 2001). Following detection of GFRa1, membranes were stripped and probed for beta -actin, which served as a loading control and confirmation that the supernatant fraction was not contaminated with cells or cellular debris (lower panel). Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/25838128), licensed under a CC-BY license. Not internally tested by R&D Systems.
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Detection of GFR alpha-2/GDNF R alpha-2 by Western Blot RA mechanoreceptors utilize GFRa1 produced by neighboring neurons to respond to GDNF. (S–V) Western blot analysis of cell lysates and concentrated supernatants from cultured dissociated DRG neurons of E18.5-P1 wild-type, Gfra2 null, and Gfra1 null mice. (T) The specificity of the anti-GFRa2 antibody was confirmed by the loss of a band ∼75 kDa in Gfra2 null cell lysates. The larger than predicted size of GFRa2 may be due to post-translational modifications. Two GFRa2 specific bands were also detected in the supernatants of wild-type and Gfra1 null cultures, but not Gfra2 null cultures, indicating that GFRa2 is also shed from DRG cell membranes. The size of cleaved GFRa2 is also smaller than that tethered to cells. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/25838128), licensed under a CC-BY license. Not internally tested by R&D Systems.
Reconstitution Calculator
Preparation and Storage
- 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-2/GDNF R alpha-2
Glial cell line-derived growth factor (GDNF), neurturin (NTN), persephin (PSP) and artemin, distant members of theTGF-beta superfamily, are 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], also known as Trn R1 or GFR alpha -2, also known as Trn R2). 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 or NTN to membrane-associated GFR alpha -1 or GFR alpha -2 initiates the association with and activation of the Ret tyrosine kinase.
Human GFR alpha -2 cDNA encodes a 464 amino acid (aa) residue protein with a putative N-terminal 21 aa residue hydrophobic signal peptide. Like other GPI-linked proteins, human GFR alpha -2 has a C-terminal hydrophobic region which is preceded by a three aa residue (GPS) GPI-binding site. Human GFR alpha -2 shares 96.5% amino acid identity with mouse GFR alpha -2. 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.
- 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.
- Baloh, R.H. et al. (1998) Neuron 21:1291.
Product Datasheets
Citation for Human GFR alpha-2/GDNF R alpha-2 Antibody
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
1 Citation: Showing 1 - 1
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Trophic factor modulation of cocaine- and amphetamine-regulated transcript peptide expression in explant cultured guinea-pig cardiac neurons.
Authors: Girard BM, Young BA, Buttolph TR, Locknar SA, White SL, Parsons RL
Neuroscience, 2006-03-03;139(4):1329-41.
Species: Guinea Pig
Sample Types: Whole Cells
Applications: ICC
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