Human GM-CSF R alpha Antibody

Catalog #: MAB7064 Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
MAB7064-100
MAB7064-SP

Detection of GM‑CSF R alpha in Melanoma.

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Human GM-CSF R alpha Antibody Summary

Species Reactivity

Human

Specificity

Detects human GM-CSF R alpha in direct ELISA.

Source

Monoclonal Mouse IgG₁ Clone # 31909

Purification

Protein A or G purified from ascites

Immunogen

S. frugiperda insect ovarian cell line Sf 21-derived recombinant human GM-CSF R alpha
Extracellular domain

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Label

Unconjugated

Applications

Recommended Concentration

Sample

Immunohistochemistry

5-15 µg/mL

Immersion fixed paraffin-embedded sections of Melanoma

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

Immunohistochemistry

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Detection of GM‑CSF R alpha in Melanoma. GM‑CSF R alpha was detected in immersion fixed paraffin-embedded sections of Melanoma using Mouse Anti-Human GM‑CSF R alpha Monoclonal Antibody (Catalog # MAB7064) at 5 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Mouse IgG VisUCyte™ HRP Polymer Antibody (Catalog # VC001). Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using VisUCyte Antigen Retrieval Reagent-Basic (Catalog # VCTS021). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to cell surface in cancer cells. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store 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.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: GM-CSF R alpha

Granulocyte macrophage colony stimulating factor receptor alpha (GM-CSF R alpha ), also known as CD116, is a component of the receptor complex that mediates cellular responses to GM-CSF. GM-CSF promotes the differentiation and mobilization of granulocyte-macrophage, erythroid, megakaryocyte, and eosinophil progenitors. It enhances the activation of myeloid cell effector functions and plays a role in the development of Th1 biased immune responses, allergic inflammation, and autoimmunity (1‑4). Mature human GM-CSF R alpha is an 80 kDa type I transmembrane glycoprotein that consists of a 298 amino acid (aa) extracellular domain (ECD) with two fibronectin type III domains and a juxtamembrane WSxWS motif, a 26 aa transmembrane segment, and a 54 aa cytoplasmic domain (5). Within the ECD, human GM-CSF R alpha shares approximately 33% aa sequence identity with mouse and rat GM-CSF R alpha. Alternative splicing of human GM-CSF R alpha generates several additional isoforms that lack the cytoplasmic and/or transmembrane regions. Soluble forms of the receptor retain the ability to bind GM-CSF (6, 7). GM-CSF R alpha is expressed on hematopoietic stem cells, progenitor and differentiated cells in the myeloid lineage, vascular endothelial cells, placenta, and non-hematopoietic solid tumor cells (8). GM-CSF R alpha associates with the common beta chain/CD131 ( beta _c), a 135 kDa transmembrane protein that is also the signal transducing component of the receptors for IL-3 and IL-5 (9, 10). Association with beta _c converts GM-CSF R alpha from a low affinity to a high affinity receptor for GM-CSF (9‑11). The shared usage of beta _c underlies the synergism between GM-CSF, IL-3, and IL-5 in their effects on myeloid cell differentiation and activation (1, 2).

References

Martinez-Moczygemba, M. and D.P. Huston (2003) J. Allergy Clin. Immunol. 112:653.
Fleetwood, A.J. et al. (2005) Crit. Rev. Immunol. 25:405.
Eksioglu, E.A. et al. (2007) Exp. Hematol. 35:1163.
Cao, Y. (2007) J. Clin. Invest. 117:2362.
Gearing, D.P. et al. (1989) EMBO J. 8:3667.
Pelley, J.L. et al. (2007) Exp. Hematol. 35:1483.
Raines, M.A. et al. (1991) Proc. Natl. Acad. Sci. USA 88:8203.
Chiba, S. et al. (1990) Cell Regul. 1:327.
Kitamura, T. et al. (1991) Proc. Natl. Acad. Sci. USA 88:5082.
Hayashida, K. et al. (1990) Proc. Natl. Acad. Sci. USA 87:9655.
Hoang, T. et al. (1993) J. Biol. Chem. 268:11881.

Long Name

Granulocyte Macrophage Growth Factor Receptor alpha

Entrez Gene IDs

1438 (Human); 12982 (Mouse); 102139775 (Cynomolgus Monkey)

Alternate Names

CD116 antigen; CD116; CDw116; colony stimulating factor 2 receptor alpha subunit; colony stimulating factor 2 receptor, alpha, low-affinity(granulocyte-macrophage); CSF2R; CSF2RA; CSF2RAX; CSF2RAY; CSF2RX; CSF2RY; GM-CSF R alpha; GM-CSF receptor alpha subunit; GMCSFR alpha; GMCSFR; GM-CSFRa; GM-CSF-R-alpha; GMCSFR-alpha; GMR; GMR-alpha; granulocyte-macrophage colony-stimulating factor receptor alpha chain; granulocyte-macrophage colony-stimulating factor receptor subunit alpha; MGC3848; MGC4838