Recombinant Mouse GM-CSF R alpha Protein, CF

Catalog #: 6130-GR Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
6130-GR-050

R&D Systems Recombinant Proteins and Enzymes

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Summary Product Datasheets Carrier Free Data Images Reconstitution Calculator Background Related Research Areas

Recombinant Mouse GM-CSF R alpha Protein, CF Summary

Product Specifications

Purity

>95%, by SDS-PAGE under reducing conditions and visualized by silver stain

Endotoxin Level

<0.01 EU per 1 μg of the protein by the LAL method.

Activity

Measured by its ability to inhibit GM-CSF-dependent proliferation of DA3 mouse myeloma cells. The ED₅₀ for this effect is 0.5‑3 μg/mL in the presence of 0.1 ng/mL of rmGM-CSF.

Source

Mouse myeloma cell line, NS0-derived mouse GM-CSF R alpha protein
Leu30-Pro327, with a C-terminal 6-His tag

Accession #

NP_034100

N-terminal Sequence
Analysis

Leu30

Predicted Molecular Mass

32.8 kDa

SDS-PAGE

55-65 kDa, reducing conditions

Product Datasheets

6130-GR

Product Datasheet

COA

SDS

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

6130-GR

Formulation	Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution	Reconstitute at 500 μg/mL in PBS.
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.

Reconstitution Calculator

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 mouse 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 21 aa transmembrane segment, and a 40 aa cytoplasmic domain (5). Within the ECD, mouse GM-CSF R alpha shares approximately 33% and 58% aa sequence identity with human and rat GM-CSF R alpha, respectively. Soluble forms of the human 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.
Park, L.S. et al. (1992) Proc. Natl. Acad. Sci. 89:4295.
Pelley, J.L. et al. (2007) Exp. Hematol. 35:1483.
Raines, M.A. et al. (1991) Proc. Natl. Acad. Sci. 88:8203.
Chiba, S. et al. (1990) Cell Regul. 1:327.
Kitamura, T. et al. (1991) Proc. Natl. Acad. Sci. 88:5082.
Hayashida, K. et al. (1990) Proc. Natl. Acad. Sci. 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