Recombinant Mouse GM-CSF, Animal-Free Protein
Recombinant Mouse GM-CSF, Animal-Free Protein Summary
Animal Free Proteins
Animal-free proteins are particularly important for researchers concerned with experimental variables caused by trace animal components or mammalian pathogens. Our products generated under animal-free conditions share the same biological activities as those produced using our standard laboratory techniques.
Product Specifications
Ala18-Lys141, with an N-terminal Met
Produced using non-animal reagents in an animal-free laboratory.
Analysis
Product Datasheets
Carrier Free
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.
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.
AFL415
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS. |
| Reconstitution | Reconstitute at 0.2 mg/mL in sterile 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.
|
Animal Free Proteins
Animal-free proteins are particularly important for researchers concerned with experimental variables caused by trace animal components or mammalian pathogens. Our products generated under animal-free conditions share the same biological activities as those produced using our standard laboratory techniques.
Reconstitution Calculator
Background: GM-CSF
GM-CSF was initially characterized as a factor that can support the in vitro colony formation of granulocyte-macrophage progenitors. It is also a growth factor for erythroid, megakaryocyte, and eosinophil progenitors. GM-CSF is produced by a number of different cell types (including T cells, B cells, macrophages, mast cells, endothelial cells, fibroblasts, and adipocytes) in response to cytokine or inflammatory stimuli. On mature hematopoietic cells, GM-CSF is a survival factor for and activates the effector functions of granulocytes, monocytes/macrophages, and eosinophils (1, 2). GM-CSF promotes a Th1 biased immune response, angiogenesis, allergic inflammation, and the development of autoimmunity (3-5). It shows clinical effectiveness in ameliorating chemotherapy-induced neutropenia, and GM-CSF transfected tumor cells are utilized as cancer vaccines (6, 7). The 22 kDa glycosylated GM-CSF, similar to IL-3 and IL-5, is a cytokine with a core of four bundled alpha ‑helices (8-10). Mature mouse GM-CSF shares 49%-54% amino acid sequence identity with canine, feline, human, and porcine GM-CSF and 69% with rat GM‑CSF. GM‑CSF exerts its biological effects through a heterodimeric receptor complex composed of GM-CSF R alpha /CD116 and the signal transducing common beta chain (CD131) which is also a component of the high-affinity receptors for IL-3 and IL-5 (11, 12). In addition, GM-CSF binds a naturally occurring soluble form of GM-CSF R alpha (13). The activity of GM-CSF is species specific between human and mouse. Mouse GM-CSF is only weakly active on rat cells, although rat GM‑CSF is fully active on mouse cells (14, 15).
- Martinez-Moczygemba, M. and D.P. Huston (2003) J. Allergy Clin. Immunol. 112:653.
- Barreda, D.R. et al. (2004) Dev. Comp. Immunol. 28:509.
- Eksioglu, E.A. et al. (2007) Exp. Hematol. 35:1163.
- Cao, Y. (2007) J. Clin. Invest. 117:2362.
- Fleetwood, A.J. et al. (2005) Crit. Rev. Immunol. 25:405.
- Heuser, M. et al. (2007) Semin. Hematol. 44:148.
- Hege, K.M. et al. (2006) Int. Rev. Immunol. 25:321.
- Kaushansky, K. et al. (1992) Biochemistry 31:1881.
- Diederichs, K. et al. (1991) Science 254:1779.
- Gough, N.M. et al. (1984) Nature 309:763.
- Onetto-Pothier, N. et al. (1990) Blood 75:59.
- Hayashida, K. et al. (1990) Proc. Natl. Acad. Sci. 87:9655.
- Pelley, J.L. et al. (2007) Exp. Hematol. 35:1483.
- Oaks, M.K. et al. (1995) J. Interferon Cytokine Res. 15:1095.
- Vandenabeele, P. et al. (1990) Lymphokine Res. 9:381.
Manufacturing Specifications
Animal-Free Manufacturing ConditionsOur dedicated controlled-access animal-free laboratories ensure that at no point in production are the products exposed to potential contamination by animal components or byproducts. Every stage of manufacturing is conducted in compliance with R&D Systems' stringent Standard Operating Procedures (SOPs). Production and purification procedures use equipment and media that are confirmed animal-free.
Production
- All molecular biology procedures use animal-free media and dedicated labware.
- Dedicated fermentors are utilized in committed animal-free areas.
Purification
- Protein purification columns are animal-free.
- Bulk proteins are filtered using animal-free filters.
- Purified proteins are stored in animal-free containers in a dedicated cold storage room.
- Low Endotoxin Level.
- No impairment of biological activity.
- High quality product obtained under stringent conditions.
- For ex vivo research or bioproduction, additional documentation can be provided.
FAQs
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