Recombinant Human M-CSF, Animal-Free Protein

GMP Version Available: 216-GMP
GMP
Also available, GMP M-CSF Protein, Catalog # 216-GMP! Animal-free and manufactured under GMP guidelines for therapeutic manufacturing applications
Catalog # Availability Size / Price Qty
AFL216
AFL216-005
AFL216-025
AFL216-500
Product Details
Citations (1)
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Recombinant Human M-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

Purity
>97%, 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 in a cell proliferation assay using M‑NFS‑60 mouse myelogenous leukemia lymphoblast cells. Nakoinz, I. et al. (1990) J. Immunol. 145:860. The ED50 for this effect is 0.5‑1.5 ng/mL.
The specific activity of Recombinant Human M-CSF is approximately 1.68 x 105 IU/μg, which is calibrated against recombinant human
M-CSF WHO International Standard (NIBSC code: 89/512).
Source
E. coli-derived human M-CSF protein
Glu33-Ser190, with an N-terminal Met
Produced using non-animal reagents in an animal-free laboratory.
Accession #
N-terminal Sequence
Analysis
Met
Structure / Form
Disulfide-linked homodimer
Predicted Molecular Mass
18.5 kDa (monomer)
SDS-PAGE
37 kDa, non-reducing conditions

Product Datasheets

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.

AFL216

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.
  • 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.

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

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: M-CSF

M-CSF, also known as CSF-1, is a four-alpha -helical-bundle cytokine that is the primary regulator of macrophage survival, proliferation and differentiation (1 - 3). M-CSF is also essential for the survival and proliferation of osteoclast progenitors (1, 4). M-CSF also primes and enhances macrophage killing of tumor cells and microorganisms, regulates the release of cytokines and other inflammatory modulators from macrophages, and stimulates pinocytosis (2, 3). M-CSF increases during pregnancy to support implantation and growth of the decidua and placenta (5). Sources of M-CSF include fibroblasts, activated macrophages, endometrial secretory epithelium, bone marrow stromal cells and activated endothelial cells (1 - 5). The M-CSF receptor (c-fms) transduces its pleotropic effects and mediates its endocytosis. M-CSF mRNAs of various sizes occur (3 - 9). Full length human M-CSF transcripts encode a 522 amino acid (aa) type I transmembrane (TM) protein with a 464 aa extracellular region, a 21 aa TM domain, and a 37 aa cytoplasmic tail that forms a 140 kDa covalent dimer. Differential processing produces two proteolytically cleaved, secreted dimers. One is an N- and O- glycosylated 86 kDa dimer, while the other is modified by both glycosylation and chondroitin-sulfate proteoglycan (PG) to generate a 200 kDa subunit. Although PG-modified M-CSF can circulate, it may be immobilized by attachment to type V collagen (8). Shorter transcripts encode M-CSF that lacks cleavage and PG sites and produces an N-glycosylated 68 kDa TM dimer and a slowly produced 44 kDa secreted dimer (7). Although forms may vary in activity and half-life, all contain the N-terminal 150 aa portion that is necessary and sufficient for interaction with the M-CSF receptor (10, 11). The first 223 aa of mature human M-CSF shares 88%, 86%, 81% and 74% aa identity with corresponding regions of dog, cow, mouse and rat M-CSF, respectively (12, 13). Human M-CSF is active in the mouse, but mouse M-CSF is reported to be species-specific.

References
  1. Pixley, F.J. and E.R. Stanley (2004) Trends Cell Biol. 14:628.
  2. Chitu, V. and E.R. Stanley (2006) Curr. Opin. Immunol. 18:39.
  3. Fixe, P. and V. Praloran (1997) Eur. Cytokine Netw. 8:125.
  4. Ryan, G.R. et al. (2001) Blood 98:74.
  5. Makrigiannakis, A. et al. (2006) Trends Endocrinol. Metab. 17:178.
  6. Nandi, S. et al. (2006) Blood 107:786.
  7. Rettenmier, C.W. and M.F. Roussel (1988) Mol. Cell Biol. 8:5026.
  8. Suzu, S. et al. (1992) J. Biol. Chem. 267:16812.
  9. Manos, M.M. (1988) Mol. Cell. Biol. 8:5035.
  10. Koths, K. (1997) Mol. Reprod. Dev. 46:31.
  11. Jang, M-H. et al. (2006) J. Immunol. 177:4055.
  12. Kawasaki, E.S. et al. (1985) Science 230: 291.
  13. Wong, G.G. et al. (1987) Science 235:1504.
Long Name
Macrophage Colony Stimulating Factor
Entrez Gene IDs
1435 (Human); 12977 (Mouse)
Alternate Names
colony stimulating factor 1 (macrophage); CSF1; CSF-1; Lanimostim; macrophage colony stimulating factor; macrophage colony-stimulating factor 1; MCSF; M-CSF; MCSFlanimostim; MGC31930

Manufacturing Specifications

Animal-Free Manufacturing Conditions
Our 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.

    Quality Assurance

    • 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.

    Please read our complete Animal-Free Statement

    Citation for Recombinant Human M-CSF, Animal-Free Protein

    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

    1. MITAP-compliant Characterisation of Human Regulatory Macrophages
      Authors: JA Hutchinson, N Ahrens, EK Geissler
      Transpl. Int., 2017;0(0):.
      Species: Human
      Sample Types: Whole Cells
      Applications: Bioassay

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