Recombinant Human FGF basic/FGF2, 146 aa Animal-Free Protein

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Catalog # Availability Size / Price Qty
AFL233
AFL233-025
Equivalent Bioactivity of GMP, Animal-Free, and RUO grades of Recombinant Human FGF basic
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Citations (2)
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Recombinant Human FGF basic/FGF2, 146 aa 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 NR6R‑3T3 mouse fibroblast cells. Raines, E.W. et al. (1985) Methods Enzymol. 109:749. The ED50 for this effect is 0.1-0.6 ng/mL.
The specific activity of Recombinant Human FGF basic/FGF2 GMP is >8.0 x 105 IU/mg, which is calibrated against the human FGF basic/FGF2 WHO International Standard (NIBSC code: 90/712).
Source
E. coli-derived human FGF basic/FGF2/bFGF protein
Pro143-Ser288, with an N-terminal Ala
Produced using non-animal reagents in an animal-free laboratory.
Accession #
N-terminal Sequence
Analysis
Ala
Predicted Molecular Mass
16.5 kDa
SDS-PAGE
17 kDa under reducing conditions

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AFL233

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.

AFL233

Formulation Lyophilized from a 0.2 μm filtered solution in Tris-HCl and NaCl.
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.

Scientific Data

Bioactivity View Larger

Equivalent bioactivity of GMP (233-GMP), Animal-Free (Catalog # AFL233) and RUO (233-FB/CF) grades of Recombinant Human FGF basic as measured in a cell proliferation assay using NR6R‑3T3 mouse fibroblast cells (orange, green, red, respectively).

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: FGF basic/FGF2/bFGF

FGF basic is a member of the FGF family of at least 23 related mitogenic proteins which show 35-60% amino acid conservation. FGF acidic and basic, unlike the other members of the family, lack signal peptides and are apparently secreted by mechanisms other than the classical protein secretion pathway. FGF basic has been isolated from a number of sources, including neural tissue, pituitary, adrenal cortex, corpus luteum, and placenta. This factor contains four cysteine residues, but reduced FGF basic retains full biological activity, indicating that disulfide bonds are not required for this activity. A variety of forms of FGF basic are produced as a result of N-terminal extensions. These extensions affect localization of FGF basic in cellular compartments but do not affect biological activity. Binding of FGF to heparin or cell surface heparan sulfate proteoglycans is necessary for binding of FGF to high affinity FGF receptors. FGF acidic and basic appear to bind to the same high affinity receptors and show a similar range of biological activities. FGF basic stimulates the proliferation of all cells of mesodermal origin and many cells of neuroectodermal, ectodermal, and endodermal origin. FGF basic induces neuron differentiation, survival, and regeneration. FGF basic also modulates embryonic development and differentiation. These observed in vitro functions of FGF basic suggest FGF basic may play a role in vivo in the modulation of such normal processes as angiogenesis, wound healing and tissue repair, embryonic development and differentiation, and neuronal function and neural degeneration. Additionally, FGF basic may participate in the production of a variety of pathological conditions resulting from excessive cell proliferation and excessive angiogenesis.

References
  1. Coulier, F. et al. (1997) J. Mol. Evol. 44:43.
  2. Chen, C.H. et al. (2004) Curr. Vasc. Pharmacol. 2:33.
  3. Mohammadi, M. et al. (2005) Curr. Opin. Struct. Biol. 15:506.
  4. Fernig, D. et al. (1994) Prog. Growth Factor Res. 5:353.
Long Name
Fibroblast Growth Factor basic
Entrez Gene IDs
2247 (Human); 14173 (Mouse); 281161 (Bovine); 403857 (Canine); 100033955 (Equine)
Alternate Names
basic fibroblast growth factor bFGF; Basic fibroblast growth factor; bFGF; FGF basic; FGF2; FGF-2; FGFBprostatropin; fibroblast growth factor 2 (basic); HBGF-2; heparin-binding growth factor 2; Prostatropin

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

    Citations for Recombinant Human FGF basic/FGF2, 146 aa 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.

    2 Citations: Showing 1 - 2
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    1. Circulating Fibroblast Growth Factor-2 precipitates HIV-nephropathy in mice
      Authors: JR Das, M Jerebtsova, P Tang, J Li, J Yu, PE Ray
      Disease Models & Mechanisms, 2021;0(0):.
      Species: Mouse
      Sample Types: In Vivo
      Applications: In Vivo
    2. Circulating fibroblast growth factor-2 precipitates HIV nephropathy in mice
      Authors: JR Das, M Jerebtsova, P Tang, J Li, J Yu, PE Ray
      Disease Models & Mechanisms, 2021;14(7):.
      Species: Mouse
      Sample Types: In Vivo
      Applications: In Vivo

    FAQs

    1. What receptors does FGF basic bind?

    2. Does human FGF basic show activity on mouse cells?
      • Yes, it does. The bioassay uses NR-6 mouse fibroblast cells.  There is 95% homology between the human and mouse protein and 98% homology between the human and mouse receptor.

    View all Proteins and Enzyme FAQs

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