Recombinant Human FGF basic/FGF2/bFGF (146 aa) Protein

Catalog # 233-FB | R&D Systems, Inc. a Bio-Techne Brand
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Carrier Free
233-FB-001MG/CF
233-FB-010/CF
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233-FB-025/CF
233-FB-500/CF
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233-FB-010
233-FB-01M
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233-FB-025
233-FB-500
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Key Product Details

Accession #

P09038

Source

E. coli

Conjugate

Unconjugated

Applications

Bioactivity

Product Specifications

Source

E. coli-derived human FGF basic/FGF2/bFGF protein
Pro143-Ser288, with an N-terminal Ala

Purity

>97%, by SDS-PAGE under reducing conditions and visualized by silver stain.

Endotoxin Level

<0.10 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Ala-Pro143

Predicted Molecular Mass

16.5 kDa

SDS-PAGE

17 kDa, reducing conditions

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.

Formulation, Preparation and Storage

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.

Carrier: 233-FB
Formulation Lyophilized from a 0.2 μm filtered solution in Tris-HCl and NaCl with BSA as a carrier protein.
Reconstitution Reconstitute at 100-250 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin.
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.
Carrier Free: 233-FB/CF
Formulation Lyophilized from a 0.2 μm filtered solution in Tris-HCl and NaCl.
Reconstitution Reconstitute at 100-250 μg/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.

Background: FGF basic/FGF2/bFGF

FGF basic (also known as FGF-2 and HBGF-2) is a member of the FGF superfamily of mitogenic proteins which show 35-60% amino acid conservation. FGF acidic and basic are unique from other members of the family in that they lack classical secretory signal peptides. However, they are both readily secreted from cells by an alternative secretory pathway involving direct translocation and aided by several chaperones. FGF acidic (FGF-1) and FGF basic (FGF-2) were the first two identified FGFs, and the designations acidic and basic refer to their relative isoelectric points. The full length human FGF basic protein is 288 amino acids, but there are multiple start sites which produce various shorter forms. Further adding to the complexity, 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. FGF basic has been isolated from a number of sources, including neural tissue, adrenal cortex, pituitary gland, corpus luteum, and placenta. Binding of FGF to heparin or cell surface heparan sulfate proteoglycans is required for FGF binding with high affinity to FGF receptors. FGF basic stimulates proliferation of all cells of mesodermal origin as well as many cells of neuroectodermal, ectodermal, and endodermal origin. FGF basic also induces neuronal differentiation, survival, and regeneration, and modulates embryonic development and differentiation. These observed in vitro functions 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 also participate in the development of several pathological conditions resulting from excessive cell proliferation and/or 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

Alternate Names

bFGF, FGF-2, FGF2, HBGF-2, Prostatropin

Entrez Gene IDs

2247 (Human); 14173 (Mouse); 281161 (Bovine); 403857 (Canine); 100033955 (Equine)

Gene Symbol

FGF2

UniProt

P09038

Product Documents for Recombinant Human FGF basic/FGF2/bFGF (146 aa) Protein

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

Download SDS 233-FB (with carrier)
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Product Specific Notices for Recombinant Human FGF basic/FGF2/bFGF (146 aa) Protein

For research use only

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