Recombinant Human FGF acidic (aa 2-155) Protein, CF

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1 μg/lane of Recombinant Human FGF-acidic (aa 2-155) was resolved with SDS-PAGE under reducing (R) conditions and visualized by silver staining, showing a single band at 19 kDa.
Recombinant Human FGF acidic (aa 2-155) (Catalog # 231-BC/CF) stimulates cell proliferation of the NR6R‑3T3 mouse fibroblast cell line. The ED50 for this effect is 0.015-0.15 ng/mL in the presence of 10 μg/mL of ...read more

Product Details

Summary
Reactivity HuSpecies Glossary
Applications Bioactivity
Format
Carrier-Free

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Recombinant Human FGF acidic (aa 2-155) Protein, CF Summary

Details of Functionality
Measured in a cell proliferation assay using NR6R‑3T3 mouse fibroblast cells. Rizzino, A. et al. (1988) Cancer Res. 48:4266; Thomas, K. et al. (1987) Methods Enzymol. 147:120. The ED50 for this effect is 0.015-0.15 ng/mL in the presence of 10 µg/mL of heparin.
Source
E. coli-derived human FGF acidic protein
Ala2-Asp155
Accession #
N-terminal Sequence
Ala2
Protein/Peptide Type
Recombinant Proteins
Gene
FGF1
Purity
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Note
<0.10 EU per 1 μg of the protein by the LAL method.

Applications/Dilutions

Theoretical MW
17 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Publications
Read Publications using
231-BC/CF in the following applications:

Packaging, Storage & Formulations

Storage
  • 12 months from date of receipt, ≤ -20 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, ≤ -20 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in MOPS, (NH4)2SO4, DTT and EDTA.
Purity
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Reconstitution Instructions
Reconstitute at 100 μg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Recombinant Human FGF acidic (aa 2-155) Protein, CF

  • AFGF
  • alpha
  • alpha-ECGF
  • beta-ECGF
  • ECGF
  • ECGFB
  • ECGF-betaAcidic fibroblast growth factor
  • endothelial cell growth factor, beta
  • FGF acidic
  • FGF1
  • FGF-1
  • FGFABeta-endothelial cell growth factor
  • FGF-alpha
  • fibroblast growth factor 1 (acidic)
  • GLIO703
  • HBGF1
  • HBGF-1
  • heparin-binding growth factor 1

Background

FGF acidic, also known as FGF-1, ECGF, and HBGF-1, is a 17 kDa nonglycosylated member of the FGF family of mitogenic peptides. FGF acidic, which is produced by multiple cell types, stimulates the proliferation of all cells of mesodermal origin and many cells of neuroectodermal, ectodermal, and endodermal origin. It plays a number of roles in development, regeneration, and angiogenesis (1-3). Human FGF acidic shares 54% amino acid (aa) sequence identity with FGF basic and 17%-33% with other human FGFs. It shares 92%, 96%, 96%, and 96% aa sequence identity with bovine, mouse, porcine, and rat FGF acidic, respectively, and exhibits considerable species crossreactivity. Alternate splicing generates a truncated isoform of human FGF acidic that consists of the N-terminal 40% of the molecule and functions as a receptor antagonist (4). During its nonclassical secretion, FGF acidic associates with S100A13, copper ions, and the C2A domain of synaptotagmin 1 (5). It is released extracellularly as a disulfide-linked homodimer and is stored in complex with extracellular heparan sulfate (6). The ability of heparan sulfate to bind FGF acidic is determined by its pattern of sulfation, and alterations in this pattern during embryognesis thereby regulate FGF acidic bioactivity (7). The association of FGF acidic with heparan sulfate is a prerequisite for its subsequent interaction with FGF receptors (8, 9). Ligation triggers receptor dimerization, transphosphorylation, and internalization of receptor/FGF complexes (10). Internalized FGF acidic can translocate to the cytosol with the assistance of Hsp90 and then migrate to the nucleus by means of its two nuclear localization signals (11-13). The phosphorylation of FGF acidic by nuclear PKC delta triggers its active export to the cytosol where it is dephosphorylated and degraded (14, 15). Intracellular FGF acidic functions as a survival factor by inhibiting p53 activity and proapoptotic signaling (16).

  1. Jaye, M. et al. (1986) Science 233:541.
  2. Galzie, Z. et al. (1997) Biochem. Cell Biol. 75:669.
  3. Presta, M. et al. (2005) Cytokine Growth Factor Rev. 16:159.
  4. Yu, Y.L. et al. (1992) J. Exp. Med. 175:1073.
  5. Rajalingam, D. et al. (2007) Biochemistry 46:9225.
  6. Guerrini, M. et al. (2007) Curr. Pharm. Des. 13:2045.
  7. Allen, B.L. and A.C. Rapraeger (2003) J. Cell Biol. 163:637.
  8. Robinson, C.J. et al. (2005) J. Biol. Chem. 280:42274.
  9. Mohammadi, M. et al. (2005) Cytokine Growth Factor Rev. 16:107.
  10. Wiedlocha, A. and V. Sorensen (2004) Curr. Top. Microbiol. Immunol. 286:45.
  11. Wesche, J. et al. (2006) J. Biol. Chem. 281:11405.
  12. Imamura, T. et al. (1990) Science 249:1567.
  13. Wesche, J. et al. (2005) Biochemistry 44:6071.
  14. Wiedlocha, A. et al. (2005) Mol. Biol. Cell 16:794.
  15. Nilsen, T. et al. (2007) J. Biol. Chem. 282:26245.
  16. Bouleau, S. et al. (2005) Oncogene 24:7839.

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Bioinformatics

Gene Symbol FGF1
Uniprot