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Recombinant Human FGF-4 (E. coli)

Cat. No. M21554
Recombinant Human FGF-4 (E. coli) Structure
Synonym:

HBGF-4; HST; HST-1; HSTF1; K-FGF; KFGF

Size Price Availability Quantity
5ug USD 130  USD130 In stock
25ug USD 205  USD205 In stock
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Quality Control & Documentation
  • Purity: >95%, Endotoxin < 0.2 EU/μg
  • COA
  • MSDS
Biological Activity

Species: Human
Expression system: E. coli
Purity: SDS-PAGE analysis > 95%, HPLC analysis > 95%
Endotoxin: Protein content < 0.2 EU/μg was determined by gel coagulation
Apparent molecular weight: ~19.4 kDa, reduced by SDS-PAGE
Storage and stability: Upon receipt, the product remains stable at temperatures below -70°C for up to 6 months. After reconstruction, the product should be stable at 4°C for up to 1 week or at -20°C for up to 3 months. For long-term storage, the addition of a carrier protein (e.g. 0.1% BSA) is recommended. Avoid repeated freeze-thaw cycles.


Bioactivity: ED50 < 0.5 ng/ml, measured in cell proliferation assay using 3T3 cells, corresponds to > 2.0 × 10 6 units /mg of specific activity. Fibroblast growth factor-4 (FGF-4), also known as K-FGF, is a heparin-bound growth factor in the FGF family. It is identified by its carcinogenic transforming activity. FGF-4 and FGF-3 are located on chromosome 11. FGF-4 and its receptors (FGF-R1C, 2c, 3c and 4) play an important role in the regulation of embryonic development, cell proliferation and cell differentiation. FGF-4 is required for normal limb and heart valve development during embryogenesis.


Chemical Information
Solubility (25°C) It is recommended that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute the lyophilized powder in ddH₂O up to 100 μg/ml.
Storage Powder          -20°C   3 years ;  4°C   2 years
In solvent       -80°C   6 months ;  -20°C   1 month
Conversion of different model animals based on BSA (PMID: 27057123)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.

References

[1] Kotaro Hirai, et al. J Gene Med. Antisense oligodeoxynucleotide against HST-1/FGF-4 suppresses tumorigenicity of an orthotopic model for human germ cell tumor in nude mice

[2] Victoria Franke Stenport, et al. Clin Oral Implants Res. FGF-4 and titanium implants: a pilot study in rabbit bone

[3] No authors listed. BioDrugs. FGF-4 gene therapy GENERX--Collateral Therapeutics

[4] K A Lamb, et al. Mol Reprod Dev. NF-Y binds to the CCAAT box motif of the FGF-4 gene and promotes FGF-4 expression in embryonal carcinoma cells

[5] T Alanko, et al. Exp Cell Res. FGF-2 inhibits apoptosis in human teratocarcinoma cells during differentiation on collagen substratum

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Keywords: Recombinant Human FGF-4 (E. coli), HBGF-4; HST; HST-1; HSTF1; K-FGF; KFGF supplier, Recombinant Proteins, inhibitors, activators


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