Recombinant Human FGF-19 Protein
Recommended Products
There are no recommended products for Recombinant Human FGF-19 Protein
Overview
Fibroblast growth factor 19 (FGF-19), a member of the FGF family, and plays a role in regulating metabolic processes. FGF-19 is expressed by embryonic stem cells and can be used in stem cell and organoid cultures to promote liver and osteogenic differentiation.
FGF-19 is a high purity protein with a molecular weight of 21.8 kDa. This protein is animal origin-free, carrier-free and tag-free to ensure its purity with exceptional lot-to-lot consistency. Qkine FGF-19 is suitable for the culture of reproducible and high-quality stem cells, primary cells and organoids.
Download the Product Data Sheet for species reactivity, reconstitution instructions, bioactivity, purity, and additional product information.
Contact us for Quality and Safety documentation or for information on cell therapy grade growth factors and cytokines.
Product Features
- High purity human FGF-19 (UniProt: O95750)
- 21.8 kDa (monomer)
- >98%, by SDS-PAGE quantitative densitometry
- Animal origin-free (AOF) and carrier protein-free
- Expressed in E. coli
- Manufactured in Qkine’s Cambridge, UK laboratories
- Lyophilized from PBS, mannitol
- Resuspend in sterile-filtered water at >50 µg/ml, add carrier protein if desired, prepare single use aliquots and store frozen at -20 °C (short-term) or -80 °C (long-term).
Featured Applications:
-
- Metabolic disease research
- Liver cell regeneration
- Cancer research including gastrointestinal cancers
- Directed osteogenic differentiation of mesenchymal stem cells
RoosterBio is a distributor of Qkine growth factors and cytokines within the Unites States, for regional specific orders please contact us for more information.
Login to search Certificates of Analysis and Quality Control Briefs.
How do I store my proteins?
- Lyophilized store at -20°C or -80°C for up to 2 years
- Reconstituted store at -20 °C or -80 °C
- We recommend that single use aliquots are prepared to avoid freeze-thaw cycles
How do I reconstitute lyophilized protein?
- Check the resuspension solution recommendation on the product datasheet.*
- Centrifuge briefly before reconstituting to ensure all powder is at the bottom of the vial.
- Add sufficient reconstitution solution to give a protein concentration of 0.05–1.0 mg/ml.
- Allow the reconstituted sample to stand at room temperature for >1 minute before gently agitating. Do not vortex and avoid foaming.
- Prepare single-use aliquots whenever possible to avoid freeze-thaw cycles, which can damage the proteins and reduce bioactivity. Store aliquots at -80°C (or -20°C).**
NOTES
*Physiological buffers may cause precipitation of proteins during reconstitution. This is especially important for TGF beta family and other related growth factors, so it is very important that these are reconstituted in Solution A (10 mM HCl, 1:1000 dilution of concentrated HCl).
**All our proteins are supplied carrier protein-free. If compatible with your work and you are storing at lower concentrations (<50 μg/ml), adding carrier protein is highly advised (usually 1% w/v high purity BSA or equivalent – ensure all buffers are sterile-filtered).