Recombinant Human Flt3L Protein
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Overview
Fms-like tyrosine kinase 3 ligand (Flt-3 Ligand or Flt3L) is a cytokine that is involved in the regulation of hematopoiesis. It stimulates the survival, proliferation, and differentiation of various early myeloid and lymphoid progenitor cells. Flt3L is commonly used in the differentiation of hematopoietic stem cells into dendritic cells.
Human recombinant Flt3L has a molecular weight of 17.6 kDa. This protein is animal origin-free, carrier protein-free, tag-free, and non-glycosylated to ensure a homogenous population with exceptional lot-to-lot consistency. Flt3L is suitable for the culture of reproducible and high-quality myeloid progenitors and dendritic cells.
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 protein (UniProt: P49771)
- 17.6 kDa (monomer)
- >98%, by SDS-PAGE quantitative densitometry
- Expressed in E. coli
- Animal origin-free (AOF) and carrier protein-free
- Manufactured in Qkine’s Cambridge, UK laboratories
- Lyophilized from Tris
- 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:
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- Generation of iPSC-derived myeloid and lymphoid progenitors
- Differentiation of myeloid cells into dendritic cells
- Generation of iPSC-derived dendritic cells
- Maintenance of peripheral blood 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.
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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).