![Human FGF21 Protein (FGF-HM121)](http://kactusbio.com/cdn/shop/products/20210527183340_32ca7534-8de3-4fc3-8a7a-b0283f6971a8.png?v=1666382106&width=1080)
- Express System: HEK293
- Product Tag: N-His
- Purity: > 95% as determined by Bis-Tris PAGE;> 95% as determined by HPLC
- Activity: The affinity constant of 20nM as determined in SPR assay (Biacore T200). See testing image for detail.
- Amino Acid Range: His29-Ser209