Measured by its binding ability in a functional ELISA.1. Immobilized human FGF18-His at 10 μg/ml (100 μl/well) can bind cynoFGFR4-Fc with a linear range of 0.25-2.0 μg/ml.2. Immobilized human FGF basic at 10 μg/ml (100 μl/well) can bind cynoFGFR4-Fc with a linear range of 0.03-0.25 μg/ml.

FGFR4 Protein, Rhesus, Recombinant (hFc) is expressed in HEK293 mammalian cells with hFc tag. The predicted molecular weight is 65.6 kDa and the accession number is XP_001087243.1.

Rhesus

HEK293 Cells

fibroblast growth factor receptor 4

The rhesus FGFR4 (Met1-Asp369) (XP_001087243.1) was expressed with the Fc region of Mouse IgG1 at the C-terminus.

> 95 % as determined by SDS-PAGE

A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.

It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.

Fibroblast growth factor receptor 4 (FGFR4) also known as CD334 antigen or tyrosine kinase related to fibroblast growth factor receptor, is a member of the fibroblast growth factor receptor family, where amino acid sequence is highly conserved between members and throughout evolution. FGFR family members differ from one another in their ligand affinities and tissue distribution. A full-length representative protein would consist of an extracellular region, composed of three immunoglobulin-like domains, a single hydrophobic membrane-spanning segment and a cytoplasmic tyrosine kinase domain. The extracellular portion of FGFR4/CD334 interacts with fibroblast growth factors, setting in motion a cascade of downstream signals, ultimately influencing mitogenesis and differentiation. FGFR4/CD334 preferentially binds acidic fibroblast growth factor and, although its specific function is unknown, it is overexpressed in gynecological tumor samples, suggesting a role in breast and ovarian tumorigenesis. FGFR4/CD334 signaling is down-regulated by receptor internalization and degradation; MMP14 promotes internalization and degradation of FGFR4/CD334. Mutations in FGFR4/CD334 lead to constitutive kinase activation or impair normal FGFR4 inactivation lead to aberrant signaling.Cancer ImmunotherapyImmune CheckpointImmunotherapyTargeted Therapy