Recombinant Protein

FGFR3

Human

Unmodified

64.8 kDa

Mammalian Cells

Mammal

Greater than 95% by SDS-PAGE

Tyrosine-protein kinase that acts as cell-surface receptor for fibroblast growth factors and plays an essential role in the regulation of cell proliferation, differentiation and apoptosis. Plays an essential role in the regulation of chondrocyte differentiation, proliferation and apoptosis, and is required for normal skeleton development. Regulates both osteogenesis and postnatal bone mineralization by osteoblasts. Promotes apoptosis in chondrocytes, but can also promote cancer cell proliferation. Required for normal development of the inner ear. Phosphorylates PLCG1, CBL and FRS2. Ligand binding leads to the activation of several signaling cascades. Activation of PLCG1 leads to the production of the cellular signaling molecules diacylglycerol and inositol 1,4,5-trisphosphate. Phosphorylation of FRS2 triggers recruitment of GRB2, GAB1, PIK3R1 and SOS1, and mediates activation of RAS, MAPK1/ERK2, MAPK3/ERK1 and the MAP kinase signaling pathway, as well as of the AKT1 signaling pathway. Plays a role in the regulation of vitamin D metabolism. Mutations that lead to constitutive kinase activation or impair normal FGFR3 maturation, internalization and degradation lead to aberrant signaling. Over-expressed or constitutively activated FGFR3 promotes activation of PTPN11/SHP2, STAT1, STAT5A and STAT5B. Secreted isoform 3 retains its capacity to bind FGF1 and FGF2 and hence may interfere with FGF signaling.

The ED50 as determined by its ability to inhibit FGF acidic-dependent proliferation of BALB/c 3T3 cells is less than 100 ng/ml.

Less than 1.0 EU/µg protein (determined by LAL method).

Lyophilized from 0.2 µm filtered PBS, pH 7.4

Store at -80°C for up to 1 year. Avoid freeze-thaw cycles.

For research use only. Intended for use by laboratory professionals.

This protein carries the LSBio 100% Guarantee.

Uniprot: P22607 NCBI: NM_000142 NP_000133.1