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Recombinant Human FGFR3 Protein (Fc Tag)

Cat No.: BL-0007NP
Description Related products
tag Fc
host species Human
accession P22607
synonym FGF R3 Fibroblast growth factor receptor 3; FGFR-3; CD333; FGFR3; JTK4; IIIc
background Fibroblast growth factors (FGFs) are involved in a multitude of physiological and pathological cellular processes. The biological activities of the FGFs are mediated by a family of type I transmembrane tyrosine kinases which undergo dimerization and autophosphorylation after ligand binding. Four distinct genes encoding closely related FGF receptors, FGF R1-4, are known. All four genes for FGF Rs encode proteins with an N-terminal signal peptide, three immunoglobulin (Ig)-like domains, an acid-box region containing a run of acidic residues between the IgI and IgII domains, a transmembrane domain and the split tyrosine-kinase domain. Multiple forms of FGF R1-3 are generated by alternative splicing of the mRNAs. A frequent splicing event involving FGF R1 and 2 results in receptors containing all three Ig domains, referred to as the α isoform, or only IgII and IgIII, referred to as the β isoform. Only the α isoform has been identified for FGF R3 and FGF R4. Additional splicing events for FGF R1-3, involving the C-terminal half of the IgIII domain encoded by two mutually exclusive alternative exons, generate FGF receptors with alternative IgIII domains (IIIb and IIIc). The complex patterns of expression of these receptors as well as the specificity of their interactions with the various FGF ligand family members are under investigation.
description Recombinant Human Fibroblast Growth Factor Receptor 3 is expressed by our Mammalian expression system and the target gene encoding Glu23-Gly375 is expressed with a Fc tag at the C-terminus.
source Human Cells
AA sequence Glu23-Gly375
purity >95% as determined by reducing SDS-PAGE.
endotoxin <0.1 ng/µg (1 EU/µg) as determined by LAL test.
bioactivity Measured by its ability to inhibit FGF acidic-dependent proliferation of BALB/c 3T3 cells. The ED50 for this effect is less than 100 ng/ml.
formulation Recombinant Human FGF R3 Protein was lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4.
reconstitution Dissolve the lyophilized protein in distilled water.
usage For Research Use Only
storage Human FGF R3 protein should be stored at < -20°C, though stable at room temperature for 3 weeks.Reconstituted protein solution can be stored at 4-7°C for 2-7 days.Aliquots of reconstituted samples are stable at < -20°C for 3 months.
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