CFS-23

The FGF family plays a central role during prenatal development and postnatal growth, and the regeneration of a variety of tissues, by promoting cellular proliferation and differentiation. FGF-23, FGF-21 and FGF-19 constitute an atypical FGF subfamily whose ligands act as circulating hormones and require the participation of a Klotho protein as a co-receptor for their signaling. FGF-23 is a bone-derived hormone that acts in the kidney to regulate phosphate homeostasis and vitamin D metabolism. The signaling receptor for FGF-23, a Klotho-FGFR1 (IIIc) complex, is an essential regulator of the renal sodium phosphate co-transporter and key vitamin D-metabolizing enzymes CYP27B1 and CYP24A1. Recombinant murine FGF-23 is a 25.5 kDa globular protein containing 228 amino acid residues.

Fibroblast Growth Factor 23

64654

Q9EPC2

NP_072148.1

NM_022657.4

6 F3; 6

Mouse

Mouse

MYPDTSPLLG SNWGSLTHLY TATARTSYHL QIHRDGHVDG TPHQTIYSAL MITSEDAGSV VITGAMTRRF LCMDLHGNIF GSLHFSPENC KFRQWTLENG YDVYLSQKHH YLVSLGRAKR IFQPGTNPPP FSQFLARRNE VPLLHFYTVR PRRHTRSAED PPERDPLNVL KPRPRATPVP VSCSRELPSA EEGGPAASDP LGVLRRGRGD ARGGAGGADR CRPFPRFV

< 0.1 ng/µg of protein (< 1EU/µg)

> 95% by SDS-PAGE & HPLC analyses

Determined by its ability to stimulate the proliferation of murine NIH-3T3 cells. The expected ED50 for this effect is 0.3-0.5 μg/ml, in the presence of murine Klotho and heparin.

228

Lyophilized

25.5 kDa

E. coli