R-Spondin-1 Recombinant Protein

Assay #1: R-Spondin-1 enhances BMP-2-mediated differentiation of MC3T3-E1 cells. The expected ED50 is 1.0-3.0 ug/ml. Assay #2: Measured by its ability to induce Topflash reporter activity in HEK293 TCF/LEF Luc reporter cells. The ED50 for this effect is typically 0.6-1.0 ug/ml in the presence of 50 ng/ml recombinant human BMP-2.

The recombinant protein is stable for at least 2 years from date of receipt at -20°C. Reconstituted protein is stable for at least 3 months when stored in working aliquots with a carrier protein at -20°C. As with any protein, exposing the recombinant protein to repeated freeze / thaw cycles is not recommended. When working with proteins care should be taken to keep recombinant protein at a cool and stable temperature.

SRGIKGKRQR RISAEGSQAC AKGCELCSEV NGCLKCSPKL FILLERNDIR QVGVCLPSCP PGYFDARNPD MNKCIKCKIE HCEACFSHNF CTKCKEGLYL HKGRCYPACP EGSSAANGTM ECSSPAQCEM SEWSPWGPCS KKQQLCGFRR GSEERTRRVL HAPVGDHAAC SDTKETRRCT VRRVPCPEGQ KRRKGGQGRR ENANRNLARK ESKEAGAGSR RRKGQQQQQQ QGTVGPLTSA GPA