R-Spondin 1(21-146) Protein, Human

Measured by its ability to induce Topflash reporter activity in HEK293T human embryonic kidney cells.
The EC50 for this effect is less than 20ng/mL in the presence of 5ng/mL Recombinant Human Wnt‑3a.

2μg (R: reducing conditions, N: non-reducing conditions).

RNF43 mFc Chimera, Mouse (Cat. No. UA010216) captured on Protein A Biosenor, can bind RSPO1(21-146) His Tag, Human (Cat. No. UA040022) with an affinity constant of 6.73nM as determined in SPR assay.