Cultrex HA-R-Spondin1-Fc 293T Cells

Roof plate-specific Spondin-1, (R-Spondin 1, RSPO1, or CRISTIN3), is a 27 kDa secreted activator protein that belongs to the R-Spondin family. R-Spondin positively regulates Wnt/beta-catenin signaling by acting as a ligand for Lgr4-6 receptors and as an inhibitor for ZNRF3. R-Spondin 1 induces proliferation of intestinal crypt epithelial cells, increases intestinal epithelial healing, and supports intestinal epithelial stem cell renewal. Cultrex HA-R-Spondin 1-Fc 293T Cells are stably transfected to express murine R-Spondin 1 that contains an N-terminal HA epitope tag and is fused to a C-terminal murine IgG2a Fc fragment.

Cultrex HA-R-Spondin 1-Fc 293T cell line can be used to produce either purified R-Spondin 1 or R-Spondin 1-conditioned media. The murine R-Spondin 1 protein produced from this cell line has been used extensively in organoid culture to maintain Lgr5+ stem cells. The Fc and HA tags can be used for protein purification or characterization.