Recombinat Protein,Human R-Spondin 3 RSPO3 (22-146) Protein, His Tag,Human R-Spondin 3 (22-146), His Tag (RS6-H5222) is expressed fr om human 293 cells (HEK293). It contains AA Gln 22 - Val 146 (Accession AAH22367).This protein carries a polyhistidin 1 * 1 mg