免疫原:Recombinant His-tagged human GFR alpha-1 protein produced using CHO-based cell line. For production of hGFR alpha-1, glycosylphosphatidyl-inositol GPI-anchor was removed and protein was secreted to the cell culture supernatant. Protein was purified by Ni-affinity chromatography following gel-filtration from cell culture supernatant.