金山科研平台，产品价格货期咨询微信：jinshanbio Source:E. coli-derived, Ser94-Lys191 Accession #:Q4FJT2 N-terminal Sequence Analysis:Ser94 Purity:>97%, by SDS-PAGE under reducing conditions and visualized by silver stain. Predicted Molecular Mass:11.3 kDa Activity:Measured in a cell proliferation assay using Balb/3T3 mouse embryonic fibroblast cells. Marquardt, H. et al. (1984) Science 223:1079.The ED₅₀ for this effect is typically 5-20 ng/mL. Molecule Information: Amphiregulin Aliases: AREG Entrez Gene IDs: 374 (Human); 11839 (Mouse) Background: Amphiregulin (AR) Amphiregulin is a member of the EGF family of cytokines, which is comprised of at least ten proteins including EGF, TGF-alpha, HB-EGF, and the various heregulins. All of these cytokines are synthesized as transmembrane precursors and are characterized by the presence of one or several EGF structural units in their extracellular domain.