Regulated upon activation, normal T cell expressed and secreted (RANTES), also called CCL5, is a chemokine produced by T cells three to five days after T cell activation. RANTES signals through G protein-coupled receptors CCR5, CCR3, CCR1, and through the human CMV-encoded viral receptor US28. RANTES functions to recruit immune cells to inflammatory sites.
Bioactivity Assay:THP-1 chemotaxis; ED50 =250 ng/mL; Bioactivity =4.0 x 10^3 units/mg