Characterization of radioactive human fibroblast-derived beta interferon synthesized in vivo

Radioactive human fibroblast-derived beta interferon has been synthesized in vivo after induction of human diploid fibroblast cells with poly I:C. The radioactive protein is not synthesized and secreted by uninduced cells. It reacts with antibody made against homogeneous human beta interferon and has the same N-terminal amino acid sequence as human beta interferon.