Detection of human cytomegalovirus-induced DNA-binding proteins on Western blots

DNA-binding proteins have been isolated from human embryonic fibroblast cells infected with human cytomegalovirus strain AD169 by native and denatured DNA-cellulose affinity chromatography and Polymin P precipitation. The DNA-binding proteins separated by polyacrylamide gel electrophoresis and electrophoretically transferred to a nitrocellulose sheet were identified by a modified ELISA reaction. Six DNA-binding proteins were found in infected cells, their molecular weights range from 52K to 18K.