simian virus 40 capsid proteins vp-1 , vp-2 , and vp-3 have been synthesized in wheat germ and reticulocyte cell-free systems in response to either poly ( a ) -containing mrna from the cytoplasm of infected cells or viral rna purified by hybridization to simian virus 40 dna linked to sepharose .
C0010834
cytoplasm
C0007634
cells