in transient gene expression assays we observed an increase in expression of the bacterial chloramphenicol acetyl-transferase ( cat ) gene , under the transcriptional control of the hiv-1 ltr ( pltr-cat ) , when this plasmid was cotransfected into vero or mrc-5 cells with a plasmid containing either the hcmv immediate early 1 and 2 ( e1 , ie2 ) genes ( prl43a ) or just the ie2 gene ( pmp18 ) .
C0017262
gene expression
C0040649
transcriptional