we used the untranslated leader from the coat protein mrna of alfalfa mosaic virus ( amv rna 4 ) , a well-translated , highly competitive message , to replace the leader sequence of barley alpha-amylase ( b alpha a ) and human interleukin 1 beta ( il-1 beta ) cdnas .
C0086418
human
C0021753
interleukin 1 beta