although drb has been reported as a specific inhibitor of rna polymerase ii-directed transcription , and although the low-salt conditions were not propitious for the activity of this enzyme , rna polymerase ii was detected on puff iii-a3b and on the other heat-shock puffs by immunofluorescence with anti-rna polymerase ii antibodies .
C0040649
transcription
C0035679
rna polymerase ii