rna polymerase i was insensitive to high levels of alpha-amanitin , rna polymerase ii was sensitive to low concentrations of alpha-amanitin ( 50 % inhibition at 0.006 mug/ml ) and rna polymerases iiia and iiib were sensitive to high concentrations of alpha-amanitin ( 50 % inhibition at 18 mug/ml ) .
C0035678
rna polymerase i
C0035681
rna polymerases