Construct: Nucleotide substitution: G3065A. This substitution is shared by in vivo-generated mild suppressors.
Polr2BM is a suppressor of lethal phenotype of Polr2A12
Polr2BM is a suppressor of lethal phenotype of Polr2AK1
Polr2BM is a suppressor of phenotype of Polr2AK1
Mild suppressor: restores viability to 1-49% of wild type flies.