Deletion extends from the 5' control region to the first Cys residue.
Polr2IV is a suppressor of lethal phenotype of Ras85DV12.sev, sevS11.Tag:MYC
Polr2IV, Ras85DV12.sev, sevS11.Tag:MYC has viable phenotype
The lethality caused by sevS11.T:Hsap\MYC in combination with Ras85DV12.sev is suppressed by RpII15V.
Polr2IV is rescued by Polr2I+t5.3
The lethality of homozygotes is rescued by RpII15tKa.