Mediator as a general transcription factor.

Abstract excerpt

Others have shown that yeast strains bearing a ts mutation in the Srb4 subunit of Mediator cease transcription of all mRNA at the restrictive temperature, in a manner virtually indistinguishable from a strain bearing a ts mutation in the largest subunit of RNA polymerase II. We find that srb4ts Mediator is defective for the stimulation of basal RNA polymerase II transcription at the restrictive temperature in...

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