The function of Spt3, a subunit of the SAGA complex, in PGK1 transcription is restored only partially when reintroduced by plasmid into taf1 spt3 double mutant yeast strains.

Abstract excerpt

In Saccharomyces cerevisiae, class II gene promoters contain two classes of TATA elements: the TATA box and the TATA-like element. Functional loss of TFIID and SAGA transcription complexes selectively impacts steady-state mRNA levels expressed from TATA-like element-containing (i.e., TATA-less) and TATA box-containing promoters, respectively. While nascent RNA analysis has revealed that TFIID and SAGA are...

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