Rsp5 promotes Gene Activation mediated by 9aaTAD Transcription Factors Oaf1 and Gal4

Nine-amino-acid transactivation domain, 9aaTAD, defines a large superfamily of yeast and mammals transcription factors. The transactivation of the 9aaTAD has been addressed to multiple general co-activators TAF9, MED15, CBP and p300. We demonstrate for the 9aaTAD transcription factors Oaf1 and Gal4 functional and physical interaction with E3-Ubiquitin Ligase Rsp5. The Rsp5-associations with RNA polymerase II and TFIID were reported previously.