Abstract
ENY2 is a multifunctional protein, a component of the SAGA complex (protein complex involved in the regulation of transcription, possessing histone-acetyltransferase and H2B-histone-deubiquitinylating activities [1]) and TREX-2 (complex involved in the mRNA nuclear export [2]). Besides this, the interactions of ENY2 with DNA-binding insulator proteins Su(Hw) and dCTCF have been described as essential for the barrier activity of corresponding insulators [3, 4]. In this study, we described the formation of mutually exclusive complexes of ENY2 with insulator proteins and Sgfl1-a component of the SAGA complex, direct binding partner for ENY2.
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