This is the SEP domain found in Spt20 proteins from both human and yeast. The Spt20 protein is part of the SAGA complex which is a large complex mediating histone deacetylation. Yeast Spt20 has been shown to play a role in structural integrity of the ...
This is the SEP domain found in Spt20 proteins from both human and yeast. The Spt20 protein is part of the SAGA complex which is a large complex mediating histone deacetylation. Yeast Spt20 has been shown to play a role in structural integrity of the SAGA complex as as no intact SAGA could be purified in spt20 deletion strains [1]. Spt20 is indispensable under endoplasmic reticulum (ER) stress conditions, being involved in the regulation of stress-responsive genes transcription. This domain interacts with LisH motif helices of Taf5 [2,3].
This family includes the Spt3 yeast transcription factors and the 18kD subunit from human transcription initiation factor IID (TFIID-18). Determination of the crystal structure reveals an atypical histone fold [1]