Transcriptional regulator of RNA polII, SAGA, subunit
The yeast SAGA complex is a multifunctional coactivator that regulates transcription by RNA polymerase II. It is formed of five major modular subunits and shows a high degree of structural conservation to human TFTC and STAGA. The complex can also be conceived of as consisting of two histone-fold-containing core subunits, and this family is one of these. As a family it is likely to carry binding regions for interactions with a number of the other components of the complex.