NCIt definition : Transcription initiation factor TFIID subunit 9 (264 aa, 29 kDa) is encoded by the
human TAF9 gene. This protein plays a role in p53-regulated gene transcription.;
NCIt note : TBP-Associated Factor 9 is a small TFIID subunit that binds to the basal transcription
factor GTFIIB as well as transcriptional activators. A component of the PCAF complex
and of the STAGA transcription coactivator-HAT complex, TAF9 is a p53 coactivator
and interacts with viral transactivator VP16. TAF9 and TP53 bind via TP53 N-terminal
amino acids that are essential for transcription.;