Journal
TRENDS IN BIOCHEMICAL SCIENCES
Volume 25, Issue 2, Pages 59-63Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/S0968-0004(99)01527-3
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Transcription of eukaryotic structural genes requires the assembly of RNA polymerase II and the general transcription factors (GTFs) on the promoter to form a pre-initiation complex (PIC), Among these, TFIID is the major sequence-specific DNA-binding component; the other GTFs enter the PIC primarily through protein-protein interactions, TFIID is composed of the TATA-box-binding protein (TBP) and multiple TBP-associated factors (TAF(II)s), Unexpectedly, TAF(II)s have also been found in other multi-subunit complexes involved in transcription. Whereas TBP is a general transcription factor, a variety of in vivo studies have demonstrated that TAF(II)s are highly promoter selective. Here review studies on the role of TAF(II)s in genome-wide transcription and their mechanism of action.
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