Protein Dr1 is a protein that in humans is encoded by the DR1 gene. [5] [6] [7]
This gene encodes a TBP- (TATA box-binding protein) associated phosphoprotein that represses both basal and activated levels of transcription. The encoded protein is phosphorylated in vivo and this phosphorylation affects its interaction with TBP. This protein contains a histone fold motif at the amino terminus, a TBP-binding domain, and a glutamine- and alanine-rich region. The binding of DR1 repressor complexes to TBP-promoter complexes may establish a mechanism in which an altered DNA conformation, together with the formation of higher order complexes, inhibits the assembly of the preinitiation complex and controls the rate of RNA polymerase II transcription. [7]
In molecular biology, the TATA box is a sequence of DNA found in the core promoter region of genes in archaea and eukaryotes. The bacterial homolog of the TATA box is called the Pribnow box which has a shorter consensus sequence.
General transcription factors (GTFs), also known as basal transcriptional factors, are a class of protein transcription factors that bind to specific sites (promoter) on DNA to activate transcription of genetic information from DNA to messenger RNA. GTFs, RNA polymerase, and the mediator constitute the basic transcriptional apparatus that first bind to the promoter, then start transcription. GTFs are also intimately involved in the process of gene regulation, and most are required for life.
The TATA-binding protein (TBP) is a general transcription factor that binds specifically to a DNA sequence called the TATA box. This DNA sequence is found about 30 base pairs upstream of the transcription start site in some eukaryotic gene promoters.
Transcription factor TFIIA is a nuclear protein involved in the RNA polymerase II-dependent transcription of DNA. TFIIA is one of several general (basal) transcription factors (GTFs) that are required for all transcription events that use RNA polymerase II. Other GTFs include TFIID, a complex composed of the TATA binding protein TBP and TBP-associated factors (TAFs), as well as the factors TFIIB, TFIIE, TFIIF, and TFIIH. Together, these factors are responsible for promoter recognition and the formation of a transcription preinitiation complex (PIC) capable of initiating RNA synthesis from a DNA template.
Transcription initiation factor TFIID subunit 6 is a protein that in humans is encoded by the TAF6 gene.
Transcription initiation factor TFIID subunit 7 also known as TAFII55 is a protein that in humans is encoded by the TAF7 gene.
Transcription initiation factor TFIID subunit 1, also known as transcription initiation factor TFIID 250 kDa subunit (TAFII-250) or TBP-associated factor 250 kDa (p250), is a protein that in humans is encoded by the TAF1 gene.
TAF9 RNA polymerase II, TATA box binding protein (TBP)-associated factor, 32kDa, also known as TAF9, is a protein that in humans is encoded by the TAF9 gene.
Transcription initiation factor TFIID subunit 4 is a protein that in humans is encoded by the TAF4 gene.
Transcription initiation factor TFIID subunit 2 is a protein that in humans is encoded by the TAF2 gene.
Transcription initiation factor TFIID subunit 10 is a protein that in humans is encoded by the TAF10 gene.
Transcription initiation factor TFIID subunit 5 is a protein that in humans is encoded by the TAF5 gene.
Transcription initiation factor TFIID subunit 11 also known as TAFII28, is a protein that in humans is encoded by the TAF11 gene.
TATA-binding protein-associated factor 2N is a protein that in humans is encoded by the TAF15 gene.
Dr1-associated corepressor is a protein that in humans is encoded by the DRAP1 gene.
TATA-binding protein-associated factor 172 is a protein that in humans is encoded by the BTAF1 gene.
Transcription initiation factor TFIID subunit 13 is a protein that in humans is encoded by the TAF13 gene.
Transcription initiation factor TFIID subunit 8 is a protein that in humans is encoded by the TAF8 gene.
Transcription initiation factor IIA subunit 1 is a protein that in humans is encoded by the GTF2A1 gene.
General transcription factor IIE subunit 2 (GTF2E2), also known as transcription initiation factor IIE subunit beta (TFIIE-beta), is a protein that in humans is encoded by the GTF2E2 gene.