Down-Regulator of Transcription 1
[Encoded by human DR1 Gene, TATA-Binding Protein-Associated Phosphoprotein represses both basal and activated levels of transcription. DR1 phosphorylation affects its interaction with TBP. The DR1 protein contains a histone fold motif at the amino terminus, a TBP-binding domain, and a glutamine- and alanine-rich region and represses transcription with DRAP1 by inhibiting pre-initiation complex formation through interaction with TFIID and DNA. 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. (NCI) ( NCI )]
UMLS (NCI) C0170954- Amino Acid, Peptide, or Protein
- Biologically Active Substance
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