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Transcription factor II D (TFIID) is one of several general transcription factors that make up the RNA polymerase II preinitiation complex.[1] TFIID is itself composed of several subunits called TBP-associated factors (TAFs, of which there are 14) and the TATA Binding Protein (TBP).

In a test tube, only TBP is necessary for transcription at promoters that contain a TATA box.[2] TAFs, however, add promoter selectivity, especially if there is no TATA box sequence for TBP to bind to.

Subunits in the TFIID complex include:[2]

See also

References

  1. ^ Lewin, Benjamin (2004). Genes VIII. Upper Saddle River, NJ: Pearson Prentice Hall. pp. 636–637. ISBN 0-13-144946-X.  
  2. ^ a b Lee TI, Young RA (2000). "Transcription of eukaryotic protein-coding genes". Annu. Rev. Genet. 34: 77–137. doi:10.1146/annurev.genet.34.1.77. PMID 11092823.  

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