Dr1-associated corepressor is a protein that in humans is encoded by the DRAP1gene.[1][2]
Transcriptional repression is a general mechanism for regulating transcriptional initiation in organisms ranging from yeast to humans. Accurate initiation of transcription from eukaryotic protein-encoding genes requires the assembly of a large multiprotein complex consisting of RNA polymerase II and general transcription factors such as TFIIA, TFIIB, and TFIID. DR1 is a repressor that interacts with the TATA-binding protein (TBP) of TFIID and prevents the formation of an active transcription complex by precluding the entry of TFIIA and/or TFIIB into the preinitiation complex. The protein encoded by this gene is a corepressor of transcription that interacts with DR1 to enhance DR1-mediated repression. The interaction between this corepressor and DR1 is required for corepressor function and appears to stabilize the TBP-DR1-DNA complex.[2]
↑Iratni, Rabah; Yan Yu-Ting; Chen Canhe; Ding Jixiang; Zhang Yi; Price Sandy M; Reinberg Danny; Shen Michael M (Dec 2002). "Inhibition of excess nodal signaling during mouse gastrulation by the transcriptional corepressor DRAP1". Science. United States. 298 (5600): 1996–9. Bibcode:2002Sci...298.1996I. doi:10.1126/science.1073405. PMID12471260.
↑Mermelstein, F; Yeung K; Cao J; Inostroza J A; Erdjument-Bromage H; Eagelson K; Landsman D; Levitt P; Tempst P; Reinberg D (Apr 1996). "Requirement of a corepressor for Dr1-mediated repression of transcription". Genes Dev. UNITED STATES. 10 (8): 1033–48. doi:10.1101/gad.10.8.1033. ISSN0890-9369. PMID8608938.
Lewis BA, Sims RJ, Lane WS, Reinberg D (2005). "Functional characterization of core promoter elements: DPE-specific transcription requires the protein kinase CK2 and the PC4 coactivator". Mol. Cell. 18 (4): 471–81. doi:10.1016/j.molcel.2005.04.005. PMID15893730.
Stelzl U, Worm U, Lalowski M, et al. (2005). "A human protein-protein interaction network: a resource for annotating the proteome". Cell. 122 (6): 957–68. doi:10.1016/j.cell.2005.08.029. PMID16169070.
Assmann EM, Alborghetti MR, Camargo ME, Kobarg J (2006). "FEZ1 dimerization and interaction with transcription regulatory proteins involves its coiled-coil region". J. Biol. Chem. 281 (15): 9869–81. doi:10.1074/jbc.M513280200. PMID16484223.
Lim J, Hao T, Shaw C, et al. (2006). "A protein-protein interaction network for human inherited ataxias and disorders of Purkinje cell degeneration". Cell. 125 (4): 801–14. doi:10.1016/j.cell.2006.03.032. PMID16713569.