Mediator of RNA polymerase II transcription subunit 17 is an enzyme that in humans is encoded by the MED17gene.[1][2][3]
The activation of gene transcription is a multistep process that is triggered by factors that recognize transcriptional enhancer sites in DNA. These factors work with co-activators to direct transcriptional initiation by the RNA polymerase II apparatus. The protein encoded by this gene is a subunit of the CRSP (cofactor required for SP1 activation) complex, which, along with TFIID, is required for efficient activation by SP1. This protein is also a component of other multisubunit complexes e.g. thyroid hormone receptor-(TR-) associated proteins which interact with TR and facilitate TR function on DNA templates in conjunction with initiation factors and cofactors.[3]
↑Ryu S, Zhou S, Ladurner AG, Tjian R (Feb 1999). "The transcriptional cofactor complex CRSP is required for activity of the enhancer-binding protein Sp1". Nature. 397 (6718): 446–50. Bibcode:1999Natur.397..446R. doi:10.1038/17141. PMID9989412.
↑ 2.02.1Ito M, Yuan CX, Malik S, Gu W, Fondell JD, Yamamura S, Fu ZY, Zhang X, Qin J, Roeder RG (Apr 1999). "Identity between TRAP and SMCC complexes indicates novel pathways for the function of nuclear receptors and diverse mammalian activators". Mol Cell. 3 (3): 361–70. doi:10.1016/S1097-2765(00)80463-3. PMID10198638.
↑Wallberg, Annika E; Yamamura Soichiro; Malik Sohail; Spiegelman Bruce M; Roeder Robert G (Nov 2003). "Coordination of p300-mediated chromatin remodeling and TRAP/mediator function through coactivator PGC-1alpha". Mol. Cell. United States. 12 (5): 1137–49. doi:10.1016/S1097-2765(03)00391-5. ISSN1097-2765. PMID14636573.
↑Chiba, N; Parvin J D (Oct 2001). "Redistribution of BRCA1 among four different protein complexes following replication blockage". J. Biol. Chem. United States. 276 (42): 38549–54. doi:10.1074/jbc.M105227200. ISSN0021-9258. PMID11504724.
↑Wada, Osamu; Oishi Hajime; Takada Ichiro; Yanagisawa Junn; Yano Tetsu; Kato Shigeaki (Aug 2004). "BRCA1 function mediates a TRAP/DRIP complex through direct interaction with TRAP220". Oncogene. England. 23 (35): 6000–5. doi:10.1038/sj.onc.1207786. ISSN0950-9232. PMID15208681.
↑Chiba, Natsuko; Parvin Jeffrey D (Aug 2002). "The BRCA1 and BARD1 association with the RNA polymerase II holoenzyme". Cancer Res. United States. 62 (15): 4222–8. ISSN0008-5472. PMID12154023.
Chiba N, Parvin JD (2001). "Redistribution of BRCA1 among four different protein complexes following replication blockage". J. Biol. Chem. 276 (42): 38549–54. doi:10.1074/jbc.M105227200. PMID11504724.
Wang Q, Sharma D, Ren Y, Fondell JD (2003). "A coregulatory role for the TRAP-mediator complex in androgen receptor-mediated gene expression". J. Biol. Chem. 277 (45): 42852–8. doi:10.1074/jbc.M206061200. PMID12218053.
Sato S, Tomomori-Sato C, Banks CA, et al. (2003). "Identification of mammalian Mediator subunits with similarities to yeast Mediator subunits Srb5, Srb6, Med11, and Rox3". J. Biol. Chem. 278 (17): 15123–7. doi:10.1074/jbc.C300054200. PMID12584197.
Sato S, Tomomori-Sato C, Banks CA, et al. (2004). "A mammalian homolog of Drosophila melanogaster transcriptional coactivator intersex is a subunit of the mammalian Mediator complex". J. Biol. Chem. 278 (50): 49671–4. doi:10.1074/jbc.C300444200. PMID14576168.
Wallberg AE, Yamamura S, Malik S, et al. (2004). "Coordination of p300-mediated chromatin remodeling and TRAP/mediator function through coactivator PGC-1alpha". Mol. Cell. 12 (5): 1137–49. doi:10.1016/S1097-2765(03)00391-5. PMID14636573.
Tomomori-Sato C, Sato S, Parmely TJ, et al. (2004). "A mammalian mediator subunit that shares properties with Saccharomyces cerevisiae mediator subunit Cse2". J. Biol. Chem. 279 (7): 5846–51. doi:10.1074/jbc.M312523200. PMID14638676.
Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID14702039.
Sato S, Tomomori-Sato C, Parmely TJ, et al. (2004). "A set of consensus mammalian mediator subunits identified by multidimensional protein identification technology". Mol. Cell. 14 (5): 685–91. doi:10.1016/j.molcel.2004.05.006. PMID15175163.
Wada O, Oishi H, Takada I, et al. (2004). "BRCA1 function mediates a TRAP/DRIP complex through direct interaction with TRAP220". Oncogene. 23 (35): 6000–5. doi:10.1038/sj.onc.1207786. PMID15208681.
Jang MK, Mochizuki K, Zhou M, et al. (2005). "The bromodomain protein Brd4 is a positive regulatory component of P-TEFb and stimulates RNA polymerase II-dependent transcription". Mol. Cell. 19 (4): 523–34. doi:10.1016/j.molcel.2005.06.027. PMID16109376.