Mediator of RNA polymerase II transcription subunit 7 is an enzyme that in humans is encoded by the MED7gene.
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.
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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.
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.
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.
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.