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. This protein also acts as a metastasis suppressor. Two alternatively spliced transcript variants encoding different isoforms have been described for this gene.[6]
^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
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Boyer TG, Martin ME, Lees E, Ricciardi RP, Berk AJ (May 1999). "Mammalian Srb/Mediator complex is targeted by adenovirus E1A protein". Nature. 399 (6733): 276–9. Bibcode:1999Natur.399..276B. doi:10.1038/20466. PMID10353252. S2CID4400507.
Stevens JL, Cantin GT, Wang G, Shevchenko A, Shevchenko A, Berk AJ (Apr 2002). "Transcription control by E1A and MAP kinase pathway via Sur2 mediator subunit". Science. 296 (5568): 755–8. Bibcode:2002Sci...296..755S. doi:10.1126/science.1068943. PMID11934987. S2CID19392260.
Goldberg SF, Miele ME, Hatta N, Takata M, Paquette-Straub C, Freedman LP, Welch DR (Jan 2003). "Melanoma metastasis suppression by chromosome 6: evidence for a pathway regulated by CRSP3 and TXNIP". Cancer Research. 63 (2): 432–40. PMID12543799.