MED14, ARC150, CRSP2, CXorf4, DRIP150, EXLM1, RGR1, TRAP170, Mediator of RNA polymerase II transcription subunit 14, Activator-recruited cofactor 150kD component, Cofactor required for Sp1 transcriptional activation subunit 2, Mediator complex subunit 14, RGR1 homolog, Thyroid hormone receptor-associated protein complex 170kD component, Transcriptional coactivator CRSP150, Vitamin D3 receptor-interacting protein complex 150kD component

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 contains a bipartite nuclear localization signal. This gene is known to escape chromosome X-inactivation.