Description
MED18 is a component of the Mediator complex, which is a coactivator for DNA-binding factors that activate transcription via RNA polymerase II. Using in vitro-translated epitope-tagged proteins for protein-binding assays, it is found that MED18 directly interacted with the Mediator subunit TRFP (MED20). The MED18-TRFP heterodimer could also be coimmunoprecipitated from cotransfected insect cells. The MED18 gene was mapped to chromosome 1p35.3 based on an alignment of the MED18 sequence with the genomic sequence