MED16 is a component of the Mediator complex, a coactivator involved in the regulated transcription of nearly all RNA polymerase II-dependent genes. It mediator functions as a bridge to convey information from gene-specific regulatory proteins to the basal RNA polymerase II transcription machinery. Mediator is recruited to promoters by direct interactions with regulatory proteins and serves as a scaffold for the assembly of a functional preinitiation complex with RNA polymerase II and the general transcription factors. Protein Interaction Partner: HECW2, CDK19, CDK8, UBC, MED19, MED26, EPAS1, FBXW7, MED11, MED8, MED29, MED9, MED18, MED4, RALY, MED13, MED12, MED24, MED21, MED14, MED1, CTDP1, HIST1H3A, MED10, MED25, MED15, VDR, TRA, MED28, OBFC1, ZC3H13, QKI, TADA2A, SUPT7L, SUPT3H, MYC, KAT2A, TRRAP Protein Size: 663