This family of mediator complex subunit 2 proteins is conserved in fungi. Cyclin-dependent kinase CDK8 or Srb10 interacts with and phosphorylates Med2. Post-translational modifications of Mediator subunits are important for regulation of gene expression [2].

1: A unified nomenclature for protein subunits of mediator complexes linking transcriptional regulators to RNA polymerase II. Bourbon HM, Aguilera A, Ansari AZ, Asturias FJ, Berk AJ, Bjorklund S, Blackwell TK, Borggrefe T, Carey M, Carlson M, Conaway JW, Conaway RC, Emmons SW, Fondell JD, Freedman LP, Fukasawa T, Gustafsson CM, Han M, He X, Herman PK, Hinnebusch AG, Holmberg S, Mol Cell. 2004;14:553-557. PMID:15175151

2: Site-specific Srb10-dependent phosphorylation of the yeast Mediator subunit Med2 regulates gene expression from the 2-microm plasmid. Hallberg M, Polozkov GV, Hu GZ, Beve J, Gustafsson CM, Ronne H, Bjorklund S; Proc Natl Acad Sci U S A. 2004;101:3370-3375. PMID:14988503