Med10 is one of the protein subunits of the Mediator complex, tethered to Rgr1 protein. The Mediator complex is required for the transcription of most RNA polymerase II (Pol II)-transcribed genes. Med10 specifically mediates basal-level HIS4 transcription via Gcn4, and, additionally, there is a putative requirement for Med10 in Bas2-mediated transcription [1]. Med10 is part of the middle region of Mediator [3].

1: Activator-specific requirement of yeast mediator proteins for RNA polymerase II transcriptional activation. Han SJ, Lee YC, Gim BS, Ryu GH, Park SJ, Lane WS, Kim YJ; Mol Cell Biol. 1999;19:979-988. PMID:9891034

2: Human Mediator enhances basal transcription by facilitating recruitment of transcription factor IIB during preinitiation complex assembly. Baek HJ, Kang YK, Roeder RG; J Biol Chem. 2006;281:15172-15181. PMID:16595664

3: 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