Saccharomyces cerevisiae RGR1 mediator complex subunit affects chromatin structure, transcriptional regulation of diverse genes and sporulation, required for glucose repression, HO repression, RME1 repression and sporulation [2][3]. This subunit is also found in higher eukaryotes and Med14 is the agreed unified nomenclature for this subunit. Med14 is found in the tail region of Mediator [5].

1: A novel human SRB/MED-containing cofactor complex, SMCC, involved in transcription regulation. Gu W, Malik S, Ito M, Yuan CX, Fondell JD, Zhang X, Martinez E, Qin J, Roeder RG; Mol Cell. 1999;3:97-108. PMID:10024883

2: Requirement for RGR1 and SIN4 in RME1-dependent repression in Saccharomyces cerevisiae. Covitz PA, Song W, Mitchell AP; Genetics. 1994;138:577-586. PMID:7851756

3: Genetic and physical interactions between yeast RGR1 and SIN4 in chromatin organization and transcriptional regulation. Jiang YW, Dohrmann PR, Stillman DJ; Genetics. 1995;140:47-54. PMID:7635307

4: Analysis of Schizosaccharomyces pombe mediator reveals a set of essential subunits conserved between yeast and metazoan cells. Spahr H, Samuelsen CO, Baraznenok V, Ernest I, Huylebroeck D, Remacle JE, Samuelsson T, Kieselbach T, Holmberg S, Gustafsson CM; Proc Natl Acad Sci U S A 2001;98:11985-11990. PMID:11572939

5: Structure-system correlation identifies a gene regulatory Mediator submodule. Lariviere L, Seizl M, van Wageningen S, Rother S, van de Pasch L, Feldmann H, Strasser K, Hahn S, Holstege FC, Cramer P; Genes Dev. 2008;22:872-877. PMID:18381891