Cm. Gustafsson et al., IDENTIFICATION OF ROX3 AS A COMPONENT OF MEDIATOR AND RNA-POLYMERASE-II HOLOENZYME, The Journal of biological chemistry, 272(1), 1997, pp. 48-50
Yeast Rox3 protein, implicated by genetic evidence in both negative an
d positive transcriptional regulation, is identified as a mediator sub
unit by peptide sequence determination and is shown to copurify and co
immunoprecipitate with RNA polymerase II holoenzyme.