Somesh, B.P., Sigurdsson, S., Saeki, H., Erdjument-Bromage, H., Tempst, P., Svejstrup, J.Q. (2007). Communication between distant sites in RNA polymerase II through ubiquitylation factors and the polymerase CTD. Cell 129: 57-68.
https://doi.org/10.1016/j.cell.2007.01.046

Effect of ubiquitylation on the activity of RNA pomymerase II

Uniprot ID	Systematic gene name	Standard gene name	Position	Modification type
P04050	YDL140C	RPO21	330	Ubiquitination
P04050	YDL140C	RPO21	695	Ubiquitination