Graphical Abstract (image) CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences Share Print E-Mail Caption Visualizing gene expression dynamics revealed how Mediator directs the delivery of the cellular gene-copying machine (RNA polymerase II) particularly to a subset of cell identity genes. Credit Martin Jäger / CeMM Usage Restrictions To be used only in the framework of this scientific publication and with credit to CeMM. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.