Dps and Bacterial DNA (image) University of Rochester Share Print E-Mail Caption Dps (in green) densely compacts DNA (blue strands), but this doesn't have any detectable effect on gene expression. RNA polymerase (pink) is still able to bind to the DNA and make RNA transcripts and express genes (shown in purple), while proteins that could cut and damage DNA are completely blocked. Credit University of Rochester illustration / Elio Abbondanzieri Usage Restrictions None 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.