DNA HU Chromatin 2 (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Change in the architecture of the bacterial chromosome during the adaptation to an acidic environment is controlled by the DNA binding protein called HU and its interaction with DNA. Credit Michal Hammel/Berkeley Lab Usage Restrictions None License Licensed content 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.