A Protein DNA Sensor (IMAGE) Thomas Jefferson University Caption A protein DNA sensor. 3-D-structures of the immature asymmetric conformation of portal protein (left), which has high affinity for DNA and the mature final state (right) that is perfectly 12-fold symmetric. Credit Cingolani Lab Usage Restrictions May be used in articles covering Dr. Cingolani's January 30, 2017 publication inM<i> Nature Communications</i>. 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.