RNAP and Rifampin (IMAGE) Rutgers University Caption Crystal structures of Mtb RNAP bound to rifampin (left) and Mtb RNAP bound to an AAP (right) show the Mtb RNAP interactions. Gray ribbons, Mtb RNAP backbone; gray, cyan, and green sticks, Mtb RNAP, rifampin, and AAP carbon atoms; red and blue sticks, oxygen and nitrogen atoms; green mesh, mFo-Fc electron density omit map; BH, Mtb RNAP bridge helix. Credit Wei Lin and Richard H. Ebright 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.