RNA Polymerase (image) Rockefeller University Share Print E-Mail Caption RNA polymerase, an enzyme essential to life, uses a specialized clamp to latch onto DNA. Credit Laboratory of Molecular Biophysics at The Rockefeller University Usage Restrictions Image may be used only to illustrate the research described in the accompanying release. 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.