Hydrogenase (image) Nara Institute of Science and Technology Share Print E-Mail Caption Hydrogenase catalyzes reversible oxidation of H2. Credit Shun Hirota Usage Restrictions This image may be used only with appropriate credit. 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.