LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Iron-hydrogenase molecule. Computer model showing the molecular structure of an iron-hydrogenase ([FE]-hydrogenase) enzyme from the Methanocaldococcus jannaschii archaeon. Hydrogenase enzymes catalyse the reversible oxidation of hydrogen and play a vital role in anaerobic metabolism. Archaea are a group of single-celled microorganisms that are similar to, but evolutionarily distinct from bacteria.
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