ADP-ribosylation is an important post-translational protein modification, yet enzymes capable of removing the protein-proximal ADP-ribose were unknown.
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Protein activity is strictly regulated. Incorrect or poor protein regulation can lead to uncontrolled growth and thus cancer or chronic inflammation. Members of the Institute of Veterinary Biochemistry and Molecular Biology from the University of Zurich have identified enzymes that can regulate the activity of medically important proteins. Their discovery enables these proteins to be manipulated very selectively, opening up new treatment methods for inflammations and cancer. The work was published online on March 10, 2013 in Nature Structural & Molecular Biology. A related article was also published online at the same time in the same journal. For a healthy organism, it is crucial for proteins to be active or inactive at the right time. The corresponding regulation is often based on a chemical modification of the protein structure: Enzymes attach small molecules to particular sites on a protein or remove them, thereby activating or deactivating the protein. Identification of the enzymes and related mechanisms opens up the possiblity for new related treatments in related processes. Click on the iage or title to learn more.