Researchers decode 3D architecture of SARS-CoV-2 main protease

Researchers decode 3D architecture of SARS-CoV-2 main protease

Teams around the world are working hard to develop active substances against SARS-CoV-2. The structural analysis of functional proteins of the virus is very helpful for this goal. The function of a protein is closely related to its 3D architecture. If this 3D architecture is known, it is possible to identify specific points of attack for active substances. A special protein is responsible for the reproduction of the viruses: the viral main protease (Mpro or also 3CLpro). A team led by Prof. Dr. Rolf Hilgenfeld, University of Lübeck, has now decoded the 3D architecture of the main protease of SARS-CoV-2. The researchers have used the high-intensity X-ray light from the BESSY II facility of the Helmholtz-Zentrum Berlin. For such issues of highest relevance, we can offer fast track access to our instruments." Dr. Manfred Weiss, who heads the Research Group Macromolecular Crystallography (MX) at HZB At the so-called MX instruments tiny protein crystals can be analyzed with highly brilliant X-ray light. The images contain information about the 3D architecture of the protein molecules. The complex shape of the protein molecule and its electron density is then calculated by computer algorithms. The 3D architecture provides concrete starting points for developing active substances or inhibitors. These drugs could dock specifically to target points of the macromolecule and impede its function. Rolf Hilgenfeld is a world-renowned expert in the field of virology and already developed an inhibitor against the SARS-virus during the 2002/2003 SARS pandemic. In 2016, he succeeded in deciphering an enzyme of the Zika virus. Source: Helmholtz-Zentrum Berlin für Materialien und Energie Journal reference: Zhang, L., et al. (2020) Crystal structure of SARS-CoV-2 main protease provides a basis for design of improved α-ketoamide inhibitors. Science . doi.org/10.1126/science.abb3405 .



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