PHILIPPE PLAILLY / SCIENCE PHOTO LIBRARY PHILIPPE PLAILLY / SCIENCE PHOTO LIBRARY
Lysozyme molecule. Computer graphic of a molecule of lysozyme, showing its complex three-dimensional structure. Lysozyme is an anti-bacterial enzyme widely distributed in human body fluids, including tears and saliva. It is also found in egg white and plant latex. Lysozyme disrupts the polysaccharide components of bacterial cell walls, leaving them susceptible to destruction. Researchers are establishing which parts of the lysozyme molecule are effective against bacteria. Molecular graphics like this are calculated from X-ray diffraction studies of the substance. Photographed at the Pasteur Institute, Paris.
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