VOLKER STEGER / SCIENCE PHOTO LIBRARY VOLKER STEGER / SCIENCE PHOTO LIBRARY
Human protein map. Researcher Pascal Braun studying a wall chart showing information about human proteins. The complete chart of all the proteins in an organism is called its proteome. This is complementary to its genome, which is the list of all the genes in an organism. Genes are lengths of DNA that form the biochemical instructions needed to make proteins. Proteins form the vast majority of the tissues in an organism. Determining the structure and function of proteins (proteomics) provides a greater understanding of how an organism works. Braun works at the Harvard Institute for Proteomics at Harvard University, USA. Photographed in 2002.
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