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What is a protein? A biologist explains

  • Written by Nathan Ahlgren, Assistant Professor of Biology, Clark University
What is a protein? A biologist explainsJust 20 amino acids for chains in various combinations to create the thousands of varieties of proteins in our body.David Goodsell/ProteinDatabase, CC BY-SA

Editor’s note: Nathan Ahlgren is an assistant professor of biology at Clark University. In this interview, he explains exactly what proteins are, how they are made, and the wide variety...

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