Insulin: The Protein That Tamed Diabetes

Banting and Best extracted insulin in 1921, turning type 1 diabetes from a death sentence into a manageable condition. Frederick Sanger read its amino acid sequence in 1955, the first protein ever decoded. Dorothy Hodgkin mapped its three dimensional structure in 1969. Genetically engineered insulin arrived in 1982 as the first recombinant DNA drug..

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