Timelines: 1953
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A complete protein sequence
Molecular precision

Frederick Sanger of the British Medical Research Council's Laboratory of Molecular Biology in Cambridge announces the first complete sequence of a protein, bovine insulin. Using new chromatographic separation techniques, Sanger demonstrates that the two polypeptide chains of insulin have precise amino acid sequences. The finding revolutionizes protein chemistry. For this work, Sanger is awarded the Nobel Prize in Chemistry in 1958.


























