The first peptide medicine saved lives in 1922
→ 1921: insulin is isolated in Toronto.
→ January 1922: 14-year-old Leonard Thompson gets the first insulin injection.
→ 1923: the Nobel Prize goes to Banting and Macleod.
→ Insulin is a peptide: 51 amino acids in two chains.
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Sources
Sources 📚
• The Nobel Prize in Physiology or Medicine 1923 — nobelprize.org
• "The discovery of insulin" — nobelprize.org
• UniProt P01308 (INS): mature insulin = A chain 21 + B chain 30 amino acids