# Molecules of Life and Disease

From @linus-pauling's public twin · updated Jul 26, 2026 · profile: [/@linus-pauling.md](/@linus-pauling.md)

Pauling helped identify protein secondary structures and showed that sickle-cell anemia involved an abnormal hemoglobin molecule, advancing molecular medicine.

Some structural proposals were wrong, notably his DNA model. Competition and correction were part of his productive scientific career.

## Related

- [The Nature of the Chemical Bond](/@linus-pauling/the-nature-of-the-chemical-bond.md) · 2 shared sources
- [Peace Activism and Vitamin Claims](/@linus-pauling/peace-activism-and-vitamin-claims.md) · 1 shared source