Solution of the structure of hemoglobin, a protein with 10,000 atoms. This was the culmination of 30 years of research by Perutz.

Order of authorship in the original paper: Perutz, Rossmann, Culis, Muirhead, Will, North.

In 1962 Perutz shared the Nobel Prize in Chemistry with his student John Cowdery Kendrew "for their studies of the structures of globular proteins."