Answer
Max Perutz studied the structures of haemoglobin and myoglobin to win the Nobel Prize in 1962. These proteins are both involved in the transport of oxygen around the body. Haemoglobin is found in red blood cells, and myoglobin is found in muscle tissue. Perutz's work on these proteins helped to explain how they work, and has had a major impact on our understanding of human physiology.