Frederick Sanger
Shortly thereafter Professor Frederick Wessely, Director of the Chemistry Institute recommended Tuppy to Max Perutz for postdoctoral work at Cambridge University. Perutz, in turn, recommended Tuppy to Frederick Sanger. Thus Tuppy joined Sanger's laboratory at Cambridge where he worked on the amino acid sequence of bovine insulin, sequencing its beta chain. (Sanger was awarded the Nobel Prize in 1958 for sequencing insulin.)