At the time Edman started working on Angiotensin, it was just being recognized that proteins are distinct entities with a defined
molecular mass,
electric charge and
structure. This inspired Edman to develop a method, that could be used to determine the sequence of
amino acids in the protein. In 1947, he was awarded a travel stipend to go to
Rockefeller Institute of Medical Research. When he returned to Sweden in 1950 to be an assistant professor at the
University of Lund, he published his first paper using the method to determine the sequence of a protein, later known as
Edman degradation. To his death, he continued to work to improve the method to be able to determine longer stretches with smaller amounts of sample. == Late career ==