"This experiment showed that proteins maintain 3-dimensional order and tight binding between their interacting parts and that the structural information is inherent in the protein itself, foreshadowing both Anfinsen's later work showing that sequence determines structure and also the idea that hormones or other small molecules can bind tightly and specifically to proteins, a concept basic to how pharmaceutical companies design drugs today.Two years later, the protein structure of myoglobin confirmed such specific 3D relationships.