Whereas many high throughput techniques to investigate protein interactions can only tell you which protein interacts with which other proteins, molecular structure can give fine details about which specific parts are interacting and what kinds of chemical bonds mediate that interaction.
Whereas many high throughput techniques to investigate protein interactions can only tell you which protein interacts with which other proteins can give fine details about which specific parts are interacting and what kinds of chemical bonds mediate that interaction. Other proteins are molecular structure.