Novel predictions from radiation target analysis.

The unusual technique of radiation inactivation has been used to determine the mass of many different macromolecules. Most of the radiation target sizes obtained agree with the known protein structures. However, in several cases the sizes obtained were not easily interpreted since they did not agree with values determined by more conventional methods. Subsequent studies have shown that many of these perplexing radiation target sizes were indeed correct, often revealing unanticipated details about the nature of the systems being studied.