| 摘要 |
The present invention relates to a method for the determination of the species profile of a protein-interacting compound, comprising the steps of a) providing a protein preparation derived from one species (species-1) containing a species-1-variant of said protein, b) providing a protein preparation derived from another species (species-2) containing a species-2-variant of said protein, c) mixing said preparations, d) contacting said mixed protein preparations with a ligand of said protein and with a given protein-interacting compound under conditions allowing the formation of a complex between said ligand and said protein, and e) detecting the complexes formed in step d) with the help of mass spectrometry. |
