| 摘要 |
Provided is an apparatus for identification of a protein modification which identifies the protein modification, including: a fragment ion mass pattern producing unit for cutting a peptide modifier sequence with a virtual enzyme and producing a fragment ion mass pattern including mass information of the virtual fragment ions, a protein modification database for storing protein modification information including a kind and mass of protein modification, and a mass shift identifying unit for extracting a plurality of mass shift classes including fragment ions similar to each other in mass shift based on a mass shift of fragment ions extracted from a protein to be analyzed, combining the plurality of mass shift classes to produce a plurality of mass shift class sets, and identifying at least one protein modification included in at least one of the plurality of mass shift class sets based on the fragment ion mass pattern and the protein modification information.
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