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J Proteome Res. 2007 Oct;6(10):4063-7. Epub 2007 Aug 21.

SwedCAD, a database of annotated high-mass accuracy MS/MS spectra of tryptic peptides.

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Laboratory for Biological and Medical Mass Spectrometry, Biomedical Centre, Box 583, Uppsala University, SE-75123 Uppsala, Sweden.


A database of high-mass accuracy tryptic peptides has been created. The database contains 15 897 unique, annotated MS/MS spectra. It is possible to search for peptides according to their mass, number of missed cleavages, and sequence motifs. All of the data contained in the database is downloadable, and each spectrum can be visualized. An example is presented of how the database can be used for studying peptide fragmentation. Fragmentation of different types of missed cleaved peptides has been studied, and the results can be used to improve identification of these types of peptides.

[Indexed for MEDLINE]

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