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. Author manuscript; available in PMC: 2012 Jan 1.
Published in final edited form as: Nat Methods. 2011 May 15;8(7):587–591. doi: 10.1038/nmeth.1609

Table 1.

Search results for archive of 14.5 million spectra of Shewanella oneidensis MR-1. For each fraction of the full dataset, the table compares the identifications (number of proteins, peptides and spectra/cluster annotations) made by a regular database search and by searching the clusters in the archive. The searches were done against a database of S. oneidensis protein sequences with false discovery rate of 2%.

Regular database search Archive clusters search
Dataset fraction Num. spectra searched Num. protein ids Num. peptide ids Num. spectra annotated Num. clusters searched Num. protein ids Num. peptide ids Num. annotations
Clusters Spectra
1/5 2.9M 2,257 28,083 0.5M 0.61M 2,304 29,948 0.18M 0.75M
2/5 5.8M 2,435 33,866 0.95M 1.06M 2,471 35,648 0.28M 1.52M
3/5 8.7M 2,518 37,093 1.42M 1.49M 2,566 39,355 0.37M 2.34M
4/5 11.6M 2,561 39,205 1.84M 1.89M 2,611 41,418 0.44M 3.09M
5/5 14.5M 2,608 40,680 2.28M 2.29M 2,660 43,415 0.51M 3.96M