Fig. 3
From: Large scale analysis of amino acid substitutions in bacterial proteomics
The number of the true and false identifications with speptide algorithm for the samples in the validation study with 5 % and 1 % FDR. Each diagram shows: (i) the number of the peptides (spectra on the right) identified for the selected isolate for two settings of FDR parameters, (ii) the number of NA identifications (see in the text), (iii) the number of false identifications, (iv) the total number of peptides (spectra on the right) with SAPs which could be detected