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Fig. 8 | BMC Bioinformatics

Fig. 8

From: Evaluation of open search methods based on theoretical mass spectra comparison

Fig. 8

Low Information Peaks Rate (LIPR) for 3 different PSMs. Masses are in Dalton, and the “Sequences” column in each example represents all fragmented peptides having the same mass for the considered PSM. A green check symbol denotes similar sequences, whereas a red cross denotes distinct sequences. a No common masses corresponds to distinct amino acid sequences, thus the LIPR for this PSM is equal to 0%; b 2 common masses over a total of 7 correspond to distinct sequences, thus the LIPR for this PSM is equal to \(\frac{2}{7}=28.57\%\); c all common masses in this PSM correspond to distinct sequences, hence the LIPR for this PSM is equal to 100%

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