Fig. 2
From: Comprehensive Mass Spectral Libraries of Human Thyroid Tissues and Cells
Spectral library characteristics and comparison among four instruments: ZenoTOF 7600, Q Exactive HF, Orbitrap Exploris 480, and timsTOF Pro. (a–c) The counts of (a) fragment ion types, (b) fragment charge states, and (c) fragment counts per precursor in the spectral library. (d) The distribution of precursor m/z. (e) The counts of precursor charge states. (f) The distribution of identified peptide lengths. (g) The numbers of modified peptide. Modifications: [+16], methionine oxidation; [+42], N-terminal acetylation; [+57], cysteine carbamidomethylation. (h) The numbers of peptides without and with missed cleavage. (i) Identified peptide counts per protein. (j) Distribution of sequence coverage ratios for each protein. (k) Pearson correlations of iRT values for precursors with +2 and +3 charges. (l) Scatter and density plots of precursor ion mobility at different retention time for timsTOF Pro.
