The analysis of the endogenous peptides by nano-electrospray ionization with a linear quadrupole ion trap showed highly significant protein p-values and FDR-corrected q-values from the best fit of MS/MS spectra to tryptic peptides.
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The sentences
The scatter plot of peptide intensity versus [M + H] + showed an increasing trend (p-value: ≤ 2.2e−16) consistent with greater momentum on detector impact (Fig. 3 e).