Data from "DECODE - Development of a Multi-Analytical Strategy for the Biocodicological Study of Parchment Degradation"

Supplementary Information 3 summarizes all peptides (trypsin/LysC- and COLase III-derived) that were NOT observed after artificial aging (referred to as "lost") or ONLY observed after artificial aging (referred to as "new"). Technical details Supplementary Information 1 is an Excel spreadsheet consisting of ten individual tables (Table S1-S10). It summarizes: measured and theoretical m/z-values mass error between measured and theoretical m/z-values (in ppm) peptide assignment peptide sequence adduct type (H, Na, K) overview, if peptide was assigned by theoretical in-silico digest (Expasy), in-solution digestion, or on-tissue digestion results of the Mascot database search: score and threshold results of NCBI protein BLAST (including E-value and peptide uniqueness) and the protein accession number.

Supplementary Information 2 is an Excel spreadsheet consisting of ten individual tables (Table S11-S20). It summarizes: measured and theoretical m/z-values mass error between measured and theoretical m/z-values (in ppm) assigned ion species, e.g., [M+H]+ and the lipid name based on tentative assignments by LIPID MAPS. Supplementary Information 3 is an Excel spreadsheet consisting of 16 individual tables (Table S21-S36).

It summarizes: measured and theoretical m/z-values mass error between measured and theoretical m/z-values (in ppm) peptide assignment and sequence in case of peptides, only observed after artificial aging, it further contains a calculation of potential additional modifications, e.g. deamidation, SO2-adducts, etc.) and the respective theoretical m/z-values of corresponding unmodified peptides.