Schematic workflow for OxcyscPILOT. Panel (A) represents the cohort of WT/AD brain samples. Panel (B) shows the basic steps which include NEM-blocking (SNO)/reduction (total), tryptic digestion, selective reduction, and enrichment (SNO)/enrichment (total). Panel (C) represents the On-Resin dimethylation, TMT tagging, elution, alkylation, and LC-MS/MS and MS3 analysis.