MTOR and neoplasm: Top enriched proteins and PTMs in PDX-human tumor pairs include: ERK1, ERK2, ERKpT202, ERKpY204, RAS10, STAT3 Ser727, CrkL Y207, MTOR, PTEN, NFKBp65, S536, FKHR-FOXO2 S256, and PI3Kp85 Y458.