KRT85 and neoplasm: The strongest SPOT intensity was found to be the positive control (KIAA1614568 − 583), followed by a Rx[LI]xG containing peptide from Keratin-85 (KRT8541 − 55), a SSPxxL[LM] containing peptide from the tumour protein 63 (TP63608 − 622), and the USP21156 − 171 peptide that contains the full motif (Fig. 4C).