The peptides were docked with xanthine oxidase (PDB ID: 2CKJ) and Nrf2 (Nuclear factor erythroid 2-related factor 2) inhibitor protein Keap-1 (PDB ID: 7Q6S), revealing strong binding interactions, particularly for DEC-1, having a binding score of nearly -8.864 kcal/mol-which is stronger than its reference ligand with Keap-1 protein-suggesting possible inhibitory roles in cancer cell proliferation and oxidative stress regulation. This evidence concerns the gene XDH and cancer.