In addition, tumor-associated micropeptides have also been found in liver cancer, rectal cancer, glioma, acute myeloid leukemia (AML) and other cancers, such as SMIM30 [11], MPM (micropeptide in mitochondria) [12], ASAP (ATP synthase-associated peptide) [13], APPLE (a peptide located in ER) [14]. Here, MTLN is linked to acute myeloid leukemia.