NPEPL1 and gastrointestinal stromal tumor: The FuTAG STX16-NPEPL1, located in chromosome 20q13.32, was first identified by Wen et al. [14] in AML (acute myeloid leukemia) and then was validated by Kang et al. [55] in gastrointestinal stromal tumors (GIST) using RT-PCR and Sanger sequencing.