UBE2L6 and carcinoma of esophagus: Of those factors identified, UBE2L6 usually acts as a ubiquitin-conjugating enzyme and was reported to be related to lipid metabolism (Wei et al., 2021), apoptosis of Mycobacterium tuberculosis-infected macrophages (Gao et al., 2021), and autophagy attenuation in oesophageal cancer cells (Falvey et al., 2017).