BECN1 and hepatocellular carcinoma: Notably, hypoxia can phosphorylate beclin 1 at certain site as well—beclin 1 S30 was phosphorylated in U87 cells under hypoxia.27 In the present study, we first analysed the sequence information of BECN1 gene in both HCC‐LM3 and CSQT‐2 cells and found that the encoding region of BECN1 gene of the two cell lines were identical to BECN1‐NM_003766 uploaded on protein database of National Center for Biotechnology Information (NCBI).