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. 2022 Apr 14;12:873020. doi: 10.3389/fonc.2022.873020

Figure 5.

Figure 5

RBM15B-mediated stabilization of TRAM2 mRNA relies on RBM15B methyltransferase activity and m6A modifications in the 3’-UTR of TRAM2 mRNA. (A) LC/MS results showing the m6A methylation level. (B) Dot blot showing changes in m6A methylation. Methylene blue staining was used as a control. (C) The SRAMP database predicted the distribution of m6A sites in TRAM2 mRNA. (D) Plasmids with either WT or MUT m6A sites were constructed. The plasmid was transfected into HEK293T cells. Firefly luciferase activity was measured and normalized to Renilla luciferase activity. (E) m6A-RIP and qRT-PCR analysis of m6A levels in TRAM2 mRNA in HCC cell lines. (F) Changes in TRAM2 mRNA stability after ACT-d treatment of Huh-7 cells. *p < 0.05; **p < 0.01; ***p < 0.001. ns means no significant difference.