| Literature DB >> 28247949 |
Qiu Li1, Xiu Li1, Hao Tang2, Bin Jiang1, Yali Dou3, Myriam Gorospe4, Wengong Wang1.
Abstract
N6-methyladenosine (m6A) and m5C methylation are two major types of RNA methylation, but the impact of joint modifications on the same mRNA is unknown. Here, we show that in p21 3'UTR, NSUN2 catalyzes m5C modification and METTL3/METTL14 catalyzes m6A modification. Interestingly, methylation at m6A by METTL3/METTL14 facilitates the methylation of m5C by NSUN2, and vice versa. NSUN2-mediated m5C and METTL3/METTL14-mediated m6A methylation synergistically enhance p21 expression at the translational level, leading to elevated expression of p21 in oxidative stress-induced cellular senescence. Our findings on p21 mRNA methylation and expression reveal that joint m6A and m5C modification of the same RNA may influence each other, coordinately affecting protein expression patterns. J. Cell. Biochem. 118: 2587-2598, 2017.Entities:
Keywords: METTL14; METTL3; NSUN2; TRANSLATIONAL REGULATION; p21 mRNA METHYLATION
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Year: 2017 PMID: 28247949 PMCID: PMC5509477 DOI: 10.1002/jcb.25957
Source DB: PubMed Journal: J Cell Biochem ISSN: 0730-2312 Impact factor: 4.429