Genome-wide analysis of m6A modification

N6-methyladenosine (m6A) might exert stronger affection on circRNA expression, beyond linear genes.We confirmed the view by analysing total RNA meRIP-Seq from GSE114150 and three other sets of data using RNA sequencing. Here, we study the difference in circRNA levels between wild (WT) and experimental (D395A-mutation; METTL3-knock-out) groups when m6A level changes. Results reveal knockout and D395A mutation of METTL3 could both increase the circRNA expression and the ratio of circular-to-linear. Our data propose a new pattern of circRNAs development and expand the understanding of m6A functions. mettl3 is knockedout using Crispr in embryonic stem cell in order to study the interaction between m(6)A and circRNA.