Figure 3 | m6
A affects mouse embryonic stem cell differentiation. The N6
-methyladenosine (m6
A) methyltransferase METTL3 (methyltransferase-like 3) is required
for the transition of mouse embryonic stem cells (mouse ES cells) from a naive to the
more differentiated primed state. During this process, the key pluripotency factor
transcripts POU domain, class 5, transcription factor 1(Pou5f1), Krueppel-like factor 4
(Klf4) and Sox2 must be cleared. In mouse ES cells lacking Mettl3, this clearance is
defective because non-methylated mRNAs are less subjected to decay, which prevents
the establishment of a differentiated transcriptome required to achieve a primed
mouse ES cell state