Abstract
We report here that fat mass and obesity-associated protein (FTO) has efficient oxidative demethylation activity targeting the abundant N6-methyladenosine (m(6)A) residues in RNA in vitro. FTO knockdown with siRNA led to increased amounts of m(6)A in mRNA, whereas overexpression of FTO resulted in decreased amounts of m(6)A in human cells. We further show the partial colocalization of FTO with nuclear speckles, which supports the notion that m(6)A in nuclear RNA is a major physiological substrate of FTO.
MeSH Terms
Adenosine/analogs & derivatives,metabolism
Alpha-Ketoglutarate-Dependent Dioxygenase FTO
Cell Nucleus/genetics,metabolism
HeLa Cells
Humans
Methylation
Obesity
Oxidation-Reduction
Proteins/genetics,metabolism
RNA, Messenger/chemistry,metabolism
Substrate Specificity
Chemicals
Proteins
RNA, Messenger
N-methyladenosine
Alpha-Ketoglutarate-Dependent Dioxygenase FTO
FTO protein, human
Adenosine
Authors & Affiliations
11 authors, click to expand affiliations / ORCID
Jia Guifang
Department of Chemistry, University of Chicago, Chicago, Illinois, USA.
Fu Ye
Zhao Xu
Dai Qing
Zheng Guanqun
Yang Ying
Yi Chengqi
Lindahl Tomas
Pan Tao
Yang Yun-Gui
He Chuan
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