Tet-dependent 5-hydroxymethyl-Cytosine modification of mRNA regulates axon guidance genes in Drosophila.

Modifications of mRNA, especially methylation of adenosine, have recently drawn much attention. The much rarer modification, 5-hydroxymethylation of cytosine (5hmC), is not well understood and is the subject of this study. Vertebrate Tet proteins are 5-methylcytosine (5mC) hydroxylases and catalyze...

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Main Authors: Badri Nath Singh, Hiep Tran, Joseph Kramer, Elmira Kirichenko, Neha Changela, Fei Wang, Yaping Feng, Dibyendu Kumar, Min Tu, Jie Lan, Martin Bizet, François Fuks, Ruth Steward
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2024-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0293894
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author Badri Nath Singh
Hiep Tran
Joseph Kramer
Elmira Kirichenko
Neha Changela
Fei Wang
Yaping Feng
Dibyendu Kumar
Min Tu
Jie Lan
Martin Bizet
François Fuks
Ruth Steward
author_facet Badri Nath Singh
Hiep Tran
Joseph Kramer
Elmira Kirichenko
Neha Changela
Fei Wang
Yaping Feng
Dibyendu Kumar
Min Tu
Jie Lan
Martin Bizet
François Fuks
Ruth Steward
author_sort Badri Nath Singh
collection DOAJ
description Modifications of mRNA, especially methylation of adenosine, have recently drawn much attention. The much rarer modification, 5-hydroxymethylation of cytosine (5hmC), is not well understood and is the subject of this study. Vertebrate Tet proteins are 5-methylcytosine (5mC) hydroxylases and catalyze the transition of 5mC to 5hmC in DNA. These enzymes have recently been shown to have the same function in messenger RNAs in both vertebrates and in Drosophila. The Tet gene is essential in Drosophila as Tet knock-out animals do not reach adulthood. We describe the identification of Tet-target genes in the embryo and larval brain by mapping one, Tet DNA-binding sites throughout the genome and two, the Tet-dependent 5hmrC modifications transcriptome-wide. 5hmrC modifications are distributed along the entire transcript, while Tet DNA-binding sites are preferentially located at the promoter where they overlap with histone H3K4me3 peaks. The identified mRNAs are preferentially involved in neuron and axon development and Tet knock-out led to a reduction of 5hmrC marks on specific mRNAs. Among the Tet-target genes were the robo2 receptor and its slit ligand that function in axon guidance in Drosophila and in vertebrates. Tet knock-out embryos show overlapping phenotypes with robo2 and both Robo2 and Slit protein levels were markedly reduced in Tet KO larval brains. Our results establish a role for Tet-dependent 5hmrC in facilitating the translation of modified mRNAs primarily in cells of the nervous system.
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spelling doaj.art-3ce50553810e4b2e8cb5a9fbd4184a4f2024-03-11T05:32:26ZengPublic Library of Science (PLoS)PLoS ONE1932-62032024-01-01192e029389410.1371/journal.pone.0293894Tet-dependent 5-hydroxymethyl-Cytosine modification of mRNA regulates axon guidance genes in Drosophila.Badri Nath SinghHiep TranJoseph KramerElmira KirichenkoNeha ChangelaFei WangYaping FengDibyendu KumarMin TuJie LanMartin BizetFrançois FuksRuth StewardModifications of mRNA, especially methylation of adenosine, have recently drawn much attention. The much rarer modification, 5-hydroxymethylation of cytosine (5hmC), is not well understood and is the subject of this study. Vertebrate Tet proteins are 5-methylcytosine (5mC) hydroxylases and catalyze the transition of 5mC to 5hmC in DNA. These enzymes have recently been shown to have the same function in messenger RNAs in both vertebrates and in Drosophila. The Tet gene is essential in Drosophila as Tet knock-out animals do not reach adulthood. We describe the identification of Tet-target genes in the embryo and larval brain by mapping one, Tet DNA-binding sites throughout the genome and two, the Tet-dependent 5hmrC modifications transcriptome-wide. 5hmrC modifications are distributed along the entire transcript, while Tet DNA-binding sites are preferentially located at the promoter where they overlap with histone H3K4me3 peaks. The identified mRNAs are preferentially involved in neuron and axon development and Tet knock-out led to a reduction of 5hmrC marks on specific mRNAs. Among the Tet-target genes were the robo2 receptor and its slit ligand that function in axon guidance in Drosophila and in vertebrates. Tet knock-out embryos show overlapping phenotypes with robo2 and both Robo2 and Slit protein levels were markedly reduced in Tet KO larval brains. Our results establish a role for Tet-dependent 5hmrC in facilitating the translation of modified mRNAs primarily in cells of the nervous system.https://doi.org/10.1371/journal.pone.0293894
spellingShingle Badri Nath Singh
Hiep Tran
Joseph Kramer
Elmira Kirichenko
Neha Changela
Fei Wang
Yaping Feng
Dibyendu Kumar
Min Tu
Jie Lan
Martin Bizet
François Fuks
Ruth Steward
Tet-dependent 5-hydroxymethyl-Cytosine modification of mRNA regulates axon guidance genes in Drosophila.
PLoS ONE
title Tet-dependent 5-hydroxymethyl-Cytosine modification of mRNA regulates axon guidance genes in Drosophila.
title_full Tet-dependent 5-hydroxymethyl-Cytosine modification of mRNA regulates axon guidance genes in Drosophila.
title_fullStr Tet-dependent 5-hydroxymethyl-Cytosine modification of mRNA regulates axon guidance genes in Drosophila.
title_full_unstemmed Tet-dependent 5-hydroxymethyl-Cytosine modification of mRNA regulates axon guidance genes in Drosophila.
title_short Tet-dependent 5-hydroxymethyl-Cytosine modification of mRNA regulates axon guidance genes in Drosophila.
title_sort tet dependent 5 hydroxymethyl cytosine modification of mrna regulates axon guidance genes in drosophila
url https://doi.org/10.1371/journal.pone.0293894
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