Protein-lysine methyltransferases G9a and GLP1 promote responses to DNA damage

Abstract Upon induction of DNA breaks, ATM activation leads to a cascade of local chromatin modifications that promote efficient recruitment of DNA repair proteins. Errors in this DNA repair pathway lead to genomic instability and cancer predisposition. Here, we show that the protein lysine methyltr...

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Autores principales: Vasudeva Ginjala, Lizahira Rodriguez-Colon, Bratati Ganguly, Prawallika Gangidi, Paul Gallina, Husam Al-Hraishawi, Atul Kulkarni, Jeremy Tang, Jinesh Gheeya, Srilatha Simhadri, Ming Yao, Bing Xia, Shridar Ganesan
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Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/4981bcc1f4d943a6816b9de984a70298
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spelling oai:doaj.org-article:4981bcc1f4d943a6816b9de984a702982021-12-02T15:05:03ZProtein-lysine methyltransferases G9a and GLP1 promote responses to DNA damage10.1038/s41598-017-16480-52045-2322https://doaj.org/article/4981bcc1f4d943a6816b9de984a702982017-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-16480-5https://doaj.org/toc/2045-2322Abstract Upon induction of DNA breaks, ATM activation leads to a cascade of local chromatin modifications that promote efficient recruitment of DNA repair proteins. Errors in this DNA repair pathway lead to genomic instability and cancer predisposition. Here, we show that the protein lysine methyltransferase G9a (also known as EHMT2) and GLP1 (also known as EHMT1) are critical components of the DNA repair pathway. G9a and GLP1 rapidly localizes to DNA breaks, with GLP1 localization being dependent on G9a. ATM phosphorylation of G9a on serine 569 is required for its recruitment to DNA breaks. G9a catalytic activity is required for the early recruitment of DNA repair factors including 53BP and BRCA1 to DNA breaks. Inhibition of G9a catalytic activity disrupts DNA repair pathways and increases sensitivity to ionizing radiation. Thus, G9a is a potential therapeutic target in the DNA repair pathway.Vasudeva GinjalaLizahira Rodriguez-ColonBratati GangulyPrawallika GangidiPaul GallinaHusam Al-HraishawiAtul KulkarniJeremy TangJinesh GheeyaSrilatha SimhadriMing YaoBing XiaShridar GanesanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Vasudeva Ginjala
Lizahira Rodriguez-Colon
Bratati Ganguly
Prawallika Gangidi
Paul Gallina
Husam Al-Hraishawi
Atul Kulkarni
Jeremy Tang
Jinesh Gheeya
Srilatha Simhadri
Ming Yao
Bing Xia
Shridar Ganesan
Protein-lysine methyltransferases G9a and GLP1 promote responses to DNA damage
description Abstract Upon induction of DNA breaks, ATM activation leads to a cascade of local chromatin modifications that promote efficient recruitment of DNA repair proteins. Errors in this DNA repair pathway lead to genomic instability and cancer predisposition. Here, we show that the protein lysine methyltransferase G9a (also known as EHMT2) and GLP1 (also known as EHMT1) are critical components of the DNA repair pathway. G9a and GLP1 rapidly localizes to DNA breaks, with GLP1 localization being dependent on G9a. ATM phosphorylation of G9a on serine 569 is required for its recruitment to DNA breaks. G9a catalytic activity is required for the early recruitment of DNA repair factors including 53BP and BRCA1 to DNA breaks. Inhibition of G9a catalytic activity disrupts DNA repair pathways and increases sensitivity to ionizing radiation. Thus, G9a is a potential therapeutic target in the DNA repair pathway.
format article
author Vasudeva Ginjala
Lizahira Rodriguez-Colon
Bratati Ganguly
Prawallika Gangidi
Paul Gallina
Husam Al-Hraishawi
Atul Kulkarni
Jeremy Tang
Jinesh Gheeya
Srilatha Simhadri
Ming Yao
Bing Xia
Shridar Ganesan
author_facet Vasudeva Ginjala
Lizahira Rodriguez-Colon
Bratati Ganguly
Prawallika Gangidi
Paul Gallina
Husam Al-Hraishawi
Atul Kulkarni
Jeremy Tang
Jinesh Gheeya
Srilatha Simhadri
Ming Yao
Bing Xia
Shridar Ganesan
author_sort Vasudeva Ginjala
title Protein-lysine methyltransferases G9a and GLP1 promote responses to DNA damage
title_short Protein-lysine methyltransferases G9a and GLP1 promote responses to DNA damage
title_full Protein-lysine methyltransferases G9a and GLP1 promote responses to DNA damage
title_fullStr Protein-lysine methyltransferases G9a and GLP1 promote responses to DNA damage
title_full_unstemmed Protein-lysine methyltransferases G9a and GLP1 promote responses to DNA damage
title_sort protein-lysine methyltransferases g9a and glp1 promote responses to dna damage
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/4981bcc1f4d943a6816b9de984a70298
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