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KMID : 0620920170490040003
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Experimental & Molecular Medicine
2017 Volume.49 No. 4 p.3 ~ p.3
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Writing, erasing and reading histone lysine methylations
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Hyun Kwang-Beom
Jeon Jong-Cheol
Park Ki-Hyun
Kim Jae-Hoon
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Abstract
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Histone modifications are key epigenetic regulatory features that have important roles in many cellular events. Lysine methylations mark various sites on the tail and globular domains of histones and their levels are precisely balanced by the action of methyltransferases (‘writers’) and demethylases (‘erasers’). In addition, distinct effector proteins (‘readers’) recognize specific methyl-lysines in a manner that depends on the neighboring amino-acid sequence and methylation state. Misregulation of histone lysine methylation has been implicated in several cancers and developmental defects. Therefore, histone lysine methylation has been considered a potential therapeutic target, and clinical trials of several inhibitors of this process have shown promising results. A more detailed understanding of histone lysine methylation is necessary for elucidating complex biological processes and, ultimately, for developing and improving disease treatments. This review summarizes enzymes responsible for histone lysine methylation and demethylation and how histone lysine methylation contributes to various biological processes.
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KEYWORD
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