The emerging functions of histone demethylases

被引：168

作者：

Agger, Karl ^{[1
,2
]}

Christensen, Jesper ^{[1
,2
]}

Cloos, Paul A. C. ^{[1
,2
]}

Helin, Kristian ^{[1
,2
]}

机构：

[1] Univ Copenhagen, BRIC, Copenhagen 2200, Denmark

[2] Univ Copenhagen, Ctr Epigenet, Copenhagen 2200, Denmark

来源：

CURRENT OPINION IN GENETICS & DEVELOPMENT | 2008年 / 18卷 / 02期

关键词：

D O I：

10.1016/j.gde.2007.12.003

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

Epigenetic information refers to heritable changes in gene function that are stable between cell divisions but which is not a result of changes in the DNA sequence. Part of the epigenetic mechanism has been ascribed to modifications of histories or DNA that affects the transcription of specific genes. In this context, post-translational modifications of histone tails, in particular methylation of lysines, are regarded as important for the storage of epigenetic information. Regulation of this information plays an important role during cellular differentiation where cells with different characteristic features evolve from the same ancestor, despite identical genomic material. The characterization of several enzymes catalyzing histone lysine methylation have supported this concept by showing the requirement of these enzymes for normal development and their involvement in diseases such as cancer. The recent identification of proteins with histone demethylase activity has shown that the methylated mark is much more dynamic than previously anticipated, thereby potentially challenging the concept of histone-methylation in stable epigenetic programming.

引用

页码：159 / 168

页数：10

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