Dependence of Heterochromatic Histone H3 Methylation Patterns on the Arabidopsis Gene DDM1

Science ◽  
2002 ◽  
Vol 297 (5588) ◽  
pp. 1871-1873 ◽  
Author(s):  
A.-V. Gendrel
Keyword(s):  
Histone H3 ◽  
Arabidopsis Gene ◽  
Histone H3 Methylation ◽  
Methylation Patterns

Corrigendum to “Dynamic and stable histone H3 methylation patterns at the Arabidopsis FLC and AP1 loci” [Gene. 2008 Oct. 15; 423(1):43–47]

Gene ◽  
2016 ◽  
Vol 585 (2) ◽  
pp. 266-267
Author(s):  
Abdelaty Saleh ◽  
Raul Alvarez-Venegas ◽  
Ning Liu ◽  
Zoya Avramova
Keyword(s):  
Histone H3 ◽  
Histone H3 Methylation ◽  
Methylation Patterns

scholarly journals Mapping Global Histone Methylation Patterns in the Coding Regions of Human Genes

2005 ◽  
Vol 25 (11) ◽  
pp. 4650-4661 ◽  
Author(s):  
Feng Miao ◽  
Rama Natarajan
Keyword(s):  
Histone Methylation ◽  
Histone H3 ◽  
Distribution Patterns ◽  
Poor Correlation ◽  
Histone Marks ◽  
Coding Regions ◽  
New Information ◽  
Human Genes ◽  
Histone H3 Methylation ◽  
Methylation Patterns

ABSTRACT Histone methylation patterns in the human genome, especially in euchromatin regions, have not been systematically characterized. In this study, we examined the profile of histone H3 methylation (Me) patterns at different lysines (Ks) in the coding regions of human genes by genome-wide location analyses by using chromatin immunoprecipitation linked to cDNA arrays. Specifically, we compared H3-KMe marks known to be associated with active gene expression, namely, H3-K4Me, H3-K36Me, and H3-K79Me, as well as those associated with gene repression, namely, H3-K9Me, H3-K27Me, and H4-K20Me. We further compared these to histone lysine acetylation (H3-K9/14Ac). Our results demonstrated that: first, close correlations are present between active histone marks except between H3-K36Me2 and H3-K4Me2. Notably, histone H3-K79Me2 is closely associated with H3-K4Me2 and H3-K36Me2 in the coding regions. Second, close correlations are present between histone marks associated with gene silencing such as H3-K9Me3, H3-K27Me2, and H4-K20Me2. Third, a poor correlation is observed between euchromatin marks (H3-K9/K14Ac, H3-K4Me2, H3-K36Me2, and H3-K79Me2) and heterochromatin marks (H3-K9Me2, H3-K9Me3, H3-K27Me2, and H4-K20Me2). Fourth, H3-K9Me2 is neither associated with active nor repressive histone methylations. Finally, histone H3-K4Me2, H3-K4Me3, H3-K36Me2, and H3-K79Me2 are associated with hyperacetylation and active genes, whereas H3-K9Me2, H3-K9Me3, H3-K27Me2, and H4-K20Me2 are associated with hypoacetylation. These data provide novel new information regarding histone KMe distribution patterns in the coding regions of human genes.

Histone H3 methylation patterns in Brassica nigra, Brassica juncea, and Brassica carinata species

Genome ◽  
2012 ◽  
Vol 55 (1) ◽  
pp. 68-74 ◽  
Author(s):  
Agnieszka Braszewska-Zalewska ◽  
Alina Dziurlikowska ◽  
Jolanta Maluszynska
Keyword(s):  
Interphase Nucleus ◽  
Tissue Specificity ◽  
Histone H3 ◽  
Brassica Species ◽  
Interphase Nuclei ◽  
Meristematic Tissue ◽  
Post Translational Modifications ◽  
Histone H3 Methylation ◽  
Core Histones ◽  
Methylation Patterns

Core histones are subjected to various post-translational modifications, and one of them, most intensively studied in plants, is the methylation of histone H3. In the majority of analyzed plant species, dimethylation of H3 at lysine 9 (H3K9me2) is detected in heterochromatin domains, whereas methylation of H3 at lysine 4 (H3K4me2) is detected in euchromatin domains. The distribution of H3K9me2 in the interphase nucleus seems to be correlated with genome size, chromatin organization, but also with tissue specificity. In this paper, we present the analysis of the pattern and level of histone H3 methylation for two allotetraploid and one diploid Brassica species. We have found that the pattern of H3K9me2 in interphase nuclei from root meristematic tissue is comparable within the analyzed species and includes both heterochromatin and euchromatin, but the level of modification differs not only among species but even among nuclei in the same phase of the cell cycle within one species. Moreover, the differences in the level of H3K9me2 are not directly coupled with DNA content in the nuclei and are probably tissue specific.

Dynamic and stable histone H3 methylation patterns at the Arabidopsis FLC and AP1 loci

Gene ◽  
2008 ◽  
Vol 423 (1) ◽  
pp. 43-47 ◽  
Author(s):  
Abdelaty Saleh ◽  
Raul Alvarez-Venegas ◽  
Zoya Avramova
Keyword(s):  
Histone H3 ◽  
Histone H3 Methylation ◽  
Methylation Patterns
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