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Mol Biosyst. 2007 Sep;3(9):590-7. Epub 2007 Jul 26.

Moving marks: dynamic histone modifications in yeast.

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University of Alaska Anchorage, 3211 Providence Drive, Anchorage, AK 99508, USA.


Posttranslational modifications of histones, both in the tails and in the globular cores, alter the functional landscape of chromatin by modulating DNA accessibility and chromatin stability, and by providing an enormous variety of alternative interaction surfaces for trans-acting factors. Complex patterns of acetylation, methylation, phosphorylation, ubiquitylation (and others) result in spatial domains of meaningful chromatin modifications, often referred to as the histone code. Whole genome studies have uncovered striking genome-wide patterns of specific modifications, and individual modifications have been linked to a variety of functional consequences for transcription, replication and repair. A key aspect of the role of histone modifications, however, is their dynamic nature-the precise timing of the addition and removal of specific marks is an essential part of the histone code. This review will highlight examples from budding yeast that illustrate the importance of these dynamic modifications in controlling transcription and repair.

[Indexed for MEDLINE]

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