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Published on: September 7, 2017
Regulation of protein stability of DNA methyltransferase 1 by post-translational modifications
Anthony Scott1, Jing Song, Rob Ewing
1Department of Genetics and Genome Sciences, Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA.
Abstract:
DNA methylation is an important epigenetic mechanism that ensures correct gene expression and maintains genetic stability. DNA methyltransferase 1 (DNMT1) is the primary enzyme that maintains DNA methylation during replication. Dysregulation of DNMT1 is implicated in a variety of diseases. DNMT1 protein stability is regulated via various post-translational modifications, such as acetylation and ubiquitination, but also through protein-protein interactions. These mechanisms ensure DNMT1 is properly activated during the correct time of the cell cycle and at correct genomic loci, as well as in response to appropriate extracellular cues. Further understanding of these regulatory mechanisms may help to design novel therapeutic approaches for human diseases.
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