In multicellular organisms the establishment, maintenance, and programmed alterations of cell-type specific gene expression patterns are regulated by epigenetic mechanisms. Thus, epigenetic alterations (DNA methylation, DNA associated Polycomb-Trithorax protein complexes, histone modifications) ensure the unique transcriptional activity and phenotypic diversity of diploid cells that carry identical or nearly identical DNA sequences.
Because DNA methyltransferase I (DNMT1) associates with replication foci during S phase and prefers hemimethylated DNA as a substrate, DNMT1 ensures the...
In multicellular organisms the establishment, maintenance, and programmed alterations of cell-type specific gene expression patterns are regulated ...
Upon chronic infection, the epigenetic cellular balance can become disrupted and, in the long run, through the epigenetic reprogramming of host cell genomes, contribute to the malignant conversion of formerly healthy cells, in many cases preceded by the establishment of an epigenetic field of cancerization.
Upon chronic infection, the epigenetic cellular balance can become disrupted and, in the long run, through the epigenetic reprogramming of host cell g...
