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- W1978971513 endingPage "4891" @default.
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- W1978971513 abstract "Cytosine methylation at CpG dinucleotides is a critical epigenetic modification of mammalian genomes. CpG binding protein (CGBP) exhibits a unique DNA-binding specificity for unmethylated CpG motifs and is essential for early murine development. Embryonic stem cell lines deficient for CGBP were generated to further examine CGBP function. CGBP − / − cells are viable but show an increased rate of apoptosis and are unable to achieve in vitro differentiation following removal of leukemia inhibitory factor from the growth media. Instead, CGBP − / − embryonic stem cells remain undifferentiated as revealed by persistent expression of the pluripotent markers Oct4 and alkaline phosphatase. CGBP − / − cells exhibit a 60 to 80% decrease in global cytosine methylation, including hypo-methylation of repetitive elements, single-copy genes, and imprinted genes. Total DNA methyltransferase activity is reduced by 30 to 60% in CGBP − / − cells, and expression of the maintenance DNA methyltransferase 1 protein is similarly reduced. However, de novo DNA methyltransferase activity is normal. Nearly all aspects of the pleiotropic CGBP − / − phenotype are rescued by introduction of a CGBP expression vector. Hence, CGBP is essential for normal epigenetic modification of the genome by cytosine methylation and for cellular differentiation, consistent with the requirement for CGBP during early mammalian development." @default.
- W1978971513 created "2016-06-24" @default.
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- W1978971513 date "2005-06-01" @default.
- W1978971513 modified "2023-10-18" @default.
- W1978971513 title "Reduced Genomic Cytosine Methylation and Defective Cellular Differentiation in Embryonic Stem Cells Lacking CpG Binding Protein" @default.
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- W1978971513 doi "https://doi.org/10.1128/mcb.25.12.4881-4891.2005" @default.
- W1978971513 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/1140577" @default.
- W1978971513 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/15923607" @default.
- W1978971513 hasPublicationYear "2005" @default.
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